Review of the Oriental genus Angerianus Distant (Heteroptera: Miridae)

9 Pages·1991·4.6 MB·English

by  G M Stonedahl

GARY M. STONEDAHL
InternationalInstituteofEntomology, London
REVIEW OF THE ORIENTAL GENUS ANGERIANUS
DISTANT (HETEROPTERA: MIRIDAE)
Stonedahl,G.M., 1991.ReviewoftheOrientalgenusAngerianusDistant (Heteroptera:
Miridae). - Tijdschrift voor Entomologie 134: 269-277, figs. 1-20. [ISSN 0040-7496].
Published 18December 1991.
ThegenusAngerianusDistantisdiagnosedandredescribed,anditsrecentplacementin
thesubfamilyDeraeocorinaeisconfirmed.ThenewspeciesA.mindanaoandA.palawa-
nensisfromthePhilippineIslands,and/^.pallidusfromSabahandSarawakarediagnosed
anddescribed.LectotypesaredesignatedfortheDistantspeciesA.fractusandA.maurus
basedon syntypic materialpreservedintheNatural HistoryMuseum,London. Illustra-
tions areprovided for themalegenitalicstructuresofallspecies, andscanningelectron
micrographsarepresentedforthescentglandostioleandpretarsusofA. maurus.Akey
isprovidedwhichusesexternalfeaturesandcharactersofthemalegenitaliatodistinguish
thefiveknownspecies.
G. M. Stonedahl, International InstituteofEntomology, 56Queen'sGate,LondonSW7
5JR,U. K.
Key words. - Heteroptera; Miridae; Deraeocorinae; Angerianus; review; new species;
Oriental region.
Angerianus was described by Distant (1904) to Angerianus: Reuter 1910: 161 (cat.); Carvalho 1952: 72
accommodatetwonewspecies,fractusandmaurus, (classif.,cat.), 1955: 60 (key), 1957: 182 (cat.);Cassis
collected at Myitta in the Tenasserim Valley, 1984: 166 (diag.,subfam.placement).
Burma. The genus was placed in the tribe Dicy-
phini by Carvalho (1952), but Cassis (1984), in a Diagnosis. - Recognized by the head not pro-
revisionofthisgroup,movedAngerianus intothe ducedanteriadofeyes,withverticalfronsandtylus;
Deraeocorinae. Stonedahl and Cassis (1991) pres- well developed cephalic neck; long first antennal
entcharacter informationsuggesting thatAngeri- segment; broadpronotalcollar; lateral marginsof
anusismostcloselyrelatedtotheOldWorldgenus pronotumconstrictedat levelofanteriorandpos-
Fingulus Distant. In conjunction with that study, teriorbordersofcalli; stronglydeflexedhemelytra
three new species ofAngerianus were discovered with broad, deep cuneal incisure; long, tapered
in the entomological collections of the Bernice P. femora (fig. 1); strongly protruding scent gland
Bishop Museum, Honolulu. Descriptions of these ostiole (figs. 2, 3); and structureofthe malegeni-
speciesareprovidedherealongwithredescriptions talia, especially the vesica without lobal sclerites,
oifractusand maurus,andakey todistinguish the and no serrate plates bordering secondary gono-
five known species. pore.
All measurements are given in millimeters. Redescription of male. - Macropterous, length
Bodylengthismeasuredfromtheapexofthetylus 2.19-2.77; pale brownish yellow to dark brown
to thedeepestpointofthecuneal incisure. Abbre- general coloration; dorsal surface shiny, smooth;
viations used in the locality data to denote speci- collaranddiscofpronotumfinelytocoarselypunc-
men depositories correspond to the institutions tate; dorsal vestiture with moderate to dense dis-
listed in the acknowledgments. tribution of long, pale setae, or sometimes nearly
glabrous with shorter, scattered setae. Head: Ver-
Systematic account tical anteriorly, not produced distad of eyes, with
weaklyproducedtylus;broaderthanlongindorsal
view with vertex nearly twice as broad as dorsal
Angerianus Distant widthofeye;taperedposteriadofeyesintodistinct
AngerianusDistant, 1904:437-438. -Typespecies:Ai necklike region, with eyes well removed from an-
gerianusfractusDistant. terior margin of pronotum; neck anteriorly with
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TijdschriftvoorEntomologie,volume b4, 1991
Fig. 1. Angerianus maurus, dorsal
habitusfemale.
transverse dorsal depression; eyes occupying reaching lateral margins of pronotum, surface
nearlyentireheightofheadinlateralview.Anten- smooth or faintly rugulose, sometimes with long,
nae: Long, thin, inserted well dorsad of median palesetae;posteriormarginofdiscbroadlyconvex,
levelofeyes;lengthofsegmentIequaltoorgreater concealing most of mesoscutum and sometimes
than width of head across eyes; segments II-IV anterior margin of scutellum; scutellum elevated
withmoderatelylong,suberect,palesetae.Labium: above resting hemelytra; metathoracicscenteffer-
Reaching to meso- or metacoxae; segments I-III ent system with strongly protruding ostiole, eva-
similarinlength,segmentIVslightlylonger.Pron- porativeareanotoronlyslightlyextendingdorsad
otum:Stronglynarrowedanteriorlyandnoticeably of upper margin of ostiole. Hemelytra: Strongly
constrictedatlevelofposteriormarginofcalliand deflexed at cuneal fracture; lateral margins nearly
atjunctureofcollar andcalli; collar much broader straight anteriorly, curving inward distally to
than diameter ofantennal segment I, flattened or broad, deep cuneal incisure; costal vein and claval
weakly convex dorsally; calli confluent medially. suture marked by rowofcoarsepunctures; cuneus
270
Stonedahl: ReviewofAngerianus
relatively long, with curved outer margin; mem- (1984) tentatively regarded Angerianus as most
branereachingwellbeyondapexofabdomen,with closely related to the Hyaliodini, based primarily
largeprimarycellandobsoletesecondarycell.Legs: on the strongly protruding, tubelike auricle ofthe
Femora elongate, tapered, broadest basally; tibiae metaepisternal scent efferent system. Comment-
and tarsicylindrical,withpale,suberectsetae;pre- ing on the similarities between Angerianus and
tarsal claws strongly curved with prominent basal StethoconusFlor,Cassisquestionedtheplacement
tooth (fig. 5). Genitalia: Genital capsule: Small, ofthe latergenus in theClivinemini by Kerzhner
narrow, ventral region between paramere sockets (1967). Stethoconushassincebeenmovedintothe
slightly produced posteriorly; aperture large, pos- Hyaliodini by Henry et al. (1986).
teriorly directed; paramere sockets asymmetrical In a recent revision oftheOldWorldderaeoco-
withleftsocketslightlylargerandventradofright rinegenus Fingulus Distant,Stonedahl andCassis
socket. Left paramere: L-shaped with weakly to (1991, in press) suggested a possible sister group
moderately produced sensory lobe; shaft long, ta- relationship between this genus and Angerianus
pered distally to blunt, sometimes truncate apex. based on characters of the external morphology
Rightparamere: Small,ovate to lanceolate, some- and male genitalia. Further, these authors noted
timesstronglynarroweddistally;apexblunt. Phal- that Fingulus and Stethoconus, while superficially
lotheca: Short, conical, narrowlyopeneddorsodis- similar,haveverydifferentmalegenitaliaandhead
tally. Vesica: Composed of multilobed membra- morphology,indicatingthattheyarenotasclosely
nous sac surrounding distal region of ductus related as originally suggested by Cassis (1984).
seminis, and simple, unmodified secondary gono- Based on these preliminary findings, I consider
pore opening into depressed area between mem- Angerianus tobe mostclosely related toFingulus,
branous lobes. Lobes of vesica sometimes with but can say little about the relationships of these
patches of blunt tubercles, but lacking lobal scler- generatootherDeraeocorinae,excepttosuggesta
ites. Basal region of vesica not surrounded by possible link with the Hyaliodini.
sclerotizedskirt,andwithoutserrateplatesborder-
ing secondarygonopore. Keyto species ofAngerianus
Female. - Macropterous, length 2.22-2.73; sim- 1. Collar and disc of pronotum with numerous
ilar to male in general structure and coloration coarsepunctures and long, pale setae 2
except as noted in species descriptions. Genitalia Collaranddiscofpronotumwithscatteredfine
not examined. punctures and short setae, or impunctate and
appearingglabrous 4
Distribution.-TropicalAsiafromNepaleastto 2. Antennal segment I narrowly pale basally,
Taiwan, the Philippine Islands and Sabah, and brownorblackdistally; lengthofsegmentno-
south toJava. ticeablygreaterthanwidthofheadacrosseyes;
Discussion. -Distant (1904) pX^ceà.Angerianus malegenitalia as in figures 12-14
in the Division Cylaparia (Cylapinae), but Reuter mindanao sp. n.
(1910), uncertain of its relationships, treated this AntennalsegmentIdarkenedbasallyandpale
genus as incertae sedis in his classification of the distally; length of segment about equal to
Miridae. Apparently unaware of its distinct de- width ofhead across eyes 3
raeocorine pretarsus and male genitalia, Carvalho 3. Fore femora mostly pale, sometimes lightly
(1952) movedAngerianusintothetribeDicyphini infuscatedmediallyorrarely moreextensively
(Phylinae). The correct subfamilial placement of darkeneddistally;scutellumusuallywithlarge,
Angerianus wasestablishedbyCassis (1984),who pale spot distomedially; length of antennal
noted that members of this genus have a typical segment II 1.24-1.44; malegenitalia as in fig-
deraeocorine pretarsus, with cleft claw bases and ures 6-8 fractus Distant
setiformparempodia.Cassisalsoobservedthatthe Forefemoramostlyfuscous,basal fourthpale;
structure ofthe mesepimericspiracle and the me- scutellum uniformly darkened, without pale
taepisternal scent efferent system were like those spot medially; length of antennal segment II
of the Deraeocorinae and not the Dicyphini. The 1.02-1.17; male genitalia as in figures 9-11
observationsofCassisareconfirmedinthepresent maurus Distant
study,anditisfurthernotedthatthemalegenitalic 4. Palebrownishyellowgeneralcoloration; head
structures ofAngerianus support its placement in uniformlypale;lengthoflabiumaboutequalto
the Deraeocorinae, particularly the shape of the posteriorwidthofpronotum;malegenitaliaas
left paramere and the depressed, unmodified se- in figures 18-20 pallidus sp. n.
condarygonopore ofthe vesica. Dark brown general coloration; head infus-
The relationship of Angerianus to other de- cated posteriad of eyes, and with dark stripe
raeocorine genera is not well established. Cassis reaching from dorsal margin of antennal fos-
271
TijdschriftvoorEntomologie,volume 134, 1991
sae to posterior margin of head; length of la- Diagnosis. - Recognized by the coarsely punc-
bium much greater than posterior width of tatecollaranddiscofthepronotum;bicoloredfirst
pronotum; male genitalia as in figures 15-17 antennal segment, with distal region pale; dark
palawanensissp. n. scutellum, usually with large, pale spot distome-
dially; and by the structure of the male genitalia
AngerianusfractusDistant (figs. 6-8). This species is further distinguished
(figs. 6-8) from maurus by the longer second antennal seg-
AngerianusfractusDistant,1904:438,fig.283.Lectotype ment and mostlypale fore femora.
$ (new designation): Label 1, 'Type, H.T.' [red-bor- Descriptionofmale.-Length2.37-2.52;yellow-
dered disc]; 2, 'Angerianus fractus Dist.' ishbrowntodarkbrowngeneralcoloration.Head:
[handwritten];3,'TenassVail,Myitta,(Doherty).';4, Width across eyes 0.66-0.70, vertex 0.30-0.33;
''LDeicsttoatnytpeC,olAl.n,ge1r9i1a1n-u38s3f'r;ac5tus(rDeidstlaanbte,ldaedt.debdyhGe.reM)., mostlypaleanteriorlyanddorsally;gulaandneck-
Stonedahl, 1991.' (nhml) [examined]. likeregionposteriadofeyesbrownordarkbrown;
Angerianusfractus;Carvalho 1957: 182 (cat.). lorum, buccula and gena usually lightly to heavily
Figs. 2-5. Scanningelectronmicrographsof/^«^erM«»jwd»r»x.-2,Lateralviewofthorax;3,Ostioleandevaporative
areaofmetathoracicscentefferentsystem;4,Metafemurshowingtrichobothria; 5,Pretarsus.
272
Stonedahl: ReviewofAngerianus
tinged with fuscous; vertex with V-shaped mark
running from antennal fossae to depressed line
marking anterior margin of neck. Antennae: I,
length0.62-0.70,basalhalftotwo-thirdsbrownor
darkbrown,orinpalerspecimenssometimesonly
narrowly darkened basally, distal region pale yel-
lowordirtywhite; II, length 1.25-1.44,palebrow-
nishyellow;III&IV,brown. Labium: Length 1.17-
1.22; reaching between mesocoxae; segments I-III
reddishbrown,segmentIVbrownishyellow.Pron-
otum: Posterior width 1.16-1.25; collar and disc
coarselypunctate;yellowishbrown todarkbrown,
lighter specimens usually considerable darker lat-
erally;scutellumbrownordarkbrown,usuallywith
large pale spot distomedially; scent gland ostiole
grayish white, much paler than surrounding
pleura. Hemelytra: Dark yellowish brown to
mostly dark brown - lighter specimens usually
with apexofclavus,distal regionofemboliumand
cuneusdarkerbrownorbrownishred;darkerspec-
imens with apical angle of corium and base of Figs. 6-8. MalegenitaliaoiAngerianusfractus.-6,Ves-
cuneusnoticeablypaler;membranelightlytomod- ica;7,Leftparamere,dorsalview;8,Leftparamere,pos-
erately tinged with fuscous basally, sometimes to terolateralview.
levelofapexofcuneus,veinsbrownordarkbrown.
Legs: Grayish yellow or brownish yellow; femora
oflighter specimens usually with middle third in-
fuscated, darker specimens usually with femora questionable whether the male specimen then be-
moreextensivelydarkeneddistallyandwithbaseof comes a paralectotype, as there is no evidence to
tibiaenarrowlydarkened.Genitalia: Leftparamere suggest that Distant ever looked at specimens of
and vesica as in figures 6-8. this sex.
Female. - Length 2.34-2.50; width across eyes Theheadandprothoraxofthelectotypehaveat
0.65-0.67,vertex0.31-0.32;lengthofantennalseg- some point been dislodged from the body and are
ment I 0.62-0.67, segment II 1.24-1.29; length of now glued to the card point. All of the legs are
labium 1.08-1.20; posterior width of pronotum missing,andonlythefirstsegmentandbaseofthe
1.17-1.27. Similar to male in structure and color, second segmentofthe right antenna remain.
except second antennal segment usually much
shorter, and pronotum broadly pale behind calli Specimensexamined.-Burma:Tenasserim: 1$,same
and with distinct pale stripe medially on disc. dataaslectotype(nhml); 1$DawnaHills,2000-3000ft,
Distribution. - Burma, Laos, Nepal, Thailand March2-3,1908(nhml,DistantColl.).-Laos:Vientiane
and Vietnam. Prov.: 1 9,BanVanEue,SEofPhouKowKuei,800m,
genDeirsacluscsoiloonr.ati-onT,hirsansgpiencgiefsroismqyueiltleowviasrhiabbrleowinn SA31ap,urri1al9h61a54,,,D1ne9ac6t.5i,v2eJ7.,Lc.o1l9Gl8re1ec-stsJoiartnt.(b(9i,bsih1s)9h.8)2;-,1NS$eh,poaBrlea:anr1Voa$bn,usECtuhaei,(t'wDSaaelnc',.)
withlimiteddarkerbrownmarkingstomostlydark forest, on low vegetation, L.Jessop (nhml); 2 (5, 1 $,
brown (see description of male). Females are less Mugling,900-1500 ft,Jan. 14-Feb. 5, 1982, mixed scrub
variable than males in coloration, and are always onsouthfacingslopes,L.Jessop(AMNH,nhml).-Thai-
easily distinguished from otherspecies ofAngeri- land: ChiangMaiProv.: 1 (5, 1 9>Banna, 108m.May5-
anus by the pale, median stripe on the pronotal A1p0,ri1l9558-,11,T.C1.95M8,aaT.C(.biMsah)a;(1bi5s,h)1;$1,9ChDioaingSduatoh,op4,5N0ovm.,
disTc.he original description of A. fractus gives 1149,581,95T7.,CJ..ML.aaGre(sbsisiht)t;(1bi$s,h)F;an1g(J,Ho4rt9,.FEaxnpg.,StAnp.r,i5l5102--61090,
Myitta, Tenasserim as the type locality. Although m,Oct. 20, 1981 (uzmc). Trang Prov.: 1 $, Khaophap-
thereis noindicationofthenumberandsexofthe pha,Khaochang,200-400m,Jan. 13,1964,G.A.Samuel-
sthpeechiambeintsusthialtlusDtirsattainotn aexnadmitenxetd,thiattisheclweaarsfdreosm- Dseocn.(2b0is-h2)4.,-I9V6i0e,tCnaMm.:Y1o5s,hi1mo9,toBa(nbisMhe);T1ho9,ut6,k5m00smo,f
cribing the female of this species. Two specimens Dalat, 1400-1500 m,June 9-July 7, 1961, N.R. Spencer
(bish).
oiA.fractusfromthetypelocalityaredepositedin
the Natural History Museum in London. The fe-
male is here designated the lectotype, but it is
273
TijdschriftvoorEntomologie,volume 134, 1991
Figs. 9-11. Male genitalia ofAngeria-
nus maurus. -9,Vesica; 10,Leftpara-
mere, dorsal view; 11, Left paramere,
posterolateralview.
AngerianusmaurusDistant ment I 0.64-0.69, segment II 1.02-1.11; length of
(figs. 1-5,9-11) labium 1.06-1.13; posterior width of pronotum
1.13-1.18.
AngerianusmaurusDistant,1904:438.Lectotype$(new Distribution. - Widely distributed in tropical
designation):label1,'TenassVail,Myitta,(Doherty).'; Asia from Nepal, east to Taiwan and Sabah, and
2, 'DistantColl., 1911-383'; 3 (redlabeladdedhere), south toJava.
'Lectotype,AngerianusmaurusDistant,det.byG.M.
Stonedahl, 1991.' (nhml) [examined]. Discussion. - Like A. fractus, this species was
Angerianusmaurus;Carvalho, 1957: 182 (cat,). described from a unknown number of specimens
collected at Myitta in the Tenasserim Valley,
Diagnosis. - Similar to A. fractus, but distin- Burma. Four specimens apparently belonging to
guished by the darker legs, uniformly darkened the original syntype series are deposited in the
scutellum and shorter second antennal segment. NaturalHistoryMuseum inLondon. Oneofthese
Males are further distinguished by the narrower is here designated the lectotype and the others
vertex,longerlabium,andstructureofthegenitalia become paralectotypes.
(figs. 9-11). Paralectotypes.- 1 i^ (headandpronotummiss-
Descriptionofmale. - Length 2.19-2.37; brown ing), 1 Ç,samedataas lectotype; 1 $,samedataas
to dark brown general coloration. Head: Width lectotype except with two additional labels below
across eyes 0.66-0.70, vertex 0.24-0.26; brown or specimen as follows: Label 1, 'Type, H.T.' [red-
dark brown; frons, tylus, jugum, lorum and gena bordered disc]; 2, 'maurus Dist.' [handwritten]. A
usually paler brownish yellow; vertex with broad, yellowlabelwiththefollowingdatahasbeenadded
pale mark bordering inner margin of each eye. to each of these specimens: 'Paralectotype,Ange-
Antennae: I, length 0.63-0.67, basal two-thirds rianus maurus Distant, det. by G. M. Stonedahl,
dark brown, distal region pale yellow or dirty 1991.'AHparalectotypesaredepositedintheNat-
white; II, length 1.12-1.17, pale brownish yellow; ural History Museum, London.
III & IV,brown. Labium: Length 1.06-1.10; reach-
ing between meso- or metacoxae; segments I-III Specimens examined. - Cambodia: 1 9. Siem Reap
darkreddish brown, segmentIVbrownishyellow. (Angkor),Dec. 6, 1957,J. Szent-Ivany (bish). -Indone-
Pronotum: Posterior width 1.09-1.13; collar and sia:Java: 1 $, S Coast, Tankubanpraku, Sept. 27, I960,
disc coarsely punctate; uniformly brown or dark forest remnant, J.L. Gressitt (bish). - West Malaysia:
brown; scent gland ostiole yellowish white, much Pahang: 1 9,Dec.22-26, 1958,T.C.Maa (bish).Penang:
paler than surrounding pleura, evaporative area 19,Oct.1913,G.E.Bryant(nhml);19,IslandofPenang,
Baker (usnm). - Sabah: 2 $, Liawan,Jan. 14-19, 1959,
sometimeslightlytingedwithfuscous. Hemelytra: sweeping,T.C.Maa(bish);19,Samawang,nr.Sandakan,
Brown ordark brown; anterior halfofembolium, July 14, 1927 (nhml).-Sarawak: 1 $,MeritaiValley,nr.
apex of corium, and basal margin of cuneus noti- Kapit,30-300m,July1-6,1958,T.C.Maa(bish).-Nepal:
ceablypaler;membranelightlytingedwithfuscous 29,Chitwan,Sauraha,Dec.27,1981-Jan.9, 1982,Shorea
basally,sometimestolevelofapexofcuneus,veins robusta ('Sal') forest, on low vegetation, L. Jessop
brownordarkbrown.Legs:Brownishyellow,with (nhml). - Taiwan: 1 9) Menzendo, '1-6-33,' native pi-
dalilsytadlatrwko-btrhoiwrnd.sGoefnifteamloiar:aFaingdurbeasse9-o1f1.tibiae usu- n11e905a07p,pml,Te.CNf.iEelMda,oafK.(BbSaianskghi)k.mouk-r,aThD(aebicil.sahn)2d;-:31,1$1,(95,5P7i3,sh9Ja,.nL,P.aNkGorcveh.sosni1gt4,t,
Female. - Length 2.22-2.40; width across eyes (bish). Chiang Mai Prov.: 1 9, Chiangdao, April 5-11,
0.62-0.66,vertex0.26-0.28;lengthofantennalseg- 1958,T.C.Maa(bish); 1<5, 1 9,Fang,April 12-19, 1958,
274
Stonedahl; ReviewofAngerianus
Figs. 12-14. Male genitalia of
Angerianusmindanao.- 12,Ves-
ica; 13, Left paramere, dorsal
view; 14,Leftparamere,postero-
lateralview.
TN.CW. MofaaDi(lbiinshh,).1-10V0iemt,naSemp:t.12(9J,-OAcpt.H5u,nIg9-6L0,amC,M2.1Ykom- btrwoewenn.meLsaob-iuomr:meLteancgotxhae;1.s25e-g1m.e3n9;tsrIe-aIIcIhirnegddibseh-
shimoto(BISH);7(5,22,BanMeThout;500m,Dec.20- brown, segment IV yellowish brown. Pronotum:
24, I960,CM.Yoshimoto(bish); 1 9,KaryuDanar,200 Posterior width 1.17-1.24; collar and disccoarsely
Mm',DrFaebk.,E13o-f28B,an19M6e1,ThNo.uRt.,4S0p0e-n6ce0r0m(,biDsehc).;81-19,5,,I19609,, punctate; uniformly yellowish brown, sometimes
C M. Yoshimoto (bish). with collar and calli slightly darker; darkest spec-
imens with collar, calli and margins of disc dark
brown and medial region of disc lighter brown;
Angerianusmindanao sp. n. scutellum brown or yellowish brownish; scent
(figs. 12-14) gland ostiole brown or yellowish brown, not or
only slightly paler than surrounding pleura. He-
danTayop:eDmaavtaeroiadlel-SHuor:loGtaylpoeg(JR:.,PhMitl.ipAppion,e6Is0l0a0ndfst:,SMeipnt-. melytra: Brownish yellow to mostly dark brown;
26,CS. Clagg (AMNH). - Paratypes: Philippine Islands: membrane sometimes tingedwith fuscous basally,
Mindanao: Davao del Sur: 1 9 (Sept. 3) and4 9 (Sept. veins brown orbrownish yellow. Legs: Uniformly
26), same data as holotype (AMNH); 1 9, Mt. Apo, Ba- brownishyellow,orindarkerspecimens,withdis-
traeyon, 8000 ft, Sept. 14, CS. Clagg (amnh); 1 5, Mt. tal half to two-thirds of femora, and sometimes
Apo,MainitR.,6000ft,Sept. 24,CS. Clagg (nhml). base of tibiae darker brown. Genitalia: Left para-
Additional Specimens. - Philippine Islands; Minda-
nao:Bukidnon:29,Mt.Katanglad,1250m,Oct.26,1959, mere and vesica as in figures 12-14.
L.W. Quate (bish); 1 $ (badly damaged, with head, he- Female. - Length 2.48-2.60; width across eyes
melytraandallbutonelegmissing),Mt.Katanglad,1250 0.64-0.66,vertex0.31-0.33;lengthofantennalseg-
Cmo,llDeegces.,41-59,km195N9,WLo.fW.ValQeunactiae,(Abpirsihl);221-239,, 1M9t6.8,VDi.eEw. mlaebnitumI 01..7274--01..8442,;speogsmteernitorIIw0i.d99t-h1.o0f6;plreonngothtuomf
Hardy (bish). 1.12-1.20.
Etymology.-NamedfortheislandofMindanao.
Diagnosis. - Recognized by the coarsely punc- Distribution. - Mindanao, Philippine Islands.
tate pronotal collar and disc, dark brown first an- Discussion. - This species is quite variable in
tennal segment with basal sixth toone-thirdpale, general coloration, the dorsum ranging from uni-
andbythestructureofthemalegenitalia (figs. 12- formly pale brownish yellow (type and paratypes
14).Thisspeciesisfurtherdistinguishediromfrac- from Mt. Apo) to mostly brown or dark brown
tusandmarusbythelongerfirstantennalsegment (Bukidnonspecimens).Theventralpartsofallthe
anddarker scentgland ostiole. examinedspecimens areextensivelydarkened. An
Description of male. - Length 2.40-2.56; brow- examination of external morphological features
nish yellow to dark brown general coloration. andthemalegenitaliaofspecimensfromthesetwo
Head: Width across eyes 0.66-0.69, vertex 0.29- areas confirmed that they belong to a single spe-
0.32; brownishyellow,usuallyslightlydarkerven- cies.
trally, especially posteriad of eyes; head ofdarker
specimens brown or dark brown, with frons and Angerianuspalawanensis sp. n.
vertexpalerbrownishyellow. Antennae: I, length (figs. 15-17)
0.80-0.84, fuscous, with basal sixth to one-third
pale;II,length1.15-1.19,yellowishbrown;III&IV, Type material. - Holotype $: Philippine Islands: Pa-
275
TijdschriftvoorEntomologie,volume 134, 1991
Figs. 15-17. Male genitalia of
Angerianus palawanensis. - 15,
Vesica; 16, Leftparamere,dorsal
view; 17,Leftparamere,postero-
lateralview.
lawan: Mantalingajan, Pinigisan, 600m, Sept. 6, 1961 Angerianuspallidussp. n.
(UZMC,NoonaDanExp.). (figs. 18-20)
Diagnosis. - Recognized by the dark brown Type material. - Holotype $: Malaysia: Sarawak:
generalcoloration,with legs and antennae mostly Nanga Pelagus, nr. Kapit, 180-585 m, Aug. 7-14, 1958,
pale; headwithbroad,longitudinalstripebetween TC.Maa(bish).-Paratype:Malaysia:Sabah: 1$,Ranau,
eyes;pronotumappearingglabrous,withscattered, Sept. 30-Oct. 5, 1958,TC. Maa (bish).
finepuncturesoncollaranddisc; lengthoflabium
much greater than posterior width of pronotum, Diagnosis. - Similar to mindanao in size and
and malegenitalia as in figures 15-17. general coloration, but distinguished by the
Description of male holotype. - Length 2.30; broaderheadandvertex,weaklypunctatepronotal
darkbrowngeneralcoloration.Head:Widthacross disc, and structure of the male genitalia (figs. 18-
eyes0.66,vertex0.31;palebrownishyellow,except 20). The pale general coloration and faint punc-
dark brown posteriad of eyes ventrally and later- tureson thepronotaldiscwilldistinguishpallidus
ally, and with fuscous stripebetweeneyes extend- fromfractus, maurus andpalawanensis.
ing to anterior margin ofpronotum. Antennae: I, Description of male. - Length 2.55-2.77; pale
length0.77,basalhalfdarkyellowishbrown,distal brownish yellow general coloration. Head: Width
yheallfloswl;ighIItIly&palIeVr,;bIrI,owlne.ngtLhab1i.u59m,:paLleengbtrhown1.i3s1h; bacrroowsnsiesyhesyeOl.lloòw-.Q.Alnlt,evnenrateex:0I.,36l-e0n.g3t9h; u0.n8i8f,orpmallye
reaching to posterior margin of metacoxae; seg- brownish yellow; II-IV, missing. Labium: Length
ments I & II dark brown, III & IV pale brownish 1.39; reachingbetweenmesocoxae;uniformlypale
yellow.Pronotum:Posteriorwidth 1.06;collarand brownishyellow. Pronotum: Posteriorwidth 1.38;
disc with scattered fine punctures, appearing gla- brownish yellow; collar and disc with very faint,
brous; uniformly dark brown, except somewhat shallowpunctures andshort,palesetae; scutellum
palerlaterallydorsadofcoxalcleft;scutellumdark brownorpalegrayishyellow, moderatelyelevated
brown,lessstronglyelevatedabovelevelofhemel- above levelofresting hemelytra; scentglandosti-
ytra; scent gland ostiole dark brown, similar in oledirtyyellow,onlyslightlypalerthansurround-
coloration to surrounding pleura. Hemelytra: Cla- ing pleura. Hemelytra: Clavus brown or grayish
vus and corium dark brown, becoming slightly yellow; corium and cuneus clear pale yellow - co-
paler distally; cuneus brown basally, outer margin rium of holotype lightly tinged with fuscous ba-
and apex broadly pale, almost clear; membrane sally,especiallyborderingclavalsuture;membrane
lightly tinged with fuscous basally, veins brown, clear,withslightyellowcolorationborderingveins.
paler distally. Legs: Uniformly pale yellow. Geni- Legs: Uniformly pale brownish yellow. Genitalia:
talia: Figures 15-17. Left paramere andvesica as in figures 18-20.
Female. - Unknown. Female. - Unknown.
Etymology. - Named for its occurrence on the Etymology. - From the Latin, pallidus (pale),
islandofPalawan. referring to the palegeneral coloration.
Distribution. - Palawan, Philippine Islands. Distribution. - Sabah and Sarawak, Malaysia.
276
Stonedahl: ReviewofAngerianus
Figs. 18-20. Male genitalia of
Angerianuspallidus.-18,Vesica;
19, Left paramere, dorsal view;
20, Left paramere, posterolateral
Discussion. - The paratype of this species is Carvalho,J.C.M.,1952.Onthemajorclassificationofthe
uniformlypaledorsaily,whiletheholotypehasthe Miridae (Hemiptera). (With keys tosubfamilies and
scutellum and clavus darker than the rest of the tribes and acatalogueoftheWorldgenera). -Anais
dorsum. All other features of the two specimens daAcademiaBrasileiradeCiências24: 31-110.
including the malegenitalia are indistinguishable, Carvoaflthhoe,JW.orC.ldM..,-1B9o5l5e.tKiemydsotMoutsheeugePnaerraaenosfeMEimriildiaoe
although it is noted that the holotype is slightly Goeldi 11: 1-151.
larger than the paratype. Carvalho,J.C. M., 1957.CatalogueoftheMiridaeofthe
World, Part L Subfamilies Cylapinae, Deraeocorinae
andBryocorinae.-ArquivosdoMuseuNacional,Rio
Acknowledgments
deJanWeiro44: 1-158.
I thank the following individuals and their re- DistCaenytl,onaLn.d,1B9u0r4m.aT.hRehFyanucnhaotoaf.BrViotli.shIII(nHdieat,erIonpctleurdai)n.g
ssNtpauetdcuytr:iavleRaHinindssattlioltruyt,Ti.oNnsSecwfhourYho,prrkAovmi(edAriMinNcgHa)ns;peMGcuoisrmedenousnmfMoo.fr Henc-royTn,auysTlojJra.p,aoNnnediacFlursaJrn.(c,HiJes.,teWLroonp&dteoKrn.a,:M5M.0i3rGiopd.tate,):198A6.prSetdeatthoo-r
Nishida, Bernice P. Bishop Museum, Honolulu ofStephanitislacebugs newlydiscoveredintheUni-
(bish); William R. Dolling, Natural History Mu- tedStates,promisinginthebiocontrolofAzaleaLace
seum,London (nhml);RichardC. Froeschnerand Bug (Heteroptera: Tingidae). - Proceedings of the
Thomas J. Henry, National Museum of Natural KerEznhtnoemro,loI.gMi.c,al19S6o7c.ieFtyamoiflWyaMsihriindgateo(nCa8p8:si7d2a2e)-.73-0.In:
History, Smithsonian Institution, Washington, G. Ya. Bei-Bienko (ed.), Keys to the Insects of the
D.C. (USNM); and Nils Moller Andersen, Univer- EuropeanUSSR.Vol.I.Apterygota,Palaeoptera,He-
sitetetsZoologiskeMuseum,Copenhagen (UZMC). mimetabola.-ZoologicalInstitute,AcademyofScien-
Bonnie B. Hall, Scientific Illustrator, Systematic cesoftheUSSR,Leningrad.913-1003.[Englishtrans-
EntomologyLaboratory,DepartmentofEntomol- lation by Israel Program for Scientific Translations,
ogy, Oregon State University prepared the dorsal ReuJteerru,sOa.leMm..,Pr1i9n1t0.edNbeyuSe.MBeointsräogneBziunrdiPnhgy,lJoegreunsiaeleumn]d.
habitus illustration of Angerianus maurus, with Systematik der Miriden nebst einleitenden Bemer-
funds made availableby theOregonStateUniver- kungenüberdiePhylogeniederHeteropteren-Fami-
sity Foundation (Systematic Entomology Labora- lien.-ActaSocietatisScientiarumFennicae37(3): 1-
tory Fund). Assistance with preparation of the 167.
scanning electron micrographs was received from Stonedahl,G.M.&G.Cassis,1991.Revisionandcladistic
JohnSpratt andSusan Barnes,SEM Unit, nhml. analysisoftheplantbuggenusFingulusDistant(He-
teroptera: Miridae: Deraeocorinae). - Novitates, In
Press.
References
Cassis, G., 1984. A systematic study of the subfamily
Dicyphinae (Heteroptera: Miridae). - Ph. D. diss., Received: 25 March 1991
OregonStateUniv.,Corvallis, 389p. Accepted: 2July 1991
277