New Conopidae from the Neotropical region (Diptera)

5 Pages·2003·1.9 MB·English

86 ENTOMOLOGICALNEWS
NEW CONOPIDAE FROM THE
NEOTROPICAL REGION
(DIPTERA)1
SidneyCamras2
ABSTRACT: A new subgenus Aureoconops of the genus Physoconops and six new species of
Conopidaearedescribed:Physoconops(Aureoconops)aureolusfromPeru;P.(Pachyconops)thomp-
sonifromthe Bahamas; P. (Kroeberoconops)argentinusfromArgentina: ZodionchavalaifromAr-
gentina;ZodionbellumfromMexico; andStylogasterparrilloifromCostaRica.
KEY WORDS: Physoconopus,Aureoconopus, Zodion, Stylogaster, Diptera,Conopidae, Neotropi-
cal.
The six new species ofconopids described in this paper are quite distinct and
easily recognized. Many otherapparently new species are present in various col-
lections received for identification, but more study and material are required to
rule out variation ofknown species.
Conopidae are often collected individually as evident from these new species
being known from single specimens, or in one case, from two specimens ofthe
same sex.
GenusPhysoconops Szilady
NEW SUBGENUS
SubgenusAureoconops,
(Fig. 1)
TypespeciesPhysoconopsaureolusCamras
Vertextriangular,largeandprominent,extendinganteriorlyoveronethirdofthefrons.Fronsnar-
row,longerthanwide.Firstflagellomereonefourthlongerthanpedicel.Abdominalpedicellongand
narrow.Secondtergite fourtimes as longas wide.Goldpollinose areasextensive anddistinct from
darkareas.
Comments. This subgenus is unique in the large triangular shape ofthe ver-
tex and the prominent gold pollinose coloration. The narrow frons associated
with the long first flagellomere is also unusual. In my key to the subgenera of
Conops (Camras 1955: 161) it comes closest to Gyroconops which has a wide
frons and the vertex mainly rounded anteriorly.
NEW SPECIES
Physoconops (Aureoconops) aureolus,
(Fig.l)
Head yellow and gold pollinose.Ocellartubercle andY-shaped pattern on frons black,as isthe
antenna, proboscis and occiput centrally. Black hairon dorsal part ofvertex. Proboscis nearly two
timesas longashead.Antennal proportions 1: 2: 2V4.Scapefourtimesaslongaswide.
Thoraxbrownishblackbutmainlygoldpollinose.Distinctwidegoldpollinosepleuralstripejoins
goldofthemesonotum.Avelvetyblackmidstripeanddividedblacklateralstripeonthemesonotum.
1ReceivedonJanuary31,2002.AcceptedonNovember28,2003.
2Associate,DivisionofInsects,TheField Museum, 1400S.Lake Shore Drive,Chicago,IL60605-
2496,USA.
MailedonJune 23,2004
Vol. 114,No.2,March&April 2003 87
Legsbrownishblack,mainlygoldpollinose.Apical partoftarsiandtipsofclawsblack.Clawsoth-
erwiseandpulvilli yellow.
WingwithbrownishgraypatternbetweenveinR+R1 andRS+R4+5andvenaspuria.Apical part
ofwing palergray. Pattern darkest above and below vein R4+5. Halter yellow,rufous at club and
base.
Abdomen mainly black, brownish black on second segment, yellow atjunction ofsecond and
third segments. Gold pollinose apical margins on all segments and entirely so on apical segment.
Pedicel longandnarrow.Clubofabdomen abnormallycontracted.Genitaliabrownishblack.
Length: 12 mm.
Type Data. Holotype Cf. Peru: Madrede Dios: Manu,RioManu,250 m.,Pakitza, 12 7'S,70
58'W,9-23.ix.1988,AmnonFreidberg.HeldondepositatUSNMforPeru(seeZumbado&Thomp-
son, 1997:80fordetailsonthisconcept).
Remarks. This specieskeys toP.costatus(Fabricius, 1805) in my key (Cam-
ras, 1955: 186) but that species has a wide frons and belongs to the subgenus
Aconops.
Physoconops (Pachyconops) thompsoni, NEW SPECIES
Headentirelyblackexceptforrufousattheantennal prominenceofthefrons,facialgroovesand
oral area, proboscis except for labellae, most of style, part of scape, and small areas on occiput;
orbitalsandfacialgroovesyellowishwhitepollinose.Antennal proportions 1:2:2.Scapethreetimes
aslongaswide.
Thoraxentirelyblackexceptforsmall rufousareasnearpostpronotumandonpleura.Coxaeand
legsrufous,buttarsi blackexceptatbase.Pulvilliandclawsyellow;tipsofclawsblack.
WingandveinsfromcostatoveinCuA+CuAl brightrufous;sharplyblackinapicalhalfofcell
R4+5andadjacentcellR2+3;blackalongveinCuAl indiscalcell;verypalerufousinposteriorpart
ofwing,butdistinctlyhyalinebetweenvenaspuriaandveinM.Halterrufous,blackatclubandbase.
Abdomen rufous on segments one to three except for narrow black margin at base offirst and
apexofthird segments; apical marginsyellow whitepollinoseatfirsttothird segmentsandat sides
ofsecondsegment.Remainderofabdomenandgenitaliashiningblack.
Length: 14mm.
Type Data. Holotype Cf. Bahamas: San Salvador Island, North Point. 4.vi. 1978, A.G. Scar-
brough(USNM).
Remarks. This specieskeystocouplet6 (Camras, 1955: 184),but has rufous
on abdominal segments two and most ofone and three. Named for F. Christian
Thompson, who brought this specimen to my attention, in appreciation for his
leadership and his fine work on Syrphidae especially those ofthe West Indies.
Physoconops (Kroeberoconops) argentinus, NEW SPECIES
(Fig. 2)
Head,antennaand proboscis black. Upper medial partofface yellow;ocelli and small areas on
antennae rufous; face,grooves and orbitals gold pollinose in some views.Antennal proportions I:
21/2:l1/2.Scape3Vi times longas wide.
Thorax entirely black, faint yellow pollinose in some views. Legs black. Coxae gold pollinose.
Rufousareasonknees,tarsi,andpulvilli.Clawsentirely black.
Wing pattern from costa to vein CuA+CuAl mainly rufous but paler in costal and cell R+Bm:
blackishapicallyespeciallyalongveinR4+5andalongentireveinR1.Halterrufous,clubblack,gray
atbase.
Abdomenblack,withadistinctrufousbandatjunctionofsecondandthirdsegments;secondseg-
mentveryshiny;goldpollinoseposteriorbandsonsegmentsthreetofive,entirelygoldpollinoseon
88 ENTOMOLOGICALNEWS
1
1,Physoconops aureolus, vertex and frons; 2, Physoconops argentinus, same; 3,Zodion
helium, mesonotum;4,Zodionchvalai,abdomen; 5,Stylogasterparrilloi,ovipositor,api-
cal segment; 6,Stylogastertriannulata, same.
sixth segment. Second segment five times as long as wide. Third segment shorter and becoming
muchwiderapicallyresulting in adistinctwideabdominalclub.Genitaliarufousand black.
mm.
Length: 11
TypeData.HolotypeCf.Argentina: Volcan,2000m.,ii.1927 (USNM)
Remarks. This species keys to P. hermanni (Krober, 1915) (Camras, 1955:
184) but has the facial grooves and legs black.
Vol. 114.No.2.March&April 2003 89_
Zodion bellum, NEW SPECIES
(Fig. 3)
Headmainlyyellow,vertexandfronsrufous.Blackishareaandgoldpollinosetriangleatsideof
vertex. Ocellar tubercle black. Face and gena gold pollinose. Brown area between face and gena.
Groovesblackish.Occiputgraypollinose,goldpollinosebetweentheusualtwoblacklinesfromthe
vertex toneck.Antennamainly black,firstflagellomeredarkrufous.Aristablack.Antennal propor-
tions 1:4:2'/2.Proboscisblack,oneandonehalftimeshead length.
Thoraxandcoxaebluegraypollinosewithyellowishareas.Mesonotalblackstripesverydistinct,
thesubmedialsbeingalittle narrowerand shorterthanthe sublaterals andthe laterals.The sublater-
alsextendontothe scutellum. Blackareasonanepisternum.Eight scutellarbristles.Legsandclaws
black. Pulvilli yellow. Wing grayish hyaline, veins black. Calypteryellowish white. Halter yellow,
brownatbase.
Abdominal segmentsonetothreebluegray pollinose,remainderoftheabdomengold pollinose.
Secondandthird segments with large paired triangularblack marks and narrowgoldpollinosepos-
terior margins. Very distinct narrow black stripes on fourth segment. V-shaped posteriormargin of
fifth segmentappearsblackishonanteriorview.Genitaliashiningblack.
Length: 8 mm.
Type Data. Holotype Cf. Mexico: El Camaron, 20 mi. E, Oax. 21.vii.1956, D.D. Linsdale
(CamrasCollection).
Remarks. This specieskeystoZ.pictum Schiner, 1868 (PearsonandCamras,
1978: 205) which does not have the distinctive gold pollen on the apical abdom-
inal segments.This specimen was studied by Pearson and he also thought it was
new and nearZ.pictiim.
Zodion chvalai, NEW SPECIES
(Fig. 4)
Vertex reddish brown laterallyextendingontothe frons,yellowcentrally.Ocellartriangle black.
Fronsbrightorange yellow. Face,grooves,genaand lowerocciputyellow pollinose. Upperocciput
mainly black with usual pairofblack lines from vertex to neck.Antenna yellow, black apically on
firstflagellomereandatbaseandapexofarista.Proportions 1:3:3.Genatwothirdsoftheeyeheight.
Proboscisblack,morethantwotimeshead length.
Thoraxpaleyellowandgray,grayandyellowishpollinose. Distinct sublateral black lineextend-
ingontothescutellum.Slendershorterblack midlinedoesnotreachthescutellum. Metanotumgray
pollinose,lowermargin shining black.Coxae and legsyellow with yellow pollinose areason coxae
and tibiae. Apical segment oftarsi partly black. Pulvilli yellow; claw yellow, black apically. Wing
faintlyyellowhyaline,yellow incostal and subcostal cellsandatbase. Halteryellow.
Abdomen rufous with gold pollinose longitudinal markings. Distinct black posteriormarginson
segments two, three and four. Seventh segment, genitalia and theca shining rufous. Theca slender
withblackmargin,as longaswide.
Length: 6.5 mm.
TypeData. Holotype 9 Argentina:Cordoba,CapilladelMonte,coll.Prf.Hosseus(ChvalaCol-
lection).
Remarks. This species keys to couplet 19 (Pearson and Camras, 1975:206),
but has the abdomen rufous with distinct black posterior margins on segments
three, four and five. An entirely rufous abdomen in a female is unique in this
genus.
Etymology. Named for Professor Milan Chvala,Charles University, Prague,
in appreciation ofhis help and his fine work on Palearctic Conopidae.
90 ENTOMOLOGICALNEWS
NEW SPECIES
Stylogasterparrilloi,
(Fig. 5)
Vertextriangular,darkyellow,reachinganterioronethirdoffrons.Ocellartubercleshiningblack.
Frons velvety brownish black. Face and gena yellow with some brownish areas, silvery pollinose.
Medialeyefacetsverylarge.Occiputpale,darkdorsally,whitepollinose.Antennadarkyellow,first
flagellomere rufous, black dorsally. Arista black, as long as pedicel. Antennal proportions 1:2:6.
Proboscisblack,yellowbasallyandonlabella;second(middle)segmentthreetimesaslongashead.
Thorax yellow and white. Most of mesonotum and pleural stripe back with greenish sheen.
Postpronotum, posterior margin of mesonotum, margins of scutellum and upper margin of meta-
notumyellow.Pro-andmesocoxaandlegsyellow.Alltarsiblack.Metafemurwiththreeblackbands,
the apical band is narrowest. Metatibia black, yellow at base and preapical band which is almost
entirely whitehaired,andoccupies aboutonefourthofthetibia.Winggrayishhyaline,veinsblack.
Halteryellow,brownatclubandbase.
Abdomen rufous,withyellow anteriorbandswhichare white pollinosein some views.Fifthter-
giteblackdorsallyonanteriorhalf. Hairson sidesoffirsttergitewhite.The narrow firstsegmentof
the ovipositor and almost proximal halfofsecond segment rufous,the remainderblack.Third seg-
mentblackonproximaltwofifthsandnarrowlyattheapexincludingthemedialprocessandmostof
theapicalstructures.Preapicalbandwhiteandwhitehairedoccupyingtwofifthsofthethirdsegment.
Length: 14mm.(Abdomen4mm,ovipositor7mm.).
TypeData.Holotype tf.CostaRica,Ala.,20kmS.Upala, 11-15.V.1990.F.D.Parker(UtahState
University).Paratype:Samedataasholotype, 1l-20.iv.1991.Similartotheholotypebuthavingblack
onthefourthtergiteproximallyatthecenter,andapicallyatthe sides.
Remarks. In the key to the species of the neglecta group (Camras and
Parrillo, 1985:123),this specieskeys toS. triannulata Camras and Parrillo, 1985
(Fig. 6). That species has a longer and more slender ovipositor, more than twice
the length ofthe abdomen. The rufous at the base ofthe second segment is very
short, and the white area on the third segment occupies about five-sixths. There
is almost no black apically.
Etymology. Named after Philip P. Parrillo, Field Museum, Insect Division,
Chicago,in appreciationofhis opinions,advice,andassistanceovermany years.
ACKNOWLEDGEMENTS
MythanksareduetoDavidPollockforassistanceinpreparationofthemanuscript;toLoriGrove
forinking and preparingthe illustrations forpublication; and to RupertWenzel andAlfred Newton
forreviewingthe manuscriptandmaking suggestions.Allarestaffmembersofthe FieldMuseum.
LITERATURE CITED
Camras, S. 1955. A review of the new world flies of the genus Conops and allies (Diptera:
Conopidae).ProceedingsoftheUnitedStates National Museum 105 (3355):155-187.
Camras, S. and P. P. Parrillo. 1985. Review of new world Stylogaster (Diptera: Conopidae).
AnnalsoftheEntomologicalSocietyofAmerica78:111-126.
Pearson,D.L.andS.Camras. 1978. Notesand key toneotropicalZodion (Diptera: Conopidae).
JournaloftheKansas Entomological Society 51(2):198-206.
M
Zumbado, and F. C.Thompson. 1997. Nuevas especies de Sterphus (Diptera: Syrphidae) de
CostaRicaconnotassobreespeciespresentesenCostaRica.SouthwesternEntomologist22:79-
90.