Revision of the south american thynnine genus upa (hymenoptera: tiphiidae)

9 Pages·1996·7.2 MB·

by  L S Kimsey

PROC. ENTOMOL. SOC. WASH.
98(1), 1996, pp. 55-63
REVISION OF THE SOUTH AMERICAN THYNNINE GENUS UPA
(HYMENOPTERA: TIPHITDAE)
LYNN S. KIMSEY
Department of Entomology, University of California, Davis, CA 95616, U.S.A.
Abstract.(cid:8212)Six new species of the tiphiid genus Upa are described: U. bidentata, U.
ligulata, U. longispina, U. nasata, U. porteri, and U. tridentata. All these species are
from Brazil, except U. porteri which is from Argentina. A distribution map, figures, and
a key to males of all seven described species are given.
Key Words: Tiphiidae, Thynninae, Upa
The genus Upa was originally described mensions are measured using the length of
by Kimsey (Genise and Kimsey 1991), the medial axis and breadth of the apex of
based on the Brazilian species Scotaena im- each flagellomere.
pressiceps Turner. More recently specimens Specimens were borrowed from the fol-
borrowed from several collections have re- lowing collections and individuals: COL-
vealed six previously undescribed species LEGE STATION(cid:8212)Texas A&M University,
that belong to this genus. Very little is College Station, U.S.A. (R. Wharton, J.
known about the genus Upa: females are Woolley); COPENHAGEN(cid:8212)Zoologisk
known only for two species (impressiceps Museum, Copenhagen, Denmark (B. Peter-
and porteri) and the biology of this group son); DAVIS(cid:8212)Bohart Museum of Ento-
is completely unknown. Based on collec- mology, University of California, Davis,
tion data for the new species it is clear that U.S.A. (S. L. Heydon); GAINES VILLE(cid:8212)
these wasps occur in some of the more an- Florida State Collection of Arthropods,
cient landscapes in South America, partic- Gainesville (L. A. Stange); LONDON
ularly in the Brazilian highlands. They are The Natural History Museum, London, En-
distributed from Misiones, Argentina, and gland (M. Fitton); LOS ANGELES(cid:8212)Los
southeastern Paraguay, east to Brazil, in the Angeles County Museum; Los Angeles,
states of Santa Catarina, Parana, Rio de Ja- California, U.S.A. (R. R. Snelling); OT-
neiro, Minas Gerais and Bahia (Fig. 1), and TAWA(cid:8212)Canadian National Insect Collec-
Rio Grande do Sul. tion, Agriculture Canada, Ottawa, Ontario,
Certain morphological features used in Canada (L. Masner); PITTSBURGH(cid:8212)Car-
this study need to be clarified. Coloration is negie Museum of Natural History, Pitts-
useful taxonomically only in overall pat- burgh, Pennsylvania, U.S.A. (J. Rawlins);
tern, precise color markings vary slightly SAO PAULO(cid:8212)Museu de Zoologia da
from specimen to specimen, with certain Universidade de Sao Paulo, Sao Paulo, Bra-
some individuals having the yellow mark- zil (C. R. EF Brandéo). Type repositories of
ings smaller or muddier than others. In de- specimens discussed below are indicated by
scriptions of punctuation below, punctures the city name of the collection given in cap-
should be assumed to be circular in outline ital letters and enclosed in parentheses. Ad-
unless otherwise stated. Finally, flagellar di- ditionally, (cid:8220)(cid:8220)PD(cid:8221)(cid:8217) is used as an abbreviation
56 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
% bidentata
Q impressiceps
° ligulata
Hi /ongispina
[] nasuta
24 porteri
@ tridentata
Fig. 1. Distribution map of Upa species.
for puncture diameter when discussing rel- verse yellow or orange bands; propodeum with
large U-shaped yellow spot; aedeagus with
ative densities of integumental punctation.
ventral lobe extending only as far as apex of
jommmaraene (eg, 3) scocconoencvvce tridentata
KEY TO THE MALES OF
. Clypeus with single submedial projection (Fig.
SPECIES OF UPA
3); vertex greatly expanded beyond hindocelli,
1. Clypeus gently convex, flat or slightly concave posterior margin separated from hindocelli by
between dorsal margin and trilobate apical at least 2 midocellus diameters (Fig. 3); hy-
margin, without additional projections or lobes popygium ligulate, without apicomedial emar-
(as in Fig. 5); propodeum highly polished and gination and not apically bidentate (as in Fig.
Sparselyspunctate mewn einen enna ienene 2 B)isesiaaye eee sd. Ae ligulata
(cid:8212) Clypeus with one or more submedial lobes or Clypeus with two submedial or subapical pro-
projections between dorsal margin and trilo- jections or lobes (Figs. 2, 6); vertex not unusu-
bate apical margin (as in Figs. 2, 3, 6); pro- ally expanded posteriorly, posterior margin
podeum densely punctate, appearing rough, separated from hindocelli by less than 1.5 mi-
punctures separated by one PD or less ...... 3 docellus diameters; hypopygium usually api-
2. Abdomen without transverse yellow or orange comedially emarginate or apically bidentate (as
bands beyond basal tergum; propodeum with IN FIG 9) o jeu pial oh Choe ae ean 4
small ovoid yellow lateral spot; aedeagus with . Clypeus with submedial projections located
greatly elongate ventral lobe extending further close together and just above apical margin,
(HOGNI fORMENINESTS ooasccadaoovooadce longispina apical margin with large rounded medial lobe
(cid:8212) Abdomen with three or more terga with trans- (IgE TG) Iai h. old HEPRE see leper ees ne cheater ie teneetene nasuta
VOLUME 98, NUMBER 1 57
(cid:8212) Clypeus with submedial projections broadly orly yellow; scutum with two small poster-
separated, apical margin with three subequal omedial yellow spots and lateral margin
lobes or teeth (as in Fig. 2)
yellow; mesopleuron with dorsal and
5. Hypopygium apically rounded, not emarginate
medial yellow spots; scutellar medial and
or dentate (Fig. 8); aedeagus with ventral and
dorsal lobes well-developed (Fig. 15) .. bidentata anterolateral spots yellow; metanotal medial
(cid:8212) Hypopygium apically emarginate or bidentate and anterolateral spots yellow; propodeum
(as in Fig. 9); aedeagus with ventral lobe high- with large sublateral yellow band; fore- and
ly reduced or absent, dorsal lobes small and
midcoxae anteriorly yellow; hindcoxae with
digitate (Fig. 14)
ventral and dorsal yellow bands; fore- and
6. Epipygium lateral carinae not protruding dor-
sally, dorsal surface appearing essentially flat; midfemur ventrally yellow; hindfemur ven-
parameres relatively flat, not cupping aedeagus trally yellow grading to orange laterally and
(icae Ie) PEesl bttegn SSC e to ARR porteri apically, and dark brown basally; foretibial
(cid:8212) Epipygium lateral carinae strongly protruding
outer surface yellow; rest of legs orange;
dorsally, and dorsal surface appearing concave
sternum I with symmetrically lobate medial
as a result; parameres strongly curved around
aedeagus (Fig. 18) ............. impressiceps yellow spot; tergum I lateral margin and
posterior bat-shaped bands yellow; seg-
ments II-IV with anterior brown band, sub-
Upa bidentata Kimsey,
medial yellow one with widely separated
NEw SPECIES
dark brown spots embedded in posterior
(Figs. 1; 8, 12; 15)
margin, followed by narrower brown band;
Description.(cid:8212)Male (holotype): Body segments V(cid:8212)VII dark brown. Wing veins
length 11 mm; forewing length 10 mm; fa- orange, membrane yellow.
cial and scutal punctures small and contig- Paratype males vary slightly in extent of
uous; clypeus apically trilobate, with two yellow marks, particularly on clypeus and
widely separated medial projections; flagel- propodeum, and orange markings on terga
lomere I twice as long as broad; flagello- II-IV, body length, 11-13 mm, and fore-
mere II 2.5X as long as broad; pronotal and wing length, 8-10 mm.
scutellar punctures 1(cid:8212)3 PD apart; vertex un- Female unknown.
modified; mesopleural punctures 0.5(cid:8212)1 PD Type material.(cid:8212)Holotype, male, BRA-
apart; propodeal punctures laterally contig- ZIL: Santa Catarina, Nova Teutonia, Oct.
uous to 0.5(cid:8212)1 PD medially, punctures trans- 1964, EFP laumann (SAO PAULO). The ho-
versely striatiform, with impunctate trian- lotype is missing one ultimate hindtarso-
gular dorsomedial area; tergum I highly mere, and the flagellum is broken off and
polished, punctures 3(cid:8212)5 PD apart; terga II-(cid:8212) glued to the side of the pin. Paratypes: 2
VI punctures 0.5(cid:8212)1 PD apart; epipygium males, same data as type, except Oct. 1935
apically truncate, medially slightly concave; (LONDON), 1 male, Feb. 1937 (LON-
hypopygium ligulate, apically rounded (Fig. DON), 1 male, Sept. 1968 (DAVIS), 1
8); genital capsule (Fig. 15): paramere sub- male, no date (DAVIS); 1 male: Parana,
medially curved and strongly tapered api- Curitiba, 4 Jan. 1937, C. Westerman (SAO
cally (Fig. 12); aedeagus with small dorsal PAULO).
lobe before apical loop and ventral lobes Etymology.(cid:8212)The species name refers to
large and broad. Coloration black, with yel- the two medial projections on the male
low markings; clypeus yellow except dorsal clypeus.
margin and apical rim; lower eye margins Discussion.(cid:8212)Superficially this species
and top of eye yellow; antennal lobes yel- strongly resembles porteri and impressi-
low; vertex with sublateral yellow bands; ceps; all have the same bilobate, medial
pronotum with anterior carina yellow, yel- clypeal projection, and overall coloration.
low lateral spot and transverse lateral yel- However, bidentata differs from these spe-
low band adjacent to tegula; tegula anteri- cies by the ligulate hypopygium (similar to
58 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
5. tridentata
7. porteri
6. nasuta
S
Davy
8. bidentata 44 Ii
9. tridentata . ligulata 12. bidentata
10. tridentata
13. tridentata 14. porteri 15. bidentata 16. ligulata 18. impressiceps
Figs. 2-18. Details of species in the genus Upa. 2, 3, 5, 6, Front view of male face, with one antenna
removed. 4, Front view of female face, with one antenna removed. 7, Dorsal view of female thorax, with head
(top), legs, and abdomen (bottom) removed. 8, 9, Apex of hypopygium. 10-12, External view of paramere. 13(cid:8212)
16, Lateral view of genital capsule, with closest paramere removed. Abbreviations: a = aedeagus, al = apical
loop, dl = dorsal lobe, vl = ventral lobe; gb = gonobase; p = paramere; v = volsella. 17, 18. Dorsal view of
genital capsule.
VOLUME 98, NUMBER 1 59
that of Jigulata); short aedeagal column with narrow ventral yellow stripe; terga I-
(only about half as long as the paramere); IV with subapical transverse yellow band
well-developed dorsal aedeagal lobe; and broken medially, width of break increasing
greatly elongate ventral lobes. Upa porteri posteriorly, on tergum IV band halves sep-
and impressiceps both have the aedeagal arated by their length; sterna II-III with
column more than half as long as the par- small posterolateral yellow spot. Wings
amere, short ventral aedeagal lobes and re- with orange veins; membrane yellow-tinted,
duced or absent dorsal ones. darkest in costal and marginal cells.
Female unknown.
Upa ligulata Kimsey, Type material(cid:8212)Holotype, male, BRA-
NEW SPECIES
ZIL: Rio Grande do Sul, Arroio Arapua, 19
Gries Sse Ie: 1G)
Dec. 1964, E Plaumann (DAVIS). The ho-
Description.(cid:8212)Male (holotype): Body lotype has 6 flagellomeres missing on one
length 12 mm; forewing length 10 mm. antenna.
Face (Fig. 3), punctures nearly contiguous, Etymology.(cid:8212)The name refers to the lig-
except on clypeus; clypeus with conical ulate hypopygium.
medial projection, narrowly trilobate api- Discussion.(cid:8212)The most distinctive fea-
cally, punctures 1-2 PD apart except for tures of this species are the clypeus with a
impunctate medial band; vertex greatly ex- single medial projection, the expanded ver-
panded behind hindocelli, posterior margin tex, and the aedeagus with well-developed
more than 1.5 midocellus diameters beyond dorsal and ventral lobes. In addition, an un-
hindocelli in frontal view; flagellomere I usual feature of ligulata is the sculpturing
twice as long as broad, flagellomere IT 2.3x X of the external surface of the paramere,
as long as broad; head densely punctate which is irregularly longitudinally grooved
with small, deep, nearly contiguous punc- with associated punctures. There is some
tures; thoracic punctures small but gener- similarity between ligulata and bidentata
ally 0.5 PD apart; propodeal punctures based on the configuration of the clypeus,
nearly contiguous; abdominal punctures be- ligulate hypopygium, and aedeagus. U. lig-
coming denser toward apex, tergum I punc- ulata differs considerably from other spe-
tures 1-2 PD apart, tergum V punctures cies of Upa due to the medially unilobate
nearly contiguous; hypopygium ligulate, clypeus, expanded vertex, and subtriangular
apically without emargination or angles; and sculptured parameres.
genital capsule (Fig. 16): paramere slightly
Upa longispina Kimsey,
curved and coarsely sculptured externally
NEW SPECIES
(Fig. 11); aedeagus with large dorsal lobe
(Fig. 1)
before apical loop and ventral lobes long
and lanceolate. Coloration: body, including Description.(cid:8212)Male (holotype): Body
antenna, black with yellow on: antennal length 14 mm; forewing length 12 mm.
lobes, lower eye margin yellow, small yel- Head with small, deep contiguous punc-
low spot on upper eye margin, mandibular tures; clypeus slightly concave in lateral
base yellow; clypeus ventral half yellow ex- view, apical margin tridentate; flagellomere
cept medially, vertex with lateral yellow I length 2.4 breadth; flagellomere II 2.8x
stripe, pronotum with transverse anterior as long as broad; vertex unmodified; pro-
yellow stripe, transverse sublateral one, and notum impunctate medially, dorsolaterally
lateral yellow spot; tegula medially yellow; punctures 1(cid:8212)3 PD apart; rest of thoracic no-
scutum with two small posterolateral yel- tal punctation, including propodeum, 0.5(cid:8212)1
low spots; scutellum medially yellow; PD apart; propodeal punctures transversely
metanotum medially and laterally yellow; striatiform; tergum I punctures shallow and
forefemur apicoventrally yellow; midfemur elongate, widely separated and 1-5 PD
60 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
apart; tergum II punctures shallow and con- species without medial clypeal lobes or pro-
tiguous to 0.5 PD apart; terga III-V with jections, and is probably most closely re-
shallow, elongate contiguous punctures; ter- lated to tridentata. It can be distinguished
ga VI-VII punctures shallow, elongate and from that species by the darker coloration
0.5(cid:8212)1 PD apart, nearly impunctate medial- (having little or no pale banding on the ter-
ly; epipygium apically rounded; hypopy- ga), and the propodeal markings restricted
gium apicolaterally rounded and apically to a small yellow spot. In addition, the ven-
emarginate; genital capsule: paramere slen- tral aedeagal lobes are apically acute and
der, curved and essentially parallel-sided not capitate, protruding well beyond the
until abruptly tapered apically; aedeagal apex of the parameres.
column short, dorsal lobe originating at
Upa nasuta Kimsey,
middle of paramere, ventral lobe very slen-
NEW SPECIES
der and elongate, extending about half of
(Figs. 1, 6)
length beyond apex of paramere. Color
black, with yellow on: clypeus, except me- Description.(cid:8212)Male (holotype): Body
dially, and dorsal and apical margins yel- length 12 mm; forewing length 10 mm.
low; antennal lobes yellow; inner and outer Face (Fig. 6), punctation contiguous, small
eye margins yellow; yellow between ocelli; and deep, only slightly less dense on gena
mandible medially yellow; transverse band and clypeus; clypeal apex weakly trilobate,
across vertex and along gena yellow; pro- with projecting medial ridge terminating in
notum with transverse yellow band on pos- bidentate apex just above clypeal apex; fla-
terior margin; scutal lateral margin yellow; gellomere I 2.4 as long as broad; flagel-
scutellum anterolaterally yellow, with two lomere II length 2.9X breadth; vertex un-
small medial yellow spots; metanotum me- modified pronotal punctures 1(cid:8212)3 PD apart;
dially and anterolaterally yellow; mesopleu- scutal punctures 0-1 PD apart; scutellar
ron with small dorsal and medial yellow punctures 2(cid:8212)3 PD apart; propodeal punc-
spots; propodeum with small sublateral yel- tures 1-2 PD apart with impunctate medial
low spot and yellow spot anterior to spira- stripe; tergum I nearly impunctate, punc-
cle; fore- and midcoxae anteriorly yellow, tures 3-6 PD apart; tergum II punctures
hindcoxa with small yellow dorsal stripe; elongate and 1 PD apart; terga III-V punc-
terga and sterna IIJ-IV with small antero- tures 0.5 PD apart; terga VI(cid:8212)VII punctures
lateral yellow spot; tergum I with thin pos- shallow and elongate, 0.2(cid:8212)0.5 PD part; ter-
terior yellowish orange line, tergum II pos- gum VII with broadly impunctate medial
teromedially yellowish orange; sterna [(cid:8212)II stripe; epipygium apically slightly rounded;
medially yellowish orange; femora dark hypopygium apically linear with apicome-
brown shading to orange and yellow; tibiae dial emargination; genital capsule similar to
and tarsi orange; tegula brown. Wing veins tridentata (as in Fig. 13). Body black with
brown; membrane yellow. yellow on: clypeus, except ventral and dor-
Female unknown. sal margins; mandible medially yellow; an-
Etymology.(cid:8212)The species name refers to tennal lobes yellow; inner eye margin yel-
the elongate ventral lobes of the aedeagus. low, with yellow line around gena and post-
Type material.(cid:8212)Holotype, male, BRA- vertex; pronotum anterior and posterior
ZIL: Sao Paulo, H. Florestal, J. Land (SAO margins (broken medially), and laterally
PAULO). The holotype is missing: one ul- yellow; propleuron medially yellow; meso-
timate midtarsomere, one antenna and the pleuron medially yellow; scutal postero-
apical flagellomere on the other antenna. medial spot and two spots on lateral margin
Paratype, 1 male, Sao Paulo, Cantareira, yellow; scutellum medially and anterolat-
Coher (DAVIS). erally yellow; propodeum with large U-
Discussion.(cid:8212)Upa longispina is another shaped yellow mark extending from spira-
VOLUME 98, NUMBER 1 61
cle to hindcoxa and two submedial oblique contiguous; clypeus apically trilobate, me-
yellow lines; terga I-V transverse posterior dially with two widely separated projec-
yellow band, broken medially, with inset tions; flagellomeres I and II length 2.6
dark transverse spot sublaterally; tergum I breadth; vertex unmofied; pronotal punc-
with yellow lateral line; segments VI(cid:8212)VIII tures 1(cid:8212)2 PD apart laterally, impunctate
black; sternum I, yellow except laterally medially; scutal punctures 0O(cid:8212)0.5 PD apart;
and orange posteriorly; sterna II-IV yellow, mesopleural punctures contiguous; scutellar
except posteromedially black and orange punctures 0.5(cid:8212)1 PD apart, impunctate me-
peripherally; fore and midcoxae anteriorly dially; propodeal punctures contiguous and
yellow; hindcoxa with two oblique dorsal transversely striatiform, with impunctate
stripes yellow; femora ventrally yellow; tib- anteromedial triangular area; tergum I
iae and tarsi yellowish orange yellow; teg- punctures shallow and 1(cid:8212)3 PD apart; terga
ula transparent yellowish brown; flagellum II-VI punctures 0.5 PD apart; tergum VII
reddish orange ventrally. Wing veins yel- punctures large, shallow, elongate and 0.5
lowish brown; membrane slightly tinted. PD apart, impunctate medially; epipygium
Paratype males: vary in body length 11(cid:8212) apically subtruncate; hypopygium apically
14 mm, forewing length 9-11 mm; and ex- medially notched or bidentate; genital cap-
tent of yellow markings, with the medial sule (Fig. 14): paramere curved and apical-
yellow spots on the scutum and scutellum ly tapering in lateral view, inner surface
often reduced or absent; clypeal projection only slightly curved around aedeagus (Fig.
can be strongly bituberculate or almost api-
17); aedeagus elongate and slender with
cally truncate, the apical clypeal margin
small angle before short apical loop, ventral
with strong medial lobe and almost no sub-
lobes short and apically rounded. Colora-
medial ones, or clearly trilobate.
tion: body black with yellow on: clypeus,
Female unknown.
except dorsal and ventral margins and with
Type material(cid:8212)Holotype, male, BRA-
two yellow bars under medial projection;
ZIL: Sao Paulo, Serra da Bocaina, S. J. Bar-
mandibular basal spot yellow; lower inner
reiros, 13-17 Jan. 1969, Porter and Garcia
and outer eye margins yellow, small yellow
(DAVIS). The holotype is missing the api-
spot on upper eye margin; vertex with sub-
cal four tarsomeres on one midleg. Para-
medial yellow stripe; pronotal anterior ca-
types: 17 males, same data as type (DAVIS,
rina, medially located sublateral stripe, and
SAO PAULO).
lateral spot yellow; scutum with tiny yellow
Etymology.(cid:8212)This species name refers to
medial spot and lateral margin yellow;
the nose-like clypeal projection.
mesopleuron with dorsal and medial yellow
Discussion.(cid:8212)Several features of this
spots; tegular anterior margin yellow; scu-
species are unusual and diagnostic, includ-
tellum and metanotum with large medial
ing the bicolored flagellum, and apically bi-
and smaller dorsolateral yellow spots; pro-
lobate medial projection on the clypeus.
podeum with large submedial yellow bands;
The male genital capsule closely resembles
forecoxa with apical yellow spot; mid- and
that of tridentata with elongate and some-
hindcoxae with dorsal yellow stripe; fore-
what capitate ventral aedeagal lobes and
and midfemora with ventral yellow stripe;
hook-like dorsal lobe.
hindfemur ventrally yellow, dorsobasally
Upa porteri Kimsey, dark brown, apically orange; tibiae and tarsi
NEW SPECIES orange; terga I-IV with yellow subapical
(Figs. 1, 2, 4, 7, 14, 17) bands; tergum II(cid:8212)VII dark brown; sternum
Description.(cid:8212)Male (holotype): Body I medial spot; sterna II-III brown, with sub-
length 11 mm; forewing length 9.5 mm. medial yellow band; sternum IV(cid:8212)VII
Face (Fig. 2), punctures deep, small and brown. Wing veins brown, with orange stig-
62 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON
ma; marginal cell brown-tinted; rest of strongly curves around the aedeagus, al-
wing membrane lightly brown-tinted. most enclosing it in dorsal view (Fig. 18).
Female: Body length 9 mm. Vertex with However, females of these two species are
large ovoid pit (Fig. 4); genal region ap- very different. In female porteri the pron-
pearing impressed; pronotum (Fig. 7) with otal disk is constricted anteriorly (not trun-
elongate (cid:8220)(cid:8216)neck(cid:8217)(cid:8221)(cid:8217) region, disk subovoid, cate as in impressiceps), the head is con-
rounded laterally and narrowest anteriorly, stricted across the genae, tergum VI is pro-
elevated above neck by weakly projecting duced into a medial V-shaped process (not
bilobate anterior margin, somewhat im- unciform, as in impressiceps), and sternum
pressed sublaterally; propleura bulging lat- V is armed with three acute teeth on either
erally on either side of pronotal neck in dor- side of terminalia (simple in the other spe-
sal view; propodeum with long dorsal sur- cies).
face in lateral view, posterior surface gently
Upa tridentata Kimsey,
convex; tergum II with two transverse ridg-
NEW SPECIES
es and rugosopunctate between; tergum V
(Figs. 1, 5, 9, 10, 13)
posteromedially emarginate with small me-
dial tooth; tergum VI highly reduced later- Description.(cid:8212)Male (holotype): Body
ally, medially produced into a ventrally V- length 12 mm; forewing length 10 mm.
shaped bilobate structure; sternum V ven- Face (Fig. 5) with small punctures 1 PD
trally emarginate, projecting laterally into apart; clypeus gently convex in lateral view,
three acute teeth; sternum VI small with apical margin tridentate; flagellomere I
broadly V-shaped apical lip. Body dark length 2.3 breadth; flagellomere II 2.8X
brown, with yellow markings on head (Fig. as long as broad; vertex unmodified; meso-
3), pronotum with two yellow spots on pos- notal punctures 2(cid:8212)3 PD apart; propodeum
terior margin; scutum with transverse yel- polished and sparsely punctate, 3-5 PD
low band; tergum I with transverse anterior apart or more; tergum I nearly impunctate,
yellow band. punctures becoming denser and very shal-
Type material.(cid:8212)Holotype, male, AR- low toward apex of gaster; hypopygium ta-
GENTINA: Corrientes, Las Marias, near pering apically, apex sharply bidentate (Fig.
Gobernador. Virasoro, Sept. 1971, C. Porter 9); epipygium apically rounded; genital
(GAINESVILLE). The holotype is missing capsule (Fig. 13): paramere slightly curved
the ultimate tarsomere on one midleg. Para- and tapering apically (Fig. 10); aedeagus
type female on same pin as holotype male, with large dorsal lobe followed by deep
therefore with same data (GAINESVILLE). notch before apical loop, ventral lobes slen-
Etymology.(cid:8212)This species is named after der, elongate and subcapitate apically. Color
the collector, Charles Porter. black, with yellow on clypeus, except dor-
Discussion.(cid:8212)Upa porteri closely resem- sal and apical margins; antennal lobes yel-
bles bidentata and impressiceps; all three low, along inner and outer eye margins yel-
have the same clypeal modifications, low; yellow between ocelli; mandible yel-
strongly curved paramere in lateral view, low medially; yellow band across vertex
and relatively similar coloration. Addition- and along gena; pronotum with lateral yel-
ally, porteri and impressiceps have an api- low spot and transverse yellow band on an-
cally emarginate hypopygium, and long terior carina and posterior margin; scutum
slender aedeagal column with reduced dor- lateral margin yellow; scutellum anterolat-
sal and ventral lobes. U. porteri males erally yellow; metanotum medially and an-
strongly resemble those of impressiceps. terior margin yellow; mesopleural dorsal
They can be distinguished by the dorsally and medial spots yellow; propodeum with
flat epipygium (strongly concave in impres- large U-shaped sublateral yellow spot and
siceps), and in impressiceps the paramere one anterior to spiracle; coxae ventrally yel-
VOLUME 98, NUMBER 1 63
low, hindcoxa also with oblique dorsal yel- (female on same pin is a species of Dolli-
low stripe; terga I-IV posterior band and chothynnus); 1 male: Sao Paulo, Santo, San
lateral edge yellowish orange; sterna I-IV Vicente, Nov. 1956 (LOS ANGELES); 1
medially yellowish orange; segments V(cid:8212) male: (cid:8220)(cid:8216)Brasilia,(cid:8217)> Mus. Drews. (COPEN-
VII black; femora dark brown shading to HAGEN); 2 males: Bahia, Encruzilhada,
orange and yellow; tibiae and tarsi orange; Nov. 1972 and 1974, M. Alvarenga
tegula orange. Wing veins orange; mem- (PITTSBURGH, COLLEGE STATION); 1
brane yellow. male: Minas Gerais, Nov. 1972 (OTTA-
Paratype males vary in body length 12-(cid:8212) WA).
14 mm, forewing length 10(cid:8212)11 mm, and to Etymology.(cid:8212)The name refers to the tri-
some extent coloration. Coloration varies dentate clypeal margin.
considerably in extent but not pattern, with Discussion.(cid:8212)The structure of the male
the clypeus mostly yellow to nearly all clypeus, hypopygium and genital capsule
indicate a close relationship with Jongi-
black, scutum with small yellow spot in
spina, and less so nasuta, as discussed un-
one, tergal bands III and IV lack banding.
der those species.
Two of these specimens appear discolored
and somewhat bleached, probably due to
ACKNOWLEDGMENTS
how they were preserved.
This study was made possible by all the
Female unknown.
individuals and collections who loaned me
Type material(cid:8212)Holotype, male, BRA-
specimens, and by National Science Foun-
ZIL: Rio de Janeiro, Mury, Nova Friburgo,
dation Research grant No. BSR-9107479.
Dec. 1975, Gred & Guimaraes (SAO PAU-
LO). The holotype is missing the ultimate LITERATURE CITED
tarsomere on one midleg. Paratypes, 1
Genise, J. and L. S. Kimsey. 1991. New genera of
male: same data as type, except Dec. 1976 South American Thynninae. Psyche 98: 57-69.