Ommatius pulcher (Engel)

Scarbrough, Aubrey G., 2008, New Ommatius Wiedemann from the Americas with two new species groups, keys, and taxonomic notes (Diptera: Asilidae), Insecta Mundi 2008 (32), pp. 1-14 : 8-11

Ommatius pulcher (Engel)

Fig. 4, 33-41

Emphysomera pulchra Engel, 1885: 146 . Syntype m, type locality Brazil, Minas Gerais, São Poão del Rei

Distr.; Hull 1962: 437.

Ommatius pulchra (Engel) . Curran 1928:1. Combination

Ommatius pulcher (Engel) , Martin and Papavero 1970: 60. Catalogue, emend.

Redescription, male. Body 8.3-11.0 mm, wing 6.2-8.3 mm. Body dark brown. Head: Face bright yellow tomentose, setae short and sparse dorsally, more abundant and longer on ventral 1/3-1/2; 2-4 thin, brown bristles or setae on dorsal l/3; face at antennae narrow, 1/5-1/6 as wide as head. Antennae, frons and ocellar tubercle blackish setose, occasionally 1-2 yellow setae below scape. Frons brown or reddish-brown tomentose. Flagellum short, 1/4 longer than wide. Palpus and proboscis yellowish setose. Occiput pale yellowish tomentose dorsally, grading to white ventrally with similarly colored setae; 3-6 dark brown moderately thick postocular bristles per side dorsally, 3-4 strongly proclinate on apical 1/3.

Thorax: Pronotum brownish-gray tomentose, vestiture pale. Scutum with wide median stripe and two lateral spots, dark brown tomentose, yellow or yellowish-gray tomentose laterally and in transverse grooves, prescutellum grayish tomentose; setae sparse, largely brown, yellow laterally; bristles dark brown, 4 laterals and 3 dorsocentrals, latter sometimes weak and yellowish. Scutellum grayish tomentose, setae sparse, pale; marginal bristles absent. Pleura yellowish-grey or gray tomentose, setae and bristles pale, katatergal bristles sometimes dull brownish-yellow. Halteres yellow, knob slightly brownish-yellow.

Wing (Fig. 4): Yellowish, darker anteriorly with dense microtrichia; costal margin straight, not dilated, vein C not noticeably thickened. Crossvein r-m at apical 1/3 of cell d; base of cell r 4 just beyond d. Base of cell m 1 narrow, about 1/3 as wide as cell at basal 1/3, preapical constricted just before wing margin. Cell r 3 pointed apically.

Legs: Coxae yellow to yellowish gray tomentose, vestiture largely thin and yellowish; hind coxa sometimes with 1-2 black bristles anteriorly. Femora largely brownish-yellow, usually dark brown on apical 1/3-1/2 or 3/4 anteriorly and dorsally; setae pale ventrally, long below anterior two femora, bristles dark brown or black; middle femora with thin preapical dorsoposterior bristle, anteroventral bristles absent, bristly setae usually yellow, 1 or 2 sometimes dark brown; hind femora with 7-10 anteroventral bristles; 3-5 posteroventral bristles present, usually 1-2 basally and 3-4 apically with wide bare space medially; hind femora swollen, 3.1- 4.0 times longer than wide. Tibiae largely yellow with slight tint of brown, especially anteriorly, narrow apex of each tibia brown; bristles largely brown, those laterally on anterior two tibiae yellow; hind tibiae with short spur-like apically. Basal tarsomere of all tarsi yellow, apex of each narrowly brown; bristles mostly black, 4 yellow bristles on fore tarsi. Abdomen: Clavate, about 1/4 wider apically than at junction of segments 2-3; largely yellowishgray to whitish tomentose with pale setae; tergites largely brown tomentose dorsally with brown setae.

Figure 24-30. Male terminalia of Ommatius normus Terminalia (Fig. 33-39): Dark reddish-brown or Curran; 24-26. Lateral, dorsal and ventral views; 27. Left blackish. Epandrium narrowed along ventral mar- gonostylus; 28-29. Aedeagus, dorsal and lateral views; gin to apex, apices turned inward, often overlap- 30. Left side of the ventral lamella, ventral view. ping medially, apical margin round in dorsal view; 2-3 short, thick, brown bristles laterally, about twice as long as surrounding setae. Ventral lamella with ventrolateral process produced moderately, visible in lateral view. Gonostylus narrow apically, somewhat angled anteriorly. Each gonocoxite with 3 prominent denticles along inner margin. Aedeagus sheath wide in dorsal view, horizontal distiphallus tubular, thick in cross section. Hypandrium triangular anteromedially; sparse bristly setae medially.

Female. Differences include: body 9.6-10.8 mm, wing 6.5-10.5. Head: Antennae entirely dark brown setose; face at antennae 1/4.6-1/5.6 as wide as head. Legs: Hind femora not noticeably swollen, 5-6 times longer than median width; 1 black or yellow posteroventral bristle present basally, 2 or 3 apically. Hind tibiae without spur-like bristle apically. Abdomen: Only slightly clavate, never as pronounced as in male.

Terminalia (Fig. 40-41): Tergite 9 short medially in dorsal view, about 1/7 as long as cercus. Medioapical margin of sternite 8 produced with V-shaped row of l long thin bristles medially. Spermathecae tubular, surface annulate, with constrictions before apical 1/2, latter much wider than constriction area on basal 1/2; lateral spermatheca slightly pointed, median spermatheca slightly longer, apex more rounded.

Type material examined. BRAZIL: (syntypes, O. pulchra : 1 m, 2 f, ZSMN) .

Additional specimens. BRAZIL: Mangabeira , Alagoas / x-xi.1952 / C.A. Camargo (1 f, MZSP) . D.F. Brazilia / L. Paranoa / 4-5.i.1974 / L. Knutson (2 m, 2 f, NMNH) ; Roadside Fed. / Dist. Goias St. near / Gadelha Farm / 25.iv.1972 / L. Knutson (1 f, NMNH) ; Goiás, Corumbá / H. R. Levy xi.1945 (1 f, MZSP) ; Goiás, Corumbá / Monjolinho / xi.1945 / Barretto (1 m, 2 f, MZSP) ; Goiás, Annapolis / 5.i.1937 (1 f, MZSP) ; Minas Gerais / Bel Horizonte i.1956 / A.B. Machado (1 m, 1 f, MZSP) ; Varginha / M. Gerais, Brasil / i.1960 / Seabra E. Alvarenga (1 f, MZSP) ; Sete Lagoas / Brazil 4.v.1908 / S.D. Haseman / C.M. Acc. 3564 (1 f, CMNH) ; Diamantina, Minas / Gerais Brazil / 14-18.xi.1919 Cornell / University Exped (1 m, CUIC) ; Itatiaia 700 m / Est. do Bio. / 4.ii.1950 / W. Zikán ~ Ommatius pulchra / M. Carrera 1961 (1

m, MZSP); Barbacena / M. Gerais Brasil / ii.1962

m. Alvarenga (3 m, 19 f, DZUP); Maracaju, Mato

Grosso [do Sul] / Brasil, v.1937 / Serviço Febre /

Amarela MES BRAS. (1 f, MZSP); Tres Lagoas,

MT [do Sul] / Marg esprio Sucuriu / Faz Canãa

i.1967 / F. Lane (1 f, MZSP); M.G. [Mato Grosso]

Brazil / 15.iv.1989 / Oliveira, A.B. / Rice Crop 8 (1

f, MZSP); same data except Martins, A.B. (1 m,

MZSP); same data except 18.iii.1989 / Lagoa, M.H .

Rice Crop 5 (1 m, MZSP); IBIA MG Brasil / 11-

18.iii.1965 / C. Elias (1 m, DZUP); Passos - MG /

Brasil 5.xii.1963 / C. Elias (2 m, DZUP); Campo .

Figure 31-32. Spermatheca and ventral view of female (grasslands) Brasil / Mato Grosso Base Camp. / terminalia of Ommatius normus Curran. 12 o 50’S 51 o 45’W / 10-28.iii.1968 / B.E. Freeman

( BMNH); Paraná, Curitiba / i.56 / J. Lang (1 m,

MZSP); DPTo Zool. UF - Paraná / Chap. Gus Maraes - MT / (C.A. Buriti) / 08.xi.1986 / Pe. Moure and Gorayeb (1 f, DZUP); Curitiba - PR / Brasil 16.xi.1966 / C Ext.O.Z.UFP (1 f, DZUP); Paraná / Vila Vehla / 19.i.1969 / J. and L. Strange (1 f, IMLA); Paraná / Jaquarlaia / i.29.1974 / J.G. Rosen / F.C. Thompson / J.S. Moure (1 m, AMNH); same location except Vila Velha / 20.i.1974 (1 m, 3 f, AMNH); same location except 5.ii.1974 / J.G. Rosen / F.C. Thompson / J.S. Moure (3 m, 3 f, AMNH); same location except Andradas. 23.i.1974 (1 f, AMNH); Ponta Grossa PR / Brasil 12.xii.1966 / T.B. Mitchell (1 m, DZUP); Laranjeira da sul / PR- Brasil i.62 / S. Sakagami (1 f, DZUP); V. Velha, Brasil / PR, iii.1965 Moure / Mitchell Laroca (1 f, DZUP); Vila Velha PR / Brasil 21.xi.1965 / Mitchell- Moure (1 f, DZUP); Curitiba / [no date] / G. Kurowski / # 173 (1 m, DZUP); DPTo Zool. UF Paraná / RIB. PRETO - São Paulo / Brasil 31.x.1973 / Pe. Moure (1 f, DZUP); Sto [Santa] Catarina / Nova Teutonia / F. Plaumann (1 f, CASC). S. Paulo [São Paulo] / Americus / 11-14.i.1977 / L. Knutson (2 m, 8 f, NMNH); S. Paulo / Rio Claro / 14.i.1977, L. Knutson (1 f, NMNH); Rio Claro - SP / i.1977 / N. Papavero (2 m, 13 f, MZSP); same location / i.1941 / Pde. Pereira (7 m, 8 f, MZSP); São Paulo Ypiranga / 26-31.iii.1936, 3.iv.1936 / L. Morretes (5 m, MZSP); same location except iii.1946 / M. Carrera, E.F. Lane (1 f, MZSP); same location except 1.i.1940 / F. Lang (1 m, MZSP); São Paulo / St [Santo] Amaro, ii.1949, ii.1950 / J. Lang (3 m, 8 f, MZSP); São Paulo / Severinia / xii.1940 / A.G. Silva (15 m, 12 f, MZSP); São Paulo / M. das Cruses / M. Carrera / i.1939 (11 m, 4 f, MZSP); same location except ii.1940 (4 m, 3 f, MZSP); same location except iii.1940 (1 m, MZSP); same location except i.1939 M. Carrera, Lane, Pauialli (1 m, 1 f, MZSP); São Paulo / Gautapará / i.1945 / M. Carrera (2 f, MZSP); Mairipora, SP / Brasil / 4-13.i.1967 / C. Costa (1 f, MZSP); Est. Biol. Boraceia / Mun. [Municipalidade] Salesopolis, SP / Brasil i.1949 / M.P. Barretto (1 m, MZSP); São Paulo, Jundiai / i.1953 / M.A. V.A. (1 m, MZSP); São Paulo, Guaianales / ii.1950 / M. Carrera (1 m, MZSP); SP / Campinas / 24.i.1976 / R.M. Bohart (2 m, UCDC); São Paulo / Onda Verde Faz. / São Joâo / i.1946 F. Lane (2 m, one with abdomen missing, IMLA); Baueri, São Paulo Brasil / 3.ii.1958, 15.i.1966, 22.i.1967 / F. Lang (2 m, 1 f, MZSP); Faz. Monte Alegre / Ribeirão Piêto, SP / Brasil x.1953 / M.P. Barretto (1 m, 1 f, MZSP); São Paulo / Araraquara 17-18.i.1941 / M. Carrera (1 m, MZSP); São Paulo / Penkal xii.1920 (1 f, MZSP); São Paulo / Onda Verde / Faz. São Joao / i.1946 / F. Lane (2 m, 10 f, MZSP); R. Spitz coll. / Campinas i.1936 / Est. Goyas (2 m, 1 f, MZSP); São Paulo / Tamoio xii.1944 / M. Barretto (3 m, 5 f, MZSP); Batatais SP / Brasil ii.1946, x.1946 / Pe. Pereira (19 m, 25 f, MZSP); same location /colls. xii.1946 (1 m, 1 f, MZSP); Est. S. Paulo / Cajuru / Coqueiros ii.1947 / Barretto (2 m, 1 f, MZSP); Cassia Dos Coqueiros / Cajuru SP / Brazil iii.1955 / M. Barretto (1 f, MZSP); Goras, Campinas / Spitz Col xii.1935 (3 f, MZSP); Brasil: nr. Cosmopolis / São Paulo / 8.iv.1964 / C.E. and E.S. Ross (1 m, CASC); São Paulo / Andes / ii.1955 / M. Carrera (1 m, CASC); São Paulo / Onda Verde / Faz. São Joâo / i.1946 / F. Lane (1 f, CASC); S. Paulo - Ypiranga / iii.1940 M. Carrera / F. Lane (1 f, CASC); S. Paulo / x.? Sto. Amaro J. Lane (1 m, CASC); Campinas-Goyaz / Borgmeier et S. Lopes / xii.1935 ~ Ommatius pulchra / Eng. 8.37 Det H.S. Lopez (1 m, MZSP). PARAGUAY: Paraguari / Dept Ybycui (25km SE) / in Ybycui / National Park / 12-24.iv.1980 / P.J. Spangler (2 m, 1 f, NMNH); Paraq. Nac. / Cerro Coro / Departo Amamabay / 23.ii.1981 R.D. Cave Colr. (1 m, 1 f, NMNH).

Distribution. Brazil, Paraguay. Flight season,

October-May.

Remarks. In addition to the characters in the key,

O. pulcher is distinguished from congeners by the

wing venation and combined characters of the

terminalia (Fig. 4, 33-41). Engel described

Ommatius pulcher based on specimens from Minas

Gerais, Brazil and deposited in ZSMN. The three

syntypes of O. pulcher were sent to me for study

but were destroyed during transit. As many parts

as possible of the 3 specimens were placed in vials

and attached to the specimen pins. However, the

fragments are insufficient to diagnose the species.

Thus a specimen from Minas Gerais, Brazil, is des-

ignated NEOTYPE here to stabilize the name of

the species. The data labels below the neotype are

as follows: BRAZIL, Minas Gerais / 23.i.1974 / J.G.

Rosen / F.C.Thompson / J.S. Moure ~ NEOTYPE /

Ommatius pulcher (Schiner) / det. A. Scarbrough,

2007 (1 m, NMNH).