Cacoplox griseatus Hull, 1970

Lopes, Daniele De Araujo & Lamas, Carlos José Einicker, 2004, Taxonomic status of Cacoplox griseatus Hull, 1970 with redescription of the genus and type species (Diptera, Bombyliidae, Bombyliinae, Bombyliini), Zootaxa 429 (1), pp. 1-7 : 3-6

Cacoplox griseatus Hull

Figs. 1–6

Cacoplox griseata Hull, 1970: 163 ; Hull, 1973: 130–131; Bowden, 1985: 103; Evenhuis, 1991: 24. Dischistus (Cacoplox) griseata: Hall, 1976: 44–45 .

Dischistus (Cacoplox) griseatus: Painter, Painter & Hall, 1978: 8 .

Cacoplox griseatus: Evenhuis & Greathead, 1999: 143 .

Male

Body length: 14.7–18.7mm; wing length: 10.3–14mm.

Head: front dark brown with dark brown hairs; antenna with a conical hump at their base ( Fig. 1 ); face dark brown with yellowish­white and dark brown hairs; orogenal cup polished, light brown and gray pollinose; palpus light brown with yellowish­white and scattered brown hairs; proboscis 5 times longer than palpus, projecting beyond the oral margin by 5/6 of its length; labellum long, 1/6 of the length of the proboscis; antennae with scape and pedicel cylindrical, dark brown with gray pollinosity, yellowish­white hairs and scattered dark brown bristles on the dorsal surface; scape twice as long as pedicel; flagellum dark brown, similar in length to scape and pedicel together; three flagellomeres; ocellar tubercle dark brown, darker on margin, with gray pollinosity and dark brown bristles; occiput dark brown with gray pollinosity, long yellowish­white hairs and short dark brown bristles.

Thorax: mesonotum dark brown with long yellowish­white hairs laterally and scattered short yellowish­white ones dorsally; scutellum, on posterior margin with long yellowish­white hairs and dark brown bristles; halter light brown with yellow knob; calypter with long yellowish­white hairs on margin; metepisternum with white hairs on posterior upper corner; katepisternum with long yellowish­white hairs; anepimeron bare; anepisternum with long yellowish­white hairs mixed with dark brown ones; notopleuron with long yellowish­white hairs; postalar callus with five strong dark brown bristles; supra alar callus with yellowish­white and scattered dark brown hairs.

Legs: coxa I dark brown, gray pollinose with yellowish­white and long dark brown hairs; coxa II dark brown, gray pollinose with long light brown hairs on all surfaces and also dark brown ones ventrally; coxa III dark brown, gray pollinose, covered with yellowish­white and dark brown hairs; femur I dark brown with yellowish­white scales, yellowish­white hairs and dark brown bristles; femur II dark brown with yellowish­white scales, yellowish­white hairs and dark brown bristles longer on basal half of the ventral surface; femur III dark brown with yellowish­white scales, yellowish­white hairs and strong, short dark brown bristles on apical third of the anteroventral surface and fine and long ones on basal 2/3 of the ventral surface ( Fig. 2 ); tibia I light brown, with a few dark brown bristles and a pair of strong apical bristles; tibia II light brown, with dark brown bristles and two pairs of strong apical bristles; tibia III light brown, with dark brown bristles; pretarsus long, with bristles and short dark brown hairs on all segments; claws light brown, with dark brown apex; pulvilli light brown, a little shorter than the claws.

Wing: hyaline with costal area light brown; two submarginal and four posterior cells; r­m crossvein at apical fourth of discal cell; anal cell elongated and open on wing margin by half the length of the r­m crossvein.

Abdomen: dark brown, covered with mixed long dark brown and yellowish­white hairs. The dark brown hairs mainly placed on apex of the tergites and the yellowish­white ones at the base.

Genitalia: gonocoxa broad in lateral view, with round apex, covered with bristles on apical half, stronger at the superior margin; gonostylus hook­shaped, with a central concavity, with short, strong bristles in the apical 1/3 of the ventral surface; distiphallus long, surpassing apex of posterior gonocoxal process; lateral aedeagal apodeme not surpassing gonocoxal margins ( Fig. 3 ); ejaculatory apodeme with round margin in lateral view and a small projection on the inferior margin ( Fig. 5 ).

Female

Body length: 15–18.2mm; wing length: 11–14mm.

Similar to the male, except for:

Spermathecae: furca “M”­shaped, with lateral processes enlarged and hook­like apically ( Fig. 4 ); spermathecae oval, without membrane around the base; spermathecal ducts wide, 4 times longer than spermathecae; sperm pump placed on apical 1/3 of the spermathecal duct, 2/3 of the spermathecae in length; sclerotized collars with irregular projections on the edge; spermathecal ducts fused at the base to form a short common spermathecal duct ( Fig. 6 ).

Distribution

Argentina, Jujuy. Chile, Antofagasta Province (Anãs, Catarape, Linoza, Púrica and Tumbre) and Coricó Province (Coigo).

Material examined

ARGENTINA, Jujuy: Cincel river (3500–3700), 10.XI.1970, 1 male ( MZSP) . CHILE, Antofagasta Province: Anãs , 9.XI.1969, 1 female, F. Salgado leg. ( MZSP); Catarape, II.1969, 4 females and 3 males, F. Salgado leg. ( MZSP); Tumbre, I.1969, 1 male , 9.XI.1969, 1 male, F. Salgado leg. ( MZSP) .

Figures

FIGURES 1–4. Cacoplox griseatus: 1. Head, lateral view; 2. Femur III; 3. Male genitalia, dorsal view; 4. Furca.

FIGURES 5–6. Cacoplox griseatus: 5. Male genitalia, lateral view; 6. Spermathecae.