Altimyia boliviana, Couri, Márcia Souto, 2008

Couri, Márcia Souto, 2008, A new genus and species of Coenosiini from Bolivia (Diptera: Muscidae: Coenosiinae), Zootaxa 1879, pp. 57-60 : 58

Altimyia boliviana , sp. nov.

( Figs. 1–8 )

Type material: Holotype male: Bolivia, 24.xii.2002, 4– 5000 m, Cordillere (SMT).– Paratype female: same label data as holotype ( MNRJ)

Description. Coloration. Ground-colour dark brown. Frons and fronto-orbital plate velvet dark brown. Parafacial and gena dark brown with a very faint golden brown pruinosity in certain light. Ocellar triangle dark brown. Antenna and palpus dark brown. Mesonotum brown. Pleurae brown, with sparse grey pruinosity in certain light. Calypter whitish. Halter dark brown. Legs dark brown. Abdomen brown with grey pruinosity on lateral areas of tergites 3–5. Sternite 5 brown with grey pruinosity, the apices of the “U” arms yellow.

MALE. Body length: 4 mm.

Head. Male dichoptic; eyes separated at level of anterior ocellus by a space about one third of the head width. Palpus slender; proboscis with labellum reduced and prestomal teeth developed. Inner and outer vertical setae long. Ocellar setae long. Antenna with flagellomere one measuring about twice the length of pedicel and with pointed apex ( Fig. 1 ). Arista long, enlarged on its basal fourth and pubescent.

Thorax. Acrostichal pre-sutural setae differentiated, arranged in three pairs; dorsocentral setae 2:3, all long, the first presutural a little shorter than the second; intralars 1:2; postpronotals 3; presutural 1; supralar 1; post-supralars 2; intrapostalar seta developed. Prealar seta absent. Prosternum bare. Notopleuron with 2 similar setae. Katepisternals 1:1:1 forming an equilateral triangle and with short and fine setae on disc. Scutellum with a sub-basal and an apical pair of strong setae. Fore femur with complete rows of dorsal, posterodorsal, posteroventral and ventral setae. Claws and pulvilli short. Wing veins bare. Mid femur with 4 anteroventral and posteroventral setae on basal third and 3 pre-apical posterior setae. Mid tibia with 3 anterodorsal setae on middle third; 2 posterior setae on middle third and all surfaces with an apical seta, the ventral, anteroventral and posteroventral ones longer. Hind femur with irregular anterodorsal and anteroventral rows of setae, longer on apical half; posteroventral surface with about 8 long separate setae.

Abdomen. Tergites 1–4 with developed lateral setae on disc and apex, tergites 4 and 5 each with a discal and a marginal row of setae. Sternite 5 “U” shaped, with setae more numerous on inner margins, all of surface with microtrichia, denser on the tip of the arms ( Fig. 3 ).

Terminalia. Cercal plate and surstylus long, about the same length ( Figs. 4–5 ); phallic complex with tubular hypandrium ( Fig. 6 ).

FEMALE: Body length: 4.2 mm.

Similar to male.

Terminalia. Ovipositor long, with microtrichia on almost its full extent; cerci long and fine ( Figs. 7–8 ). Spermathecae as in Fig. 8 .

Figures

FIGURES 1 – 8. Altimyia boliviana, gen. & sp. nov. 1. Head of male, lateral view. 2. Hind tibia, anterior view. 3. Sternite 5. 4. Cercal plate and surstyli, dorsal view. 5. Cercal plate and surstylus, lateral view. 6. Phallic complex, lateral view. 7. Ovipositor, dorsal view. 8. Ovipositor, ventral view and spermathecae.