Curiosimusca, Rung & Mathis & Papp, 2005

Rung, Alessandra, Mathis, Wayne N. & Papp, László, 2005, Curiosimusca, gen. nov., and three new species in the family Aulacigastridae from the Oriental Region (Diptera: Opomyzoidea), Zootaxa 1009 (1), pp. 21-36 : 26

Curiosimusca , gen. nov.

Type species. Curiosimusca khooi , sp. nov., by present designation.

Diagnosis. Curiosimusca is distinguished from Aulacigaster by the following combination of characters: ocellar seta well developed ( Fig. 3 ) (minute in Aulacigaster ), anepisternal setae absent (present in Aulacigaster ); mesonotum with many scattered setulae (setulae fewer and in regular rows in Aulacigaster ), dorsocentral setae 0+1 (0+ 2 in Aulacigaster ); 1 pair of scutellar setae (2 pairs in Aulacigaster ); 3 katepisternal setae (2 in Aulacigaster ); a well­sclerotized cercus (membranous in Aulacigaster ).

Description. Adult: Coloration: Body predominantly dark brown to black; frons with anterior 1/4–1/3 yellowish to light brown; face often bearing a microtomentose stripe ( Fig. 2 ); wing typically infuscate, often with white spots on crossveins ( Figs. 5 , 11 , 15 ).

Morphology: Head: Head ratio between 0.5–1.1. First flagellomere round ( Figs. 3 , 9 ). Ocellar seta present, well developed ( Fig. 3 ). Peristomal vestiture consisting of strong setae following pseudovibrissal seta. Arista appearing bare.

Thorax: Anepisternum without posterior setae; katepisternum with 3 setae toward dorsal margin. Wing: Costal vein weakened (with breaks) at level of humeral and subcostal veins; vein R 2+3 elongate, costal vein ratio less than 0.09.

Abdomen: Male abdomen and terminalia: Sternites as wide as respective tergites. Epandrium as an inverted U with surstyli at ventral margin, partly fused to epandrium; male internal structures including a well­developed hypandrial bridge (dorsal extensions of hypandrium); distiphallus relatively membranous or partially sclerotized, minutely haired and resembling a brush apically. Female abdomen and terminalia: Cercus not strongly sclerotized; 3 sclerotized spermathecae.

Etymology. Curiosimusca is of Latin derivation and is a combination of “ curiosus, ” meaning odd, strange or curious and “ musca, ” meaning fly. The generic name is feminine.

Figures

FIGURES 15. Curiosimusca maefangensis, sp. nov. 16, Wing, dorsal view.

FIGURES 1–5. Curiosimusca khooi, sp. nov. 1, Habitus of male (Malaysia. Selangor: Genting Highlands; 03º24’N 101º48’E), lateral view. 2, Head, anterior view. 3, Head and thorax, lateral view (oc = ocellar seta; dc = dorsocentral seta; fr­ob = fronto­orbital seta; lvt = lateral vertical seta; mvt = medial vertical seta). 4, Head, anterodorsal view. 5, Wing, dorsal view.

FIGURES 9–11. Curiosimusca orientalis, sp. nov. 9, Head and thorax, lateral view. 10, Head, dorsal view. 11, Wing, dorsal view.