Agenamyia Albuquerque, 1953

Carvalho, Claudio José Barros De, Wolff, Marta, Haseyama, Kirstern Lica Follmann & Fogaça, João Manuel, 2023, Review of the endemic Neotropical genus Agenamyia Albuquerque (Diptera: Muscidae) with the description of new species from South America, Zootaxa 5346 (5), pp. 532-550 : 535

Key to species of Agenamyia Albuquerque

1 Male with a slight prolongation of the wing membrane between R 2 +3 and R 4 +5 and a strong prolongation of the wing membrane between R 4 +5 and M veins ( Fig. 13A ). Dark brown femora in both sexes................................................................................................... A. colombiana de Carvalho, Wolff & Fogaça sp. nov.

- Male without prolonged wing membranes ( Figs. 13B–C ). Yellowish femora in both sexes ( Fig. 8A ) or with yellowish parts ( Fig. 11A ). If female femora are dark brown, the ocellar triangle is entirely covered with silvery pruinosity.............. 2

2 First postsutural dorsocentral seta smaller than the other setae. Cercus with an almost parallel apex ( Fig. 9C )............ 3

- Three postsutural dorsocentral subequal setae. Cercus with divergent apex ( Fig. 3C )................................ 4

3 Vein M slightly curved before the tip of the wing. Tip of the wing with conspicuous cloudy brown spots ( Fig. 13B )................................................................... A. maculata de Carvalho, Wolff & Fogaça sp. nov.

- Straight vein M. Tip of the wing without a conspicuous brown spot ( Fig. 5C )....... A. exotica de Carvalho & Couri, 1992

4 Syntergite 1+2 translucid ( Figs. 6A, C ). Hind femur with two apical av setae. Cercus with several setulae. Very short distiphallus ( Fig. 7C ; Albuquerque, 1953: 521, fig. 11)....................................... A. fumipennis Albuquerque, 1953

- Syntergite 1+2 not translucid ( Fig. 11C ). Hind femur on av with three setae on apical half. Cercus with three pairs of setulae ( Fig. 12C ). Reduced distiphallus ( Fig. 12D ).......................... A. timida de Carvalho, Wolff & Fogaça sp. nov.

Figures

FIGURE 3. Agenamyia colombiana de Carvalho, Wolff & Fogaça sp. nov., male: sternite 5 and terminalia: (A) sternite 5; (B) epandrium, cercus and surstylus lateral view; (C) cercus, posterior view; (D) terminalia, lateral view; (E) terminalia, frontal view; (F) terminalia, dorsal view. Abbreviations: cerc—cercus, distph—distiphallus, epand—epandrium, epiph—epiphallus, hypd—hypandrium, hyprct—hypoproct, pgt—postgonite, phapod—phallapodeme, pregt—pregonite, sur—surstylus. Scale bars: 0.1 mm.

FIGURE 5. Agenamyia exotica de Carvalho & Couri, paratype male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal; (D) female, habitus, lateral. Scale bars: (A, C) 1 mm, (B) 500 µm, (D) 2 mm.

FIGURE 6. Agenamyia fumipennis Albuquerque, holotype male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal; (D) Labels. Scale bars: (A, C) 1 mm, (B) 500 µm,.

FIGURE 7. Agenamyia fumipennis Albuquerque, holotype male, slides: (A) abdomen; (B) wing; (C) terminalia; (D) epandrium, surstylus, and cercus; (E) sternite V; (F) label; (G) label. Scale bars: 0.5 mm.

FIGURE 8. Agenamyia maculata de Carvalho, Wolff & Fogaça sp. nov., male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal; (D) female, habitus, lateral. Scale bars: (A, C) 1 mm, (B) 500 µm, (D) 2 mm.

FIGURE 9. Agenamyia maculata de Carvalho, Wolff & Fogaça sp. nov., male: sternite 5 and terminalia: (A) sternite 5; (B) epandrium; (C) cercus; (D) terminalia, lateral view; (E) terminalia, frontal view; (F) terminalia, dorsal view. Scale bars: 0.1 mm.

FIGURE 11. Agenamyia timida de Carvalho, Wolff & Fogaça sp. nov., male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal. Scale bars: (A, C) 1 mm, (B) 500 µm.

FIGURE 12. Agenamyia timida de Carvalho, Wolff & Fogaça sp. nov., male: sternite 5 and terminalia: (A) sternite 5; (B) epandrium; (C) cercus; (D) terminalia, lateral view; (E) terminalia, frontal view; (F) terminalia, dorsal view. Scale bars: 0.1 mm.

FIGURE 13. Left wing, dorsal view. (A) Agenamyia colombiana de Carvalho, Wolff & Fogaça sp. nov., male; (B) Agenamyia maculata de Carvalho, Wolff & Fogaça sp. nov., male; (C) Agenamyia timida de Carvalho, Wolff & Fogaça sp. nov., male. Scale bars 1 mm.