Diplonevra

Corona, Emily M. & Brown, Brian V., 2005, The Central American species of Diplonevra Lioy (Diptera: Phoridae), Zootaxa 1050, pp. 21-38 : 36-37

Key to Males of Central American Diplonevra

1 Hind tibia with 3–5 anterodorsal setae; with 1 long, extremely thick, most posteroventral seta on right side of epandrium ( Figs. 20, 22 ) ....................................................... 2

­ Hind tibia without anterodorsal setae; epandrium without such thickened seta ( Figs. 21, 23–25 ) ..................................................................................................................... 3

2 Ventrobasal region of posterior face of hind femur with many short, thick setae ( Fig. 1 ); forelegs and halter dark brown; palpus brown....................... D. ereba new species

­ Ventrobasal region of posterior face of hind femur with several thin setae ( Fig. 3 ); forelegs yellow; halter yellow; palpus orange......................... D. goliatha new species

3 Posterior face of hind trochanter with several short, thick setae ( Figs. 4 , 12 ); base of posterior face of hind femur with relatively long setae (Figs. ##); posterior margin of right side of epandrium with long, subequal posteroventral setae ( Figs. 23, 25 )....... 4

­ Posterior face of hind trochanter lacking short, thick setae ( Figs. 2, 5 , 7, 9, 10 ) except for 1–3 longer setae ventrally; base of posterior face of hind femur with relatively short setae (e.g. Figs. 5 , 7 ); posterior margin of right side of epandrium with shorter setae ...................................................................................................................................... 5

4 Ventrobasal region of posterior face of hind femur with process containing 3 long, thick setae and several shorter setae ( Fig. 4 ); costal sector 2 much longer than 3 (mean costal sector ratio 5.7:2.3:1.0) ( Fig. 17 ) ............................. D. hypermeka new species

­ Ventrobasal region of posterior face of hind femur with process containing two thick setae and one much thinner seta at apex ( Fig. 12 ); costal sector 2 subequal in length to sector 3 (mean costal sector ratio 3.3:1.1:1.0) ( Fig. 19 ).... D. truncatiseta new species

5 Cercus yellow, rarely yellowish­brown; ventral region of posterior face of hind trochanter with 2 (rarely 3) long, thick setae ( Fig. 9 ) and dense, extremely fine setae

present in lateral region ( Fig. 5 , ls) .. .......................................... D. setigera (Malloch) ­ At least basal two­thirds of cercus dark brown; ventral region of posterior face of hind trochanter with 1 long, thick seta ( Fig. 2 ) and lacking setae in lateral region ................ ................................................................................................... D. gnoma new species

Figures

FIGURES 20 – 25. Diplonevra spp. Male terminalia, right lateral.

FIGURES 1 – 6. Diplonevra spp. Basal region of posterior face of hind tibia and trochanter (scanning electron micrographs). Fig. 1. D. ereba new species. Fig. 2. D. gnoma new species. Fig. 3. D. goliatha new species. Fig. 4. D. hypermeka new species. Figs. 5 – 6. D. setigera (Malloch), Zurquí de Moravia, Costa Rica. Abbreviations: dms – dorsomedial setulae of trochanter; ls – lateral setulae of trochanter.

FIGURES 7 – 12. Diplonevra spp. Basal region of posterior face of hind tibia and trochanter (scanning electron micrographs). Figs. 7 – 8. D. setigera (Malloch), second specimen from Zurquí de Moravia, Costa Rica. Fig. 9. D. setigera (Malloch), Placerita Canyon, California, USA. Figs. 10 – 11. D. setigera (Malloch), Petropolis, Brazil. Fig. 12. D. truncatiseta new species.

FIGURES 14 – 19. Diplonevra spp. Left wings.