Enlinia, ALDRICH, 1933 FROM

Runyon, Justin B. & Pollet, Marc, 2018, Enlinia Aldrich, 1933 of Mitaraka, French Guiana (Diptera: Dolichopodidae), Zoosystema 40 (19), pp. 453-468 : 467

KEY TO SPECIES OF ENLINIA ALDRICH, 1933 FROM FRENCH GUIANA (MALES)

1. Hind margin of wing with distinct, projecting lobe near apex of vein CuA 1 ( Fig. 3 ); hind tibia with anteroventral row of large, modified setae ( Figs 2 , 4B ) ...................................................................................................... 2

— Wing without distinct, projecting lobe near apex of vein CuA 1; hind tibia without row of large, modified setae .... 3

2. Cerci long with large setae at apex that extend anteriorly to base of abdomen ( Fig. 4E ) ............. E. bova n. sp.

— Cerci short, extending anteriorly only to sternite 4 ( Fig. 1E ) .............................................. E. loboptera n. sp.

3. Hind tibia with 5 stout posterodorsal setae (length greater than width of tibia) along full-length (known from female, but males should key here too) ............................................... Enlinia . sp. GF-007 ( E. armata group)

— Hind tibia with at most 2 weak dorsal setae ................................................................................................. 4

4. Wing with a small brown spot midway between veins R 4+5 and M 1 ( Fig. 9 ); abdominal sternite 2 with linear rod-like armature ( Fig. 8D ) ........................................................................................... E. mitarakensis n. sp.

— Wing without brown spot; abdominal sternite 2 without armature (armatures, if present, on sternites 3 and 4) ......................................................................................................................................................... 5

5. Antenna with first flagellomere relatively enlarged and drawn out to narrow point ( Figs 5 , 6A ); front tarsus unmodified .................................................................................................................... E. colossicornis n. sp.

— Antenna with first flagellomere short and blunt (as in Fig. 10A ); front tarsus modified ............................... 6

6. Wing with hind margin sinuous and fringed with slightly longer than normal hairs ( Fig. 12 ); mid femur with 4 large, black ventral setae near base ( Fig. 11C ); abdominal sternite 4 with accessory lobes ( Fig. 11D, E ) ...... ............................................................................................................................................... E. dalensi n. sp.

— Wing with hind margin evenly rounded and without long hairs ( Fig. 10E ); mid femur without large, black ventral setae; abdominal sternites unmodified, without accessory lobes ( Fig. 10D ) .............. E. touroulti n. sp.

Figures

FIG. 3. — Enlinia loboptera n. sp., ♂ wing. Scale bar: 0.5 mm.

FIG. 2. — Enlinia loboptera n. sp., ♂: hind tibia and hind tarsus, dorsal view. Scale bar: 0.5 mm.

FIG. 4. — Enlinia bova n. sp., ♂: A, antenna, lateral view; B, hind leg from tip of coxa, anterior view; C, fore leg, posterior view; D, tarsomere 1 of fore leg, ventral view (anterior is toward bottom of page); E, tip abdomen and terminalia, right lateral view. Abbreviations: cerc, cerci; S4, abdominal sternite 4. Scale bars: A, D, 0.1 mm; B, C, E, 0.5 mm.

FIG. 1. — Enlinia loboptera n. sp., ♂: A, fore tibia and tarsus, dorsal view; B, apex of fore tibia and tarsomere 1, ventral view; C, mid tibia and tarsomere 1, dorsal view; D, apex of mid femur, tibia, and tarsomere 1, anterior view; E, tip of abdomen and terminalia, left lateral view. Abbreviations: cerc, cerci; S4, abdominal sternite 4. Scale bars: A, C-E, 0.5 mm; B, 0.1 mm.

FIG. 9. — Enlinia mitarakensis n. sp., ♂ wing. Scale bar: 0.5 mm.

FIG. 8. — Enlinia mitarakensis n. sp., ♂: A, antenna, lateral view; B, apex of fore tibia and tarsus, ventral view; C, mid trochanter, femur, and tibia, anterior view; D, abdomen and terminalia, right lateral view. Abbreviations: cerc, cerci; S2, abdominal sternite 2. Scale bars: A, 0.1 mm; B, 0.3 mm; C, 0.4 mm; D, 0.5 mm.

FIG. 5. — Enlinia colossicornis n. sp., ♂ head and antenna, lateral view. Scale bar: 0.3 mm.

FIG. 6. — Enlinia colossicornis n. sp.: A, ♂ antenna, lateral view; B, ♀ antenna, lateral view; C, ♂ apex of hind femur, tibia, and hind tarsomere 1, anterior view; D, tip of ♂ abdomen and terminalia, right lateral view. Abbreviations: cerc, cerci. Scale bars: A, B, 0.1 mm; C, 0.5 mm; D, 0.3 mm.

FIG. 10. — Enlinia touroulti n. sp., ♂: A, antenna, lateral view; B, fore tibia and tarsus, ventral view; C, mid tibia and tarsomere 1, ventral view (anterior is to the left); D, abdomen and terminalia, right lateral view; E, wing. Abbreviations: cerc, cerci. Scale bars: A, 0.1 mm; B-D, 0.25 mm; E, 0.5 mm.

FIG. 12. — Enlinia dalensi n. sp., ♂ wing. Scale bar: 0.5 mm.

FIG. 11. — Enlinia dalensi n. sp., ♂: A, tip of fore tibia and tarsus, dorsal view; B, fore femur, anterior view; C, mid trochanter and femur, posterior view; D, tip of abdomen and terminalia, right lateral view; E, tip of abdomen and terminalia, ventral view. Abbreviations: cerc, cerci; S3, abdominal sternite 3; S4, abdominal sternite 4. Scale bars: 0.25 mm.