Microphorella, FROM

Shamshev, Igor V. & Grootaert, Patrick, 2004, Descriptions Of Four New Species Of The Genus Microphorella Becker (Diptera: Empidoidea, Microphoridae, Parathalassiini) From Southeast Asia And New Guinea, With Notes On The Relationships Within The Genus, Raffles Bulletin of Zoology 52 (1), pp. 45-58 : 46

KEY TO THE SPECIES OF MICROPHORELLA FROM SOUTHEAST ASIA AND AUSTRALIA

1. Male ........................................................................................ 2

– Female (unknown in M. satunensis , new species) ................ 6

2. 6 or 5 pairs of dorsocentral bristles ...................................... 3

– 4 pairs of dorsocentral bristles .............................................. 5

3. Fore tarsus thickened ( Fig. 6 ), entirely dark brown. Scutum with 6 pairs of dorsocentral bristles. Abdominal sternites 5 and 6 with equally small median posteromarginal processes ( Figs. 11, 12 ) ………..…….........................…. M. malaysiana , new species

– Fore tarsus slender. Scutum with 5 pairs of dorsocentral bristles ................................................................................................. 4

4. Fore tarsus with tarsomeres 1-2 yellow, tarsomere 3 brownish yellow and tarsomeres 4-5 brownish. Halter pale. Abdominal segments 5 and 6 with equally large processes ( Figs. 36, 37) ....................................................... M. satunensis , new species

– Legs entirely black. Halter black. Abdominal segments lacking processes .......................................................... M. iota Colless

5. Fore tarsus somewhat thickened, with tarsomeres 1-2 yellow. Femora largely brown, brownish yellow in apical part. Abdominal sternite 5 with short, rather slender median posteromarginal process, sternite 6 with longer, broad process ( Figs. 25, 26 ). Terminalia with right surstylus broad crescentshaped ( Fig. 27 ) .............................. M. papuana , new species

– Fore tarsus slender, with tarsomeres 1-3 yellow. Femora almost wholly yellowish, brownish dorsally. Abdominal sternite 5 lacking process, sternite 6 with large, broad process ( Figs. 31, 32 ). Terminalia with right surstylus long, narrow ( Fig. 33 ) .................................................................. M. bira , new species

6. 5 or 6 pairs of dorsocentral bristles ......................................... 7

– 4 pairs of dorsocentral bristles .............................................. 8

7. Fore tarsus yellowish brown, with tarsomeres becoming darker from 1st to 5th; mid and hind tarsomere 1 largely yellow, brownish at apex. Halter pale .... M. malaysiana , new species

– Legs entirely black. Halter black ................... M. iota Colless

8. All tarsi almost wholly light brown, only tarsomere 1 paler basally ............................................. M. papuana , new species

– All tarsi with tarsomeres 1-2 yellowish brown ................................................................. M. bira , new species

Figures

Figs. 1-10: Microphorella malaysiana, new species, male. 1 – antenna, dorsal view, 2 – palpus, lateral view, 3 – inside structure of basal sensory pit on palpus, lateral view, 4 – mouthparts, lateral view, 5 – labella, dorsal view, 6 – fore leg, anterior view, 7 – mid leg, anterior view, 8 – hind leg, anterior view, 9 – prothoracic pleurosternal region, anterior view, 10 – wing, dorsal view. Scale: 0.1 mm.

Figs. 11-16: Microphorella malaysiana, new species, male. 11 – postabdomen, left lateral view, 12 – same, ventral view, 13 – male terminalia, right lateral view, 14 – same, left lateral view, 15 – same, dorsal view, 16 – same, ventral view. Scale: 0.1 mm.

Figs. 21-26. Microphorella papuana, new species, male. 21 – habitus, right lateral view (scale 1.0 mm), 22 – fore leg, anterior view, 23 – mid leg, anterior view, 24 – hind leg, anterior view, 25 – postabdomen (segment 8 and hypopygium not shown), left lateral view, 26 – same, ventral view. Scale 0.1 mm.

Figs. 27-30. Microphorella papuana, new species, male. 27 – terminalia, right lateral view, 28 – same, left lateral view, 29 – same, dorsal view, 30 – same, ventral view. Scale 0.1 mm.

Figs. 31-35. Microphorella bira, new species, male. 31 – postabdomen (segment 8 and hypopygium not shown), left lateral view, 32 – same, ventral view, 33 – terminalia, right lateral view, 34 – same, left lateral view, 35 – same, ventral view. Scale 0.1 mm.