Hypselothyrea (Deplanothyrea) longimana, Papp, 2003

Papp, L., 2003, New Species And Records Of Hypselothyrea De Meijere (Diptera, Drosophilidae), Acta Zoologica Academiae Scientiarum Hungaricae 49 (4), pp. 271-294 : 290

Hypselothyrea (Deplanothyrea) longimana sp. n.

( Figs 29–30 )

Holotype male ( MHNG): INDIA: Meghalaya, Khasi Hills, Nongpoh , 700 m, 5. XI. 1978, leg. CLAUDE BESUCHET et IVAN LÖBL, No. 42b (left fore tarsi lost, some setae broken but otherwise in good condition; when described in alcohol, later prepared with critical point drier).

Paratypes: 1 male ( MHNG, base of abdomen and scutellar area damaged) , 1 male ( HNHM, a faint, immature specimen, genitalia prep., in a microvial): data same as for holotype .

Measurements in mm: body length 1.86 (holotype, with abdomen downcurved), 2.14, 2.145 (paratypes).

Bodybrown,ventralpartsofpleuradarkerbrown.Structureofbody,particularlysofortheabdomen, similar to H. (D.) subaptera sp. n.

Anterior fronto-orbital thick but definitely shorter than posterior one. Palpal seta 0.105 mm long. Vibrissa 0.065 mm, posterior genal seta 0.07 mm long. Carina distinct, angular, but reaches middle of facial plate only. Arista with 5 dorsal and 2 ventral rays behind apical fork.

No postpronotal seta, notopleural small, both supra-alar pairs strong and upright, 1 strong pair of dorsocentral setae (0.34 mm long), postalar weak (0.083 mm). Acrostichal microchaetae minute, in 2 row, intra-alar microchaetae rather scattered, in more or less distinct 2*2 rows. Subscutellum distinct (as that of the Tachinidae ), scutellum only 0.12 mm long (paratype). Apical scutellar seta perpendicular, 0.33 mm long, no basal scutellars.

Legs, incl. basitarsi, dark brown. Bases of femora lighter and tarsomeres 2–5 light yellow. Fore femur with 6 minute anteroventral thornlets, no posteroventral row of setae but only a subapical long posteroventral seta.

Completely wingless and without halteres.

Tergite 2 and 3 with 2 pairs each of extremely long thick, perpendicular submarginal setae (longest 0.275 mm), other (discal and marginal) abdominal setae also rather strong.

Male epandrium subventrally with 3 long thick setae (similarly to H. (D.) amputata sp. n.) ( Fig. 29 ). Strong thick thorn emerge almost evenly on medial surface of surstylus ( Fig. 29 ). Inner genitalia ( Fig. 30 ) similar to those of H. (D.) amputata , but both medial and lateral parameral setae are shorter.

Female unknown.

Based on similarities in male genitalia, I think, this new species is related to

H. (D.) amputata (although it has only 1 pair of dorsocentrals); they are probably derivatives of the same stem species. The very distant occurrence of these two species makes us to think of several other unknown wingless or reduced-winged species of this group in soils of SE Asia.

Figures

Figs 24–31. 24. Hypselothyrea (Deplanothyrea) amputata sp. n., holotype male, wing. 25–31. H. (D.) terminalia: 25–27 = H. (D.) amputata sp. n., holotype, 25 = apex of epandrium and surstylus, broadest extension, 26 = surstylus, broadest extension, medial view, 27 = hypandrium and genitalia, ventral view. 28 = H. (D.) formosana sp. n., paratype, oviscapt, lateral view. 29–30 = H. (D.) longimana sp. n., paratype: 29 = surstyli, in view of the broadest extension of the right surstylus, 30 = hypandrium and genitalia, ventral view. 31 = H. (D.) subaptera sp. n., paratype female, oviscapt. Scale