Microphorella satunensis, Shamshev & Grootaert, 2004

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 : 55

Microphorella satunensis , new species

( Figs. 36-40)

Material examined. – Holotype - male, Thailand, Pak Bara (Satun prov.), beach, white pan traps, 97135, 28 Oct.1997, coll. P. Grootaert.

Paratypes – 3 males, same data as in holotype. All deposited in RBINS, Brussels, except otherwise indicated .

Diagnosis. – Resembling M. papuana , new species, smaller (1.2-1.4 mm long), scutum with 5 dorsocentrals, abdominal segments 5 and 6 with equally large processes; right surstylus subtriangular.

Description. – Male body length 1.2-1.4 mm, wing length 1.1-1.2 mm. Head and thorax finely greyish pollinose. Ocellar tubercle with 2 long anterior and 2 very short posterior ocellar bristles. Face in middle nearly as broad as distance between posterior ocelli. Scutum with 2 postsutural supra-alar bristles. Dorsocentrals represented by 5 long bristles per row (2 prescutellar pairs somewhat longer). Tarsi with slender tarsomeres (except tarsomere 5). Legs with following pattern: coxae almost wholly brown, fore coxa paler at apex; mid and hind trochanters yellowish brown, fore trochanter somewhat paler; femora largely brownish; fore femur at extreme base and in apical 2/5, mid femur in apical 1/3 and hind femur in apical 1/4 yellow; all tibiae pale yellow; all tarsi with

tarsomeres 1-2 yellow, tarsomere 3 brownish yellow and tarsomeres 4-5 brownish. Wing finely infuscate, basal section of costa with 1 short and 1 long bristles. Abdomen with sternite 4 bearing clusters of long, strong setae on each side ( Figs. 36, 37); sternites 5 and 6 with equally large (viewed ventrally) processes, both bearing few setae laterally; segment 7 lacking setation. Terminalia ( Figs. 38-40) with right surstylus rather subtriangular. Otherwise as in M. malaysiana , new species.

Female unknown.

Differential diagnosis. – The new species differs from other species by a set of the characters given in the key.

Etymology. – The species is named after the province of the type locality, Satun.

Distribution. – Thailand.