Parapterogramma asiaticum Papp, 2008

Figs 2, 40A, 42

Parapterogramma asiatica Papp, 2008: 99 .

Parapterogramma asiaticum – Marshall et al. 2011: 257.

Type material

Holotype THAILAND – Trang Province • ♂; Khao Chong Botanic Garden; 18 Nov. 2004; L. Papp and M. Földvári leg.; rainforest; HNHM.

Paratypes THAILAND – Trang Province • 1 ♂; same collection data as for holotype; 22 Nov. 2004; HNHM • 1 ♂; Palian District, Nam Tok Nam Pan Forest Park; 17 Nov. 2004; L. Papp and M. Földvári leg.; over streams and vegetation around waterfalls; HNHM • 1 ♀; Thung Khai Botanic Garden; 12 Nov. 2004; L. Papp and M. Földvári leg.; primary lowland rainforest; HNHM .

Material examined

Holotype photo provided by Petra Szöllősi-Tóth, HNHM.

INDONESIA – Aceh • 1 ♂, 1 ♀; Gunung Leuser National Park, Ketambe Research Station; 3°41′ N, 97°39′ E; 350 m a.s.l.; 2–6 Sep. 1989; W.K. Gall leg.; primary rainforest, UV/MV light; ROME • 1 ♀; Mount Leuser National Park, Ketambe Research Station; 350 m a.s.l.; 3–10 Sep. 1989; B. Hubley & D.C. Darling leg.; young forest, closed canopy, Malaise head; DEBU .

SINGAPORE • 1 ♂; National University of Singapore campus; 29 Apr. 2015; NUS Insect Survey Project leg.; LKCNHM • 1 ♂; Sungei Buloh Wetland Reserve; 2 May 2012; Singapore Mangrove Insect Project leg.; LKCNHM .

Redescription

BODY (Fig. 2). Length 1.0– 1.2 mm. Head dark brown except for reddish lower portion of frons, with silvery-yellow microtomentum on lunule, interfrontal plates, ocellar triangle, orbital plates, and occiput; gena brownish-yellow; antenna brown. Frontal width 2.3–2.4 × interfrontal height. Eye height 3.0–3.2 × genal height. Palpus reduced. Thorax brown, anepimeron with a pale ventral spot. Scutum with pale grey and brown microtomentum forming three grey longitudinal stripes, lateral margins broadly dark brown microtomentose, and pale M-shaped microtomentose mark enclosing posterior dorsocentral bristles; scutellum dark brown with median, grey-brown microtomentose triangle. Anterior dorsocentral bristles separated by 6 rows of acrostichal setulae. Legs dark brown with yellow basal and medial rings; fore and hind basitarsi light yellow. Male mid tibia with a stout apicoventral bristle and two rows of stout ventral setae. Wing (Fig. 40A) pattern strong. CS2 0.5× CS3. R 2+3 broadly curved in apical half, angled at ~60° to costa; costa extending well beyond apex of R 4+5 (5–6× costal width). M 1 and M 4 both indistinct beyond dm-m; CuA+CuP long. Halter pale brown.

MALE ABDOMEN. S5 broad, long-setose along posterior margin with a large, rounded, posteromedial lobe and a separate, posteriorly-setulose dorsal sclerite. S6 extending to the right side and sinuate. Cercus flat, subquadrate, with two setae; subepandrial sclerite hexagonal with a dark X-shaped pattern. Surstylus long but low, bilobed: anterior lobe smaller, triangular, laterally setose with a stout apical tooth-like seta, posterior lobe subtriangular, slightly curved, and setose laterally and ventrally. Postgonite small, bent about midlength and broadened, apex emarginate, medially with a setulose, anterior process terminating in a downcurved, tooth-like projection. Phallapodeme elongate, slightly curved; basiphallus elongate, extended into a tapered epiphallus distally. Distiphallus stout, largely membranous with several upperlateral and lower supporting sclerites, lower sclerite with a knob-like ventral lobe.

FEMALE ABDOMEN. T7 divided into two lateral sclerites; T8 very small, triangular, divided into two parts. S6 rectangular and setose along posterior margin; S7 small and rectangular. Spermathecae stout, subcylindrical, stem very short and membranous. No other details of the female terminalia are given in Papp (2008).

Distribution

Indomalayan: Indonesia (new record), Singapore (new record), Thailand (Papp 2008).

Remarks

The slightly reduced palpus of Pa. asiaticum is an autapomorphy of the species, rather than a generic synapomorphy as suggested by Papp’s generic description; other species of Parapterogramma have relatively well-developed palpi. Illustrations of the male genitalia are not provided here as Papp’s (2008) illustrations are detailed and adequate.