Poecilovitila defecta, Papp, László, 2011

Papp, László, 2011, Oriental Teratomyzidae (Diptera: Schizophora), Zootaxa 2916, pp. 1-34 : 17-18

Poecilovitila defecta sp. nov.

( Figs 56–60 )

Type material. Holotype 3 ( HNHM, apical 3/4 of wings broken off): VIETNAM: Da Lat, Cam Ly area, 4. XI. [19]94, No: 691, [Lajos] Zombori. An immature (teneral) adult, left fore and mid legs lost, apical ¾ of wings broken off, antennae (except for right scape and pedicel) lost.

Description. Body length 2.69 mm, wings mostly lost.

Head. Occiput concave, meeting vertex at a sharp angle. Head setae comparatively long, e.g. ocellars 0.32 mm. Frons not flat, dark brown, shining, with a pair of longitudinal interfrontal fossa, plus a transverse wavy postantennal fossa. Ocellar triangle slightly emerging from frontal surface. Prefrons (facial plate) 0.13 mm wide, 0.23 mm high, but in consequence of distinct lunule, it looks even higher; greyish (dirty) yellow, “dusted”, i.e. with thick microtomentum. Gena narrow, only 0.035 mm broad. Genal setae: 3 long setae below eye, longest 0.21 nn long. Proboscis entirely yellow. Scape dark brown, not bulbous, dorsally with at least 2 strong setae. Pedicel only 0.09 mm long with several long setae (longest 0.10 mm).

Thorax. Mesonotum and scutellum dark brown. Mesonotum strongly granulose, flattened dorsally and terminating in sharp edge anterodorsally when seen in profile. Scutellum longer than usual, 0.31 mm. Pleuron dark brown, only katepisternum and meron lighter dirty brown

Wing. Wing dark brown with veins darker. Costa with long setae, longest 0.11 mm. Halter dark brown, base blackish.

Legs yellow with base of femora brown.

Abdomen. Dark brown. Male tergite 7 rather long, dorsally 0.14 mm. Weakly sclerotised lateral sclerites (inside the ring of the synsclerite 7) discernible. Sternite 7 with a flat sagittal plate caudally ( Fig. 56 ). Subepandrial sclerite similar to that of P. bulbiscapus . Surstylus ( Figs 57–58 ) very long (high), with a small constriction at middle. Most of the long surstylar setae are on themedial surface. Surstylus apically with 24 closely set blunt black pegs. Pregonite ( Fig. 59 ) with a small anterior subapical process when seen laterally, apex more or less rounded with numerous medium-long setae. Mesophallus longer than distiphallus. Distiphallus with a curved broad apical process. Left (broader) ribbon of mesophallus with a pointed subtriangular distolateral process. Epiphallus shorter than in P. bulbiscapus . Ejaculatory apodeme ( Fig. 60 ) comparatively short, both distal and basal ends rather broad.

Female unknown.

Remark. The description of this species is based on a single defected male (thus its specific epithet). However, some body features and the genital characters are so peculiar, that I have no doubt of its specific distinctness.

Figures

FIGURES 56 – 60. Poecilovitila defecta sp. n., male genitalia. 56 = ventral part of syntergosternite, subcaudal view, 57 = surstylus, broadest inner (medial) view, 58 = apical half of surstylus in higher magnification, same view, 59 = pregonite, lateral view, 60 = ejaculatory apodeme, dorsal view. Scales: 0.2 mm for Figs 56 – 57, 0.1 mm for Figs 58 – 60.