Poecilovitila thaii, Papp, László, 2011

Papp, László, 2011, Oriental Teratomyzidae (Diptera: Schizophora), Zootaxa 2916, pp. 1-34 : 26-29

publication ID	https://doi.org/ 10.5281/zenodo.203613
DOI	https://doi.org/10.5281/zenodo.3499890
persistent identifier	https://treatment.plazi.org/id/3430A837-566B-D543-FF3A-C5800566F99E
treatment provided by	Plazi
scientific name	Poecilovitila thaii
status	sp. nov.

Treatment

Poecilovitila thaii View in CoL sp. nov.

( Figs 78, 82 View FIGURES 76 – 84 , 93–102 View FIGURES 93 – 102 , 120 View FIGURES 118 – 121 )

Type material. Holotype 3 ( HNHM): Thailand, Fang [Province], Mae Fang NP, Doi Pha Hom Pok, 22–23. 11. 2003, along forest road and creeks, 2000 m, leg. Földvári, No. 11. Paratypes ( HNHM): Thailand: 1 3 1 Ƥ: same as for holotype [genitalia of male in a plastic microvial with glycerol]; 1 Ƥ: Tham Sakoen NP, 30. 11. 2003, 19º23’N 100º38’E, along creek at forest border, leg. A. Szappanos. Vietnam: 1 3: Da Lat, Cam Ly area, 8. XII. 1994, No: 734, S. Mahunka, Gy. Sziráki, L. Zombori.

Description. Measurements in mm: body length 2.37 (holotype), 2.35, 2.80 (paratype males), 2.86--3.02 (paratype females); wing length 2.56 (holotype), 2.52, 2.97 (paratype males), 3.40–3.60 (paratype females); wing width 0.81 (holotype), 0.80, 0.92 (paratype males), 0.93—1.08 (paratype females).

Head much flattened, much longer than high, rather quadratic in profile, consequently eyes are similarly so. Prefrons (facial plate) dark brown ventrally above mouth margin (less than lower 1/3), ochrous above. Prefrons with minimal width 0.25 mm, height 0.22 mm. Postfrons light brown, not flat: emerging from anterior ocellus to lunule, depressed from ocellar triangle to anterolateral margin of eyes. Gena very narrow (0.055 mm below eye), horizontal. Genal setae: one very long seta behind anterior edge of eye, 1 similarly long not much posteriorly and a third one medially below eye, some other (1–2) genal setae are short (N.B.: not to include postgenal setae). Antenna all dark, arista white. Scape much longer than broad 0.15 * 0.09 mm (dorsally almost 2 times longer than pedicel), its longest (dorsal subapical) setae 0.08 mm long. Scape ventrally with some moderately long setae. Pedicel shorter than broad apically, with several setae, longest one 0.13 mm. First flagellomere blackish, much longer than broad (0.26 mm * 0.13 mm).

Thorax. Mesonotum in profile antero-dorsally (towards pronotum) forms an angle smaller then 90°. Mesonotum and scutellum as well as dorsal parts of pleura dark brown. Mesonotum granulose, scutellum rugose. Pleura light in their all length at least on 2/5 height of thorax, transition of colours not sharp.

Wing. Vein R2+3 extremely thickened, touching costa or nearly so ( Fig. 120 View FIGURES 118 – 121 ), vein R2+3 0.044 mm there. Wing membrane basic colour light brown, darker basally, in cell r1 at edge and most apically, in the whole r2+3 (except for the white spot), in upper half of r4+5, and diffusel darker in m cells. White spot nearly round, longer than high (0.17 vs. 0.12). Veins dark brown. Length of costal sections (all wing measurements in mm) between R1 and R2+3 1.32, between R2+3 and R4+5 0.82, between R4+5 and M1+2 0.48, no inter-crossvein section, basal costal seta 0.13, costal seta 0.08, length of basal cell 0.235, length of discal cell 0.44, distance between apices of M veins 0.88 mm, cell r1 0.003 mm (to nil) at narrowest, there vein R2+3 0.035 mm thick (male paratype). Costal vein continued on a section of 0.11 mm over the apex of R4+5. R4+5 undulately curved, M3+4 moderately recurved sub-basally. A1 shorter than usual. Halter dark brown.

Legs yellow but apical part of femora on a longer section are diffusely brown.

Abdomen. All dark.

Male genitalia. Cerci ( Fig. 96 View FIGURES 93 – 102 ) triangular with numerous but rather thin setae. Subepandrial sclerite broad but low ( Fig. 96 View FIGURES 93 – 102 ). Apex of male surstylus not rounded ( Figs 93–94 View FIGURES 93 – 102 ), much longer than broad, cranial margin slightly infolded; some 5 pegs arise from that infolded edge, i.e. actually on the medial surface ( Fig. 94 View FIGURES 93 – 102 ). Surstylus with numerous very long setae; its apical black blunt teeth are gap-toothed, or rather, unevenly spaced. Phallapodeme with broad base but rod rather long. Broadened part of ejaculatory apodeme ( Figs 97–98 View FIGURES 93 – 102 ) much shorfter than its rod, apex only slightly broadened. Pregonite ( Fig. 100 View FIGURES 93 – 102 ) short but high with 6 long setae. Postgonite ( Figs 99–100 View FIGURES 93 – 102 ) strongly medio-clinate and comparatively broad also in caudal view. Female genitalia. Sternite 8 ( Fig. 78 View FIGURES 76 – 84 ) is much broader than long, medio-caudally with a distinct broad but apically narrowig process. Spermathecae ( Fig. 82 View FIGURES 76 – 84 ) globular, not too large (shorter diameter 0.067 mm). The basal part of the speermatheca is rather specific: it consists of a broader basal and a thinner distal sclerotised parts. Both bear sharp thornlets.

Remarks. Papp (2006) reported two teratomyzid species from Thailand but he did not describe any. Now we think, all specimens at our disposal belong to the rather variable P. t h a i i sp. n. During our studies, the eggs of P. thaii have also been observed. The eggs ( Figs 101–102 View FIGURES 93 – 102 ) are boat-shaped, cranial end slightly narrower though rounded. The chorion of the egg consists of long and parallel-sided “cells”, which include rounded structures (actually very low incrustations).

Etymology. The specific epithet of this new species refers to the native country ( Thailand) where it has been collected.