Poecilovitila barbata, Papp, László, 2011

Papp, László, 2011, Oriental Teratomyzidae (Diptera: Schizophora), Zootaxa 2916, pp. 1-34 : 12

Poecilovitila barbata sp. nov.

( Figs 32–40 , 67, 76, 83, 112)

Type material. Holotype 3 ( HNHM): VIETNAM: Lao Cai Prov., Sín Chai, Hoáng Liên N.P., Tram Ton, along and over a rivulet, 1936 m, 22º20.941’N 103º46.197’E, Dec 16–17, 2008, leg. L. Papp, VN 2008PL10. Paratypes ( HNHM): 2 Ƥ: ibid., VN 2008PL_03, VN 2010PL_08 [genitalia of the holotype in plastic microvial with glycerol].

Description. Measurements in mm: body length 2.70 (male), c. 2.75 and 3.00 (females); wing length 3.40 (male), 3.55, 3.60 (females); wing width 1.12 (male), 1.12, 1.13 (females).

Head. Prefrons (facial plate) 0.25 mm broad, 0.36 mm high, light yellow with sparse white microtrichia, appearing whitish. Frons light brown, strongly shining, with microtrichia sparse and very short. Gena broad (0.11 mm), oblique (i.e. not horizontal), yellow with dense white microtrichia. Genal setae extremely long: first genal seta 0.27 mm, at middle of genal height below anterior margin of eye, gena with other 4–5 long setae closer to mouth margin, but still not in peristomal position. Scape longer than pedicel, longer than wide, slightly bulbous, longest (subdorsal) seta 0.07 mm. Pedicel 0.10 mm long, longest (dorsal) seta 0.11 mm. First flagellomere darker greyish brown, 0.20 mm long, 0.14 mm broad. Arista white.

Thorax. Mesonotum granulose with scutellum deeply rugose. Mesonotum and scutellum brown. Pleuron with dorsal part, incl. upper 2/3 of anepisternum and almost entire anepisternum brown, ventral parts yellow with transition in colour gradual.

Wing pattern ( Fig. 112 ) as in P. erugata , white spot sub-trapezoid, nearly as long as high (0.15 mm long and 0.165 mm high). Length of costal sections (all wing measurements in mm) between R1 and R2+3 1.69, between R2+3 and R4+5 0.90, between R4+5 and M1+2 0.65, inter-crossvein section 0.033 only, costal seta 0.10, length of basal cell 0.28, length of discal cell 0.555, distance between apices of M veins 1.055, cell r1 0.02 mm at narrowest, vein R2+3 0.033 mm thick at that point. Costal vein extending 0.12 mm past intersection with R4+5. Costal basal seta curved, apical seta 0.11 mm long. Vein M3+4 strongly recurved sub-basally. Halter light brown.

Legs mainly yellow, dorsal part of fore femur brownish, 4th and 5th tarsomeres light brown.

Abdomen. Entirely dark. Postabdomen similar to those of P. erugata , differing as follows:

Male. Syntergosternite very light but not as transparent as in P. erugata , and not longer than 0.07 mm. Sternite 6 only 0.05 mm long. Male surstylus ( Figs 35–36 ) with fewer long setae, long apical setae not entirely marginal, apical pegs more evenly spaced (cf. Fig. 68 ). Subepandrial sclerite ( Fig. 33 ) broadly rounded medially. Pregonite ( Fig. 32 ) with fewer setae than P. erugata . Postgonites ( Figs 39–40 ) slightly asymmetrical, apex comparatively broad. Epiphallus ( Fig. 40 ) broader than high, broad shield-shaped. Mesophallus slightly longer than distiphallus, left ribbon of mesophallus ca. 6 time broader than right ribbon at middle. Distiphallus with an apical curved process. Phallapodeme ( Fig. 38 ) slightly asymmetrical, length/broadest width ratio 85/67. Ejaculatory apodeme ( Figs 34, 37 ) with smaller distal apical part.

Female with spermathecae very large, diameter 0.126 mm, positioned in the 5th and 6th segment.

Etymology. The specific epithet of this new species refers to its very long genal setae.

Figures

FIGURES 32 – 40. Poecilovitila barbata sp. n., male genitalia. 32 = pregonite, lateral view, 33 = subepandrial sclerite with contours of epandrium, surstyli and cerci, ventral view, 34 = ejaculatory apodeme, lateral view, 35 = surstylus, broadest inner (medial) view, 36 = apical part of surstylus in higher magnification, same view, 37 = ejaculatory apodeme, dorsal view, 38 = phallapodeme, dorsal view, 39 = postgonite, broadest extension, 40 = epiphallus and left postgonite, caudal view with right postgonite in a view between lateral and caudal. Scales: 0.2 mm for Figs 33 – 35, 0.1 mm for Figs 32, 36 – 40.

FIGURES 111 – 113. Wings of Teratomyzidae new species. 111 = Teratomyza formosana sp. nov.; 112 = Poecilovitila barbata sp. nov.; 113 = P. brevicornis sp. nov. Scales: 1.0 mm each.

FIGURES 68 – 75. P. erugata sp. n., male genitalia. 68 = surstylus, broadest inner (medial) view, 69 = apical part of surstylus in higher magnification, same view, 70 = subepandrial sclerite with contours of surstyli and cerci, in ventral view, 71 = phallapodeme, dorsal view, 72 = ejaculatory apodeme, lateral view, 73 = same, dorsal view, 74 = epiphallus and postgonites, caudal view, 75 = pregonite with hypandrium, lateral view. Scales: 0.2 mm for Figs 68, 70, 72, 0.1 mm for Figs 69, 71, 73 – 75.