Poecilovitila variegata, Papp, László, 2011

Papp, László, 2011, Oriental Teratomyzidae (Diptera: Schizophora), Zootaxa 2916, pp. 1-34 : 29-32

Poecilovitila variegata sp. nov.

( Figs 103–110 , 121 )

Type material. Holotype 3 ( HNHM): VIETNAM, Sin Chai, “Legendary place”, 15. 11. 2003, No. 6, along forest path & creek, leg. Földvári, Peregovits, Kőrösi. Paratypes ( HNHM): 1 3 1 Ƥ: same as for holotype [genitalia of male in a plastic microvial with glycerol].

Description. Measurements in mm: body length 3.06 (holotype), 2.94–3.42 (paratypes); wing length 3.38 (holotype); 3.40–3.77 (paratypes), wing width 1.10 (holotype), 1.05–1.275 (paratypes).

Head. Prefrons yellow, slightly concave in most of its dorsal part. Postfrons dirtí yellow, slightly convex. Ommatrichia dense and longer than 0.02 mm. Proboscis dark. Female prefrons white. Gena rather broad, 0.09 mm below eye, as broad as pedicel. Genal setae strong and numerous, in 2 not well ordered rows: one 0.24 mm long seta below anterior edge of eye, a similar one more posteriorly and other 6–7 medium-long setae. Postgenal and postocular setae longer than usual. Antenna greyish light brown. Arista whitish. Scape normal, definitely shorter than broad, no distinct setae on scape. Pedicel much broader than scape with several longer apical setae, longest one 0.11 mm .. First flagellomere sub-spherical, round in profile, not much longer (measured on dorsal edge) than broad (0.16 mm * 0.14 mm).

Thorax. Mesonotum broadly rounded antero-dorsally. Mesonotum and scutellum not granulose, rather shining brown but not particularly dark. Pleura brown dorsally, vellow ventrally, transition of the darker and lighter colours is not sharp, even medial part of anepisternum lighter in some specimens.

Wing ( Fig. 121 ) with vein R2+3 not thickened. Wing membrane brown, dark brown basally, below edge of R1, around white spot down to costal continuation behind R4+5 and on upper part of cell r4+5; m cells diffusely darker centrally. White spot quadrate much higher than long (0.25 vs. 0.175). Veins dark brown. Length of costal sections (all wing measurements in mm) between R1 and R2+3 1.92, between R2+3 and R4+5 0.96, between R4+5 and M1+2 0.67, inter-crossvein section oblique 0.04, costal seta 0.09, length of basal cell 0.35, length of discal cell 0.59, distance between apices of M veins 1.05 mm, cell r1 0.06 mm at narrowest. Costal vein continued on a section of 0.06 mm over the apex of R4+5. Apical seta 0.12 mm. R4+5 strongly downcurved. M3+4 strongly swung sub-basally. Halter lighter brown.

Legs yellow, apices of femora and bases of tibiae diffusely browned, also tarsomeres somewhat darkerthan tibial apices.

Abdomen. Abdominal terga 3–5 (male) or 3–6 (female) with large whitish markings both cranially and caudally on lateral (down curved) parts (light parts may meet sagittally, i.e. are connected through narrow marginal lines) on some specimens.

Male genitalia. Tergite 5 fused to that of the 6th ( Figs 103, 109 ), as a consequence, 2 spiracles discernible on the fused sclerite laterally ( Fig. 103 ). Surstylus ( Figs 104–105 ) long, only narrowly rounded apically, with sparse but long caudally directed setae. Caudal edge of surstylus with numerous (21–22) blunt black pegs. Lateral part of the basal broad part of phallapodeme ( Fig. 107 ) membranous, its rod is rather long. Pregonite ( Fig. 108 ) rather broad, medium-long setae arise from its middle and basal part only. Postgonite ( Fig. 110 ) comparatively broad and broadly rounded apically. Phallus comparatively short. Left lamella of mesophallus reduced to a thread, connected to the distiphallus as a membrane only. Distiphallus with a rather long apical curved process ( Fig. 103 ). Ejaculatory apodeme ( Fig. 106 ) with comparatively short basal broadened part and long rod.

Etymology. The specific epithet of this new species (the Latin word ‘variegata’ means the external appearance with different colours) reflects to the body colours, particularly so for its wings and abdomen.

Figures

FIGURES 103 – 110. Poecilovitila variegata sp. n., male postabdomen and genitalia. 103 = postabdomen and genitalia, 104 = surstylus, broadest inner (medial) view, 105 = medial half of surstylus in higher magnification, same view, 106 = ejaculatory apodeme, dorsal view, 107 = phallapodeme, dorsal view, 108 = pregonite, broadest inner (medial) view, 109 = contours of postabdomen and epandrium, dorsal view, 110 = postgonite, broadest (a sublateral) view. Scales: 0.2 mm for Figs 103 – 104, 106, 0.1 mm for Figs 105, 107 – 110.

FIGURES 118 – 121. Wings of Poecilovitila new species. 118 = P. japonica sp. nov.; 119 = P. taiwanica sp. nov., holotype female; 120 = P. thaii sp. nov.; 121 = P. variegata sp. nov. Scales: 1.0 mm each.