Portschinskia przewalskyi, (PORTSCHINSKY, 1887)

PORTSCHINSKIA PRZEWALSKYI ( PORTSCHINSKY, 1887) View in CoL

Microcephalus przewalskyi Portschinsky, 1887: 9 . Type locality: China: Qinghai, Burchan-Budda Mountains (as ‘Asia media, Burchan-Budda’).

Microcephalus przewalsky : Portschinsky (1887: 14, as ‘ M. Przewalsky ’); incorrect original spelling of Microcephalus przewalskyi Portschinsky, 1887 .

Portschinskia przewalskii : Semenov (1902: 53); erroneous subsequent spelling of Microcephalus przewalskyi Portschinsky, 1887 .

Portschinskia przewalskyi View in CoL : Grunin (1965: 54); Zumpt (1965: 192); Pont (1973: 701); Soós & Minář (1986: 246); Colwell et al. (2006: 262).

Diagnosis: Antennal pedicel broader than long. Hair-like setae on frons and facial ridge yellow. Abdomen in male with yellow setae anteriorly, black setae in the middle and reddish setae posteriorly, and in female the abdomen with black setae anteriorly and reddish setae on last two segments. Wing hyaline. Male abdominal sternite 5 nearly oval.

Redescription: Male: Body length 17–19 mm; wing length and width 14.5 mm × 4.8 mm (N = 2). Large compound eye, height relative to head ≥ 1/2. Antennal pedicel broader than long, with a concavity in the middle of the terminal margin ( Fig. 6B View Figure 6 ). Width of frons ~2/7 width of head in dorsal view. Hair-like setae on frons, facial ridge, presutural area of scutum, anepisternum, postalar callus and scutellum yellow, on postpronotal lobe mainly black, or with sporadic yellow setae ( Figs 2B View Figure 2 , 4B View Figure 4 , 6B View Figure 6 ), on meron a mixture of yellow and brown. Abdomen with yellow setae anteriorly, black setae in the middle and reddish setae posteriorly. Wing hyaline; vein M strongly curved at the level of dm-cu; cell r 4 + 5 closed with a short petiole ( Fig. 10B View Figure 10 ). Male abdominal sternite 5 oval, broadened in the middle, making lateral margins distinctly convex and arc shaped ( Grunin, 1965: fig. 67). Male cerci moderately flattened, with basal part strongly swollen ( Grunin, 1965: fig. 66).

Female: Differing from the male as follows: body length 19 mm; wing length and width 16.1 mm × 5.0 mm (N = 1). Width of frons ~1/2 width of head in dorsal view. Abdomen with black setae anteriorly and reddish setae on last two segments.

Type material examined: Holotype of Microcephalus przewalskyi : ♂, CHINA: Qinghai Province, Burchan-Budda Mountains , 4250 m, [no date], N. M. Przewalsky leg. ( ZIN).

Additional material examined: CHINA: one ♂ [terminalia missing], Qinghai Province, Chatu Gorge in Burchan-Budda Mountains , 3300 m, June 1901, P. Koslow leg. ( ZIN) ; one ♀ [terminalia missing], Qinghai Province, upper Yellow River , June 1900, P. Koslow leg. ( ZIN) .