Parastephanellus austrochinensis Belokobylskij, 1995

Tan, Jiang-Li, Achterberg, Cornelis Van, Tan, Qing-Qing, Zhou, Tong & Li, Tao, 2018, Parastephanellus Enderlein (Hymenoptera: Stephanidae) revisited, with description of two new species from China, Zootaxa 4459 (2), pp. 327-349 : 330-331

Parastephanellus austrochinensis Belokobylskij, 1995 , reinstated

Figs 11–17

Parastephanellus politus Chao, 1964 (not Elliott, 1928): 380, 387.

Parastephanellus austrochinensis Belokobylskij, 1995: 22 (new name for junior homonym); Aguiar 2004: 65; Hong et al. 2011: 41 (as synonym of P. brevistigma Enderlein, 1913 ).

Diagnosis. Pale yellowish streak of temple moderately to hardly contrasting with brown posterior part of temple in lateral view ( Fig. 17 ), remaining separated from occipital carina in dorsal view ( Fig. 16 ); temples slightly angulate in dorsal view; frons of ♀ brownish yellow; medio-anteriorly pronotum gradually arising behind neck and superficially sculptured ( Fig. 12 ); pronotum below tegulae costate ( Fig. 12 ); pronotum stout in dorsal view ( Fig. 13 ); vein 1-M of fore wing 0.9–1.1 × as long as vein m-cu and 2.1 × vein 1-SR ( Fig. 35 ); vein 1-SR of fore wing strongly angled with vein 1-M and about as long as vein 2-M+CU1 ( Fig. 35 ); vein m-cu of fore wing approx. as long as vein 2-SR+M; sclerotized part of vein 2-M of fore wing not surpassing level of apex of vein r; vein r of fore wing ends near level of apex of pterostigma ( Fig. 35 ); pterostigma rather abruptly narrowed apically, more or less widened, not parallel-sided and 4–5 × as long as wide ( Fig. 11 ); hind coxa of ♂ approx. 3 × as long as wide in dorso-lateral view; first metasomal tergite approximately 5 × as long as its maximum width; ovipositor sheath approx. 1.7 × as long as body.

Distribution. China (Yunnan, Guangxi).

Notes. As well illustrated by Hong et al. (2011) two forms of P. brevistigma Enderlein exist in China. One with aberrant venation of the fore wing as described in the key in this paper and typical for Taiwan (holotype of P. brevistigma : Figs 35–42 ) and one with normal venation ( Figs 11–17 ; Chao, 1964) from continental China. Unfortunately, there is no additional material from Taiwan to study the variation of the characters used for separation, but we consider the difference in venation profound enough to reinstate P. austrochinensis .

Figures

FIGURES 11–17. Parastephanellus austrochinensis Belokobylskij, ♀, China (Guangxi). 11, fore wing; 12, pronotum, lateral aspect; 13, pronotum, dorsal aspect; 14, hind leg, lateral aspect; 15, head, anterior aspect; 16, head, dorsal aspect; 17, head, lateral aspect. From: Hong et al. (2011).

FIGURES 35–42. Parastephanellus brevistigma Enderlein, ♂, holotype. 35, fore wing; 36, pronotum, lateral aspect; 37, pronotum, dorsal aspect; 38, hind coxa, latero-dorsal aspect; 39, hind coxa, dorsal aspect; 40, head, anterior aspect; 41, head, dorsal aspect; 42, head, lateral aspect. From: Hong et al. (2011).