Tetricissus philo ( Fennah, 1978 ) Zhang, 2017

Zhang, Yalin, 2017, New Oriental genera in the family Issidae (Hemiptera: Fulgoromorpha), Zootaxa 4312 (2), pp. 355-367 : 360-362

Tetricissus philo ( Fennah, 1978) n. comb.

Tetrica philo Fennah, 1978: 269 .

Redescription. Length: male (including forewings) (N=2): 6.7–9.0 mm; female (including forewings) (N=2): 9.1 mm.

Vertex tawny, 3.2 times wider at base than long in midline; anterior, lateral and posterior margins all elevated and brown ( Fig. 19 ). Frons tawny, 1.1 times broader at widest part than long in midline, 1.4 times broader at widest part than apical margin; anterior and lateral margins carinated and dark brown, median carina tawny; apical part of frons and lateral areas with around 15 light yellow tubercles on each side becoming larger from apex to lateral area ( Fig. 21 ). Postclypeus tawny ( Fig. 21 ). Compound eyes dark tawny, supported by tawny callus ( Fig. 19 ). Gena yellowish brown ( Fig. 20 ). Pronotum tawny, 3.1 times wider at base than length in midline; anterior and posterior margins carinated and brown, posterior margins carinated and brown ( Fig. 19 ). Mesonotum tawny, 1.8 times wider at anterior margin than long in midline ( Fig. 19 ). Forewings tawny, 2.2 times wider at longest part than widest part, costal margin widest at basal 1/ 3 in lateral view, anterior and posterior margins almost parallel, longitudinal veins dark brown and elevated ( Figs. 19, 20 ). Hind wings grayish brown. Legs tawny.

Male terminalia. Anal tube in lateral view extremely long and narrow; epiproct short, located at basal 1/3 of anal tube ( Fig. 24 ). Gonostylus triangular in lateral view, widest at middle, dorso-lateral margin elevated in apical part, caudo-ventral angle rounded ( Fig. 24 ). Capitulum of gonostylus with teeth on the apex and the antero-lateral part ( Fig. 24 ). Pygofer in lateral view long and slender, anterior and posterior margins nearly parallel, dorsal margin slightly sloping to posterior ( Fig. 24 ). Periandrium in lateral view with dorsal lobe slightly membranous in the dorso-apical part; pair of lateral lobes shorter than dorsal lobe, aedeagus with pair of short hook-like processes derived from its basal 1/4 directed to near base; ventral periandrium lobe little shorter than lateral lobe ( Figs. 25, 26 ).

Materials examined. 2♂♂ 1♀, Vietnam, Tonkin, reg. De Hoa-Binh, 1928, A. De Cooman ( MNHN); 1♀, Vietnam, Tonkin, Hoa-Binh, 1919, J. De. Cooman, R. Oberthur ( MNHN).

Figures

FIGURES 19 – 26. Tetricissus philo (Fennah, 1978) n. comb. 19. Adult, dorsal view; 20. Adult, lateral view; 21. Frons and clypeus; 22. Labels; 23. Hindwing; 24. Male terminalia, lateral view; 25. Phallic complex, lateral view; 26. Schemata of phallic complex. Scale bars 19 – 21, 23 = 1 mm, 24 – 25 = 0.5 mm.