A Revision of the Genus Cryptotympana (Homoptera, Cicadidae)

A Revision of the Genus Cryptotympana, II 67Figs. 131-133. Cryptotympana vesta (the vesta subgroup of the corvus group). 131: Head andthoracic nota.132, 133: Venter of abdomen.caudal margin of 7th sternum widely rounded in ff, and widely and gently emarginatein ^-^-; 4 9th tergum rather slender, 1.25 X as long as wide; precostal membrane offorewing very narrow; vein CuP of forewing slightly separated from vein 1A in basal 1/3.Male genitalia (Figs. 134-140). Pygofer barrel-shaped, widened before the middle,1.6-1.8X as long as wide, with apical part of the ventral margin slightly rolled inwards;ventral lobes of pygofer distinct, more or less protruding ventrally; uncus lobe relativelylong, more or less flattened dorsoventrally, curved in basal 1/2 and straight in the apicalpart, with rather truncate apex; theca long and somewhat flattened dorsoventrally,widened basad and much narrowed apicad, with a pair of apical projections, situated onthe lateral surface and hooked backwards; basal plates short, flat and oval in shape; vesicaeverted long and slightly bent upwards apically, without saccate process.Body length: f 27-31 mm, 4 23mm. Expanse of forewings: 72-86 mm.In comparison with the specimensfrom Bombay, W India, the 1f from Assam (BM)shows some differences as follows: head wider, not swollen anteriorly; pronotum nearlyparallel-sided; pygofernot narrowed basally, etc. In the extent of the present knowledge,however, this individual is considered to represent a geographic variation within vesta;detailed study on their relationships has to be reserved until a longer series of the materialis available.