A Revision of the Genus Cryptotympana (Homoptera, Cicadidae)

96 Masami HayashiColoration and markings very similar to those of insularis from the Andamans; headand thorax castaneous brown withsupra-antennal plate, pronotal inner area and a centralhastate obscure marking on mesonotum paler; abdomen dark castaneous, with 2nd and3rd terga clothed with white pollinosity on the lateral parts; lateral margin of8th tergumalso pollinose towards the basal margin.Venter of body castaneous brown without distinct markings or spots; mesokatepisternum,apical margin of 7th abdominal sternum, inner margin of 9th segment andapex of tibia more or less infuscated, and on the contrary, metaprepisternal process paler;inner part of abdominal pleuron and lateral margin of sternum clothed with whitepollinosity.Wings hyaline, very slightly suffused to tawny towards the base; veins pale ochreousbasally (except for the vein Sc+R fuscous) and fuscous apically; basal cell and base of cell1A translucently ochreous; narrow fascia appearing along veins CuP, 2A and 3A ofhindwing fuscous; fuscous round spots on 1st and 2nd cross veins of forewing rather faint.Head slightly wider than pronotum; eye large, nearly 1/2 the width of vertex;frontoclypeus roundly swollen anteriad; pronotum nearly trapezoidal, with the lateralmargin hardly sinuate; mesonotum convex dorsally; cruciform elevation widely depressed;abdomen conical, shorter than distance between head and cruciform elevation; a centralcaudal beak of 9th abdominal tergum long and acutely lengthened and narrowed towardsthe apex; mesepimeron small and triangular; caudal margin of 7th abdominal sternumdeeply notched at the middle;9th tergum rather short and conical,ca 2X as long as wide;veins IM and 2M of hindwing fused in basal 1/4; cell CuP distinctly wider than cell 1Ainhindwing; hindwing rather evenly rounded, ca 1/2 the length of forewing.Body length (4): 33 mm. Expanse of forewings (4): 103mm.Distribution. Indonesia: Enggano.This species is represented only by 14 specimen; in spite of a new species, it isimpossible to determine the species-group to which it belongs.Key to the species of the genus Cryptotympana1. Forewing with basal 1/2 black or much infuscated, extending to or slightlybeyond nobal line '••'• 2- Forewing with black (or fuscous) and/or opaque parts (black part not spreadto nodal line), or without them 62. Black part on forewing also appearing along the costal margin towards theapex; venter of abdomen as well as f operculum almost entirely reddishorange 3- Black part on forewing not appearing along the costal margin, and apical 1/2hyaline, sometimes much smoky; venterofabdomen (w/ f operculum) mostlyblack 4