1920.] NATURAL SCIENCES OF PHILADELPHIA. 79 



ences noted may be due wholly to individual recession of coloration 

 from a type exactly similar to that shown by the male of meleagris 

 at hand. 



As in many genera including strikingly colored species, it is clear 

 that features of coloration, some of which are unquestionably of 

 doubtful specific diagnostic value, have been unduly emphasized 

 in past literature, while a number of important structural characters 

 have been overlooked or given but scant attention. 



Type. — cf ; Labuan Island, British North Borneo. [Hebard Col- 

 lection Type No. 526.] 



Size medium for the genus, tegmina and wings very elongate, 

 proportionately much as in meleagris and considerably longer than 

 in granulicollis, though the pronotum is decidedly smaller than in 

 7neleagris and of much the same size as in granulicollis .^^ Head 

 with eyes greatly projecting, as characteristic for the genus, but 

 distinctly less than in this sex of meleagris or granulicollis. Spine 

 above ocelli well developed, as in meleagris. Pronotum''*^ with 

 dorsal surface feebly granulate; lateral margins very slightly rough- 

 ened, denticulations obsolete except faintly indicated on cephalic 

 margins of supra-coxal expansion, much as in granulicollis, slightly 

 weaker than in meleagris; margins of neck, shaft and supra-coxal 

 expansion all equally convex, giving the pronotum a more cruciform 

 shape than in yneleagris, which shape is practically lost in granu- 

 licollis; neck short, no longer than its proximal width. Tegmina 

 and wings elongate, proportionately slightly narrower than in mele- 

 agris, of same proportions as in granulicollis, but more extensive 

 in proportion to body bulk than in that species. Wings with a 

 proximal suffusion of deep vinaceous, as in gr-anulicollis and meleagris, 

 markings of a much reduced but similar pattern to those of 

 meleagris. Ninth dorsal abdominal segment with latero-caudal 

 angles moderately produced and bluntly rounded, similarly pro- 

 duced but acute in meleagris, more decidedly produced and acute in 

 granulicollis. Supra-anal plate with margin between the cerci 

 broadly convex. Cerci moderately stout, tapering sharply at ex- 

 tremity to acute apex, in meleagris tapering more gradually distad 



®^ Males of these species are compared. We have no material to show the 

 differences which exist between the sexes in the various structural and color 

 features. 



^^ From Saussure's description of the female sex of granulicollis, we beUeve 

 that the pronotum in females of these species will be found to be more heavily 

 granulate, with margins distinctly denticulate. 



