100 BLATTIDAE FROM NORTHERN SARAWAK. 



Hah. Numerous (f and 9 specimens. Mt. Murud, 6500 

 feet, Mt. Dulit and Tutau River. As the Oxford Museum 

 contains an example, not named, taken by E. Shelford on 

 the Larut Hills. Perak, 4000--4o00 feet. Fehruary-March, 

 1905, I dedicate this species to his memory. 



Closely allied to H. nigra Bhelford. from Kuching. Sarawak, 

 the type of which, though much multilated. is in the Oxford 

 Museum. But though the two species agree in the structure 

 of their wings, H. nigra is readily distinguished by the apex 

 cf its tegmina being reticulate. Both tegmina and wings of 

 H. shelfordi show a remarkable resemblance to those of 

 Latindia signata Brunner (coll. Fieber). See his Nouveau 

 Systeme des Blattaires, pi. x. fig. 49. Curiously enough, 

 Brunner, in his remarks on Latindia Stal (op. cit. p. 844), 

 says : — "T.es ailes me sont inconnues," a statement difficult 

 to reconcile with his rareful illustration. 



Ctenoneura* n.g. 



Pronotum sub-circular, with no pubescence. Tegmina much 

 exceeding the abdomen, overlapping each other, horny, not 

 pubescent, venation clearly defined. Wings as long as the 

 tegmina in both sexes, ulnar vein with parallel, curving, 

 comb-like arranged bi'anches, anal area not fan-like folded. 

 Supra-anal lamina (cf and 9) short, transverse. Subgenital 

 lamina in the cT narrow, crescent-like, with 2 styles; in the 

 9 ample, globose, with shallow cleft. Cerci long. Arolia 

 minute or absent. 



This is a somewhat aberrant genus. It differs from the 

 t^^ical Corydinae by ha\'ing the supra-anal lamina of both sexes 

 not produced, but narrow, and throucfh both pronotnm and 

 tegmina being smooth, not pilose. However, its unarmed 

 posterior femora, the minute or absent arolia, and especially 

 the venation of the wings show that its proper place is in this 

 pub-family. The entire agreement of the venation of its 

 wings with that of Euthyrrhapha Bnrmeister, is very striking, 

 though its tegmina show neither the straight suture nor the 

 pilosity of that genus. 



*FrotD the comb-like arrangement of the branches of the ulnar vein 

 in the wings. 



