September, 1915.] 249 



NEW SPECIES OF CYATHIGEB (Fam. PSELAPHIDAE), 



FROM BOENEO AND PENANG. 



BT G. E. BRYANT, F.E.S. 



(Plate XX). 



This paper deals with nine new species of Cyathiger from Borneo 

 and Penang. This genus, so far as at present known, has a range 

 from ]Sr. S. Wales to Sumatra, via New G-uinea, Borneo, Singapore, and 

 Penang. It is strange that no representative has as yet been recorded 

 from Java, as a good many species of Pselaphidae are known from 

 there ; but it is possible that Cyathiger may not occur in that island, 

 as I have noticed in woi'king out my Bornean collection of Coleoptera 

 how much more closely that island is related to Sumatra than to Java. 

 The genus will undoubtedly prove to be a very large one, when the 

 islands from Borneo to N. Queensland are thoroughly explored, and 

 the Malay Peninsula and Siam will probably produce many species. 

 The three described by Eeitter from Borneo were apparently taken at 

 light, and were all (^ (^ . I never succeeded in capturing any at light, 

 and mine were collected by sifting leaves in the jungle, with the 

 exception of one species found under bark with ants. In sifting leaves 

 they are difficult to see, as they always roll themselves up into a 

 compact ball and remain motionless for some time, and the dead leaves 

 in thick jungle are always wet, and they are apt to stick to them. 



In Raffray's Groups I-V, the apical joint of the antenna in the ^ 

 is most remarkable, and he has suggested (Wytsman, Gen. Insect orum, 

 p. 301) that the last joint of the ? fits into that of the J* at the 

 moment of copulation, and I think his view will undoubtedly prove 

 correct, as in all the species of which I have the two sexes, the joints 

 will fit one within the other. 



I have collected altogether 18 species from Borneo, Penang, and 

 Singapore, and have taken C. impar Raffr., in the three islands — Borneo 

 being a new record for it ; also C. cribratus Ralfr., at Penang, and 

 0. heterocerus EafEr., at Singapore. The number of species described 

 is now 34, and I have six more from Borneo, mostly $ ? , which I am 

 unable at present to determine. It may be of interest to give the 

 number of described forms known from each island, and the number 

 endemic to each : — Sumatra, 7 : all peculiar ; Penang, 7 : 5 peculiar ; 

 Singapore, 5: 3 peculiar; Borneo, 12: 11 peculiar; New Guinea, 4: 

 all peculiar ; Australian, 2 : both peculiar. For EafEray's Table and 



