100 Mr. Arthur M. Lea's Revision of the 



are from Sarawak and Peuang, and have the alternate 

 costae of the elytra evidently strongly elevated. 



The figure of Dihammatus crihriyennis (111. Typ. Col., 

 Plate VII, fig. 6) will give a good general idea as to the 

 shape of both the species. 



BREVicoRNis, Lea {Caloclwoiiius), P. L. S., N.S.W., 1898, 

 p. 561. 



N. S. Wales : Galston. 



PILOSICORNIS, Lea {Galochromus), I. c, p. 562. 

 Queensland : Barron Falls. 



Genus Calochromus, Guer., Ann. Soc. Ent. Fr., 1833, 

 p. 158: Lacord., Gen. Coleopt., IV, p. 802; Wat., 

 Trans. Ent. Soc. Lond., 1878, p. 96 ; Jli. Typ. Col., p. 2 ; 

 Blackb., P. L. S., N.S.W., 1891, p. 528 ; T. R. S., S.A., 

 1900, p. 58. 



This genus is readily distinguished from the other 

 Australian Zycides by the uncovered head, the prothorax 

 transversely oblong and deeply impressed in places but 

 not divided into distinct areolets, and by the elytra without 

 large punctures. In the male the head is sometimes 

 armed with a curved, beak-like process, which projects 

 over the muzzle. Two species {Jbrcvicoo^nis and pilosicornis) 

 previously referred by me to Calochrotnus are now referred 

 to a new genus {Dumhrellia). 



The following species are unknown to me : — 



Distingitendus, Fairm. This should be very distinct as 

 its markings (prothorax entirely pallid, elytra black 

 except for a small part of the base, etc.) are very different 

 from those of all the Australian species hitherto described. 



Rostratus, Blackb. This species has the head unarmed 

 and is evidently something like guerinii, but it has a short 

 rostrum and the elytra entirely pallid. 



The others may be tabulated as follows : — 



A. Head armed in the male. 



a. Prothorax partly red mastersi, n. sp. 



aa. Prothorax entirely dark. 



b. Elytral markings widened pos- 

 teriorly simillimns, Blackb. 



