4o8 FAUNA HAWAIIENSIS 



group, and distinctly narrower towards its extremity, the penultimate joints are not so 

 strongly transverse. The pubescence on the middle of the thorax is black, at the sides 

 grey. The elytra are shining black, the post-basal fascia of grey pubescence and the 

 two spots behind the middle are quite definite, although the hairs forming them are 

 not dense. The tarsi are yellowish. 



Hab. Oahu, Waianae Coast, i. 1901 (no. 780, Perkins). 



(6) Labrocerus laticornis, sp. nov. 



Niger, antennis articulis 3 — 6 pallidioribus ; elytris fasciis indistinctis pubescentiae 

 pallidae. Long. 2f — 2,\ mm. 



A small narrow form, with short broad antennae in the male ; in this sex the 

 intermediate joints of the antennae are only slightly paler, the fifth, sixth and seventh 

 joints are very short, transverse, eighth — tenth also very short, strongly transverse, 

 terminal joint large, as long as the four or five preceding joints together. The thora.K 

 is shining, but bears some pallid hairs, the basal lobe is strongly developed. There is 

 a good deal of pale hair on the elytra, but it forms only ill-defined fasciae. The legs 

 are black. Two specimens. 



Hab. Molokai, Pelekunu, x. 1893 (Perkins). 



Group 2. 



(7) Lahroccriis javnei Sharp. 



Labrocerus jaynci Sharp, Tr. Dublin Soc. iii. 1885, p. 148. 



I assign to this species a series of 21 specimens found by Mr Perkins on various 

 occasions on the island of Maui. Certain of the specimens are small, narrow and 

 depressed in form, and have the yellow marks on the elytra more or less reduced in 

 extent. In more convex specimens the yellow marks may be much more extensive, 

 and in one or two the front part of the thorax is red. 



Hab. Maui, Lanai. — -Maui: Haleakala, 5000 ft. v. 1896; Olinda, 3000 — 4000 ft. 

 V. 1896. — Lanai, 3000 ft. 11. 1894 (Perkins). 



(8) Labrocerus obscurus Blackburn. 



Labrocerus obscurus Blackburn, Tr. Dublin Soc. in. 1885, p. 149. 

 The type in the British Museum is in a very dirty state, but I believe it will 

 prove to be a species very closely allied to L. jaynei. 



Hab. Hawaii ; Mauna Loa, about 6000 ft. found by beating dead branches 

 (Blackburn). 



