COLEOPTERA 



495 



more than half the size of A^. nietallcsccns. The metallic colour of the elytra is only 

 obscure. The thorax is a little straighter at the sides in each sex, so that the explanate 

 part of the side is narrower, and the punctuation and pubescence are rather finer. In 

 the male there is a more definite emargination of the apex 'of the pygidium. The 

 female of this species has the serial punctuation of the elytra more distinct than it is in 

 the male of its own species, or in the female of A'. ineta/Icscens. 



The var. kaiiaiensis of Mr Blackburn is now found to be a distinct species, q. v. 



Hab. Oahu. Mts. near Honolulu 2000 — 3000 ft. ; l^ack of Tantalus ; Honolulu 

 end of Koolau range ; Konahuanui Ridge ; Kawailoa gulch (from gulch itself and very 

 far up, no. 41); Waialua (Perkins). D. S. 



(5) Ncsopeh'iiiis kaiiaieHsis, Blackburn. 



Brachypeplus discedens var. kaiiaiensis Blackburn, Tr. Dublin Soc. iii. 1885, 



P- 137- 



% Depressus, testaceus, subtilius pubescens, prothorace fortiter transverso, elytris 



angustiore, antrorsum fortiter angustato, minus dense et fortiter punctato, angulis poste- 



rioribus fere rectis, elytris regulariter seriatim punctatis. Long. ^\. lat. \\ mm. 



Although I have seen only females I have no doubt this is quite distinct, and this 



indeed was Mr Blackburn's opinion though he treated the insect merely as a variety, 



under the idea that it might be a Kauai representative of A^. disccdciis. 



Hab. Kauai (Blackburn). D. S. 



(6) Nesopetimis omissus, sp. nov. 



Fusco-rufus, supra metallescens, antennis pedibusque rufis, illarum clava nigricante; 

 capite thoraceque dense punctatis : elytris parum discrete seriatim punctatis. Long. 4-|-, 

 lat. vix 2 mm. 



Mas., capite thoraceque densius punctatis baud nitidis. 



Though very closely allied to A^. metallescens, this is doubtless a distinct species. 

 Though the characters are slight they are sufficient to give A^. omissus a different facies. 

 The male is readily distinguished from the corresponding sex of A^. metallescens, by the 

 less broad and fiat thorax, the sides of which are only narrowly explanate. In the 

 female the punctuation of the thora.x is coarser and less dense than it is in the male, and 

 the e.xplanation of the sides of the thorax is greater. This sex has the thorax more 

 rounded at the sides than the corresponding sex of A^. metallescens, and consequently 

 the explanation of the sides is less at that spot : the punctuation is rather denser than 

 in the corresponding sex of A'^. metallescens. The eyes are rather smaller in omissus. 

 The pygidial characters are much the same in the two species. We have a series of 

 42 specimens. 



Hab. Kauai. Halemanu, 4000 ft. ; mts. above Waimea (Perkins). D. S. 

 F. H. HI. 64 



