446 FAUNA HAWAIIENSIS 



G. suavis. It is of more elongate form than G. latiis, and has the elytra more definitely 

 sulcate and punctate, and the margin of the male pygidium somewhat acuminate in 

 the middle. 



Hab. Oahu, in the stems of a lily near the summit of Konahuanui (Blackburn). 



(15) Gouioiyctns dissimilis, sp. nov. 



Latus, ferrugineus, extense infuscatus, nitidus, fere epubescens ; elytris vix sulcatis 

 sed minus subtiliter seriatim punctatis. Long. corp. % vix 6 mm., lat. 2-^, long, 

 prothoracis if, lat. prothor. 2|, long, elytr. 2^ mm. 



Though we have only one specimen of this species it is so distinct that a mistake 

 can scarcely be made about it. The individual is a female, and has the pygidium 

 notched at the extremity like G. latus, to the smaller forms of which G. dissiniilis is 

 somewhat similar : but the pubescence on the surface is excessively minute, and the 

 series of punctures in the shallow grooves on the elytra are more distinct than usual : 

 and the sides of the thorax are less broadly explanate. 



Hab. Oahu, Honolulu, 2000 ft. 27. xi. 1892 (Perkins). 



(16) Gonioryctiis /anaicnsis, sp. nov. 



Latus, sordide testaceus, antennarum clava fusca ; thorace transverso lateribus 

 late e.xplanatis : elytris late sed obsolete sulcatis, obsoleteque punctatis. % Long. 7 mm., 

 lat. 2-|, long, prothoracis if, lat. prothoracis 2-1-. long, elytr. 3 mm. 



A single specimen — female — from Lanai belongs to a species that may be the 

 representative on Lanai of the Oahuan G. latus. It has no notch at the apex ot the 

 pygidium, the tip of which is rounded without any trace of angles, while the last ventral 

 is truncate, with much ciliation on each side. The supplementary segment is not 

 emarginate, but is narrow at the tip and slightly depressed there. The sulcation of 

 the elytra is a little deeper, the pubescence a little less developed. The form of the 

 thorax is very much like that of G. latus, except that the whole insect is comparatively 

 a little narrower ; the punctuation of the thorax too is very like that of G. latus. I do 

 not think the specimen can be a variety of G. calvus, as the thorax is more broadly 

 explanate at the sides, and none of the details quite agree. 



I also consider as being the same species another female considerably smaller, 

 only 5 mm. long, but in other respects not very different. 



There is also a very fine male, ']\ mm. long, that I believe to be also a specimen 

 of G. lanaiensis. It is darker in colour, and has the thorax longer and more densely 

 punctured ; the pygidium has the apex rounded, and the last ventral is almost straight 

 at the hind margin. 



Hab. Lanai, 2000 — 3000 ft. (nos. 80, 84 Perkins). 



