COLEOPTERA 443 



(7) Goiiioryctus sp. ? 



A single female, in bad preservation, found on Oahu, differs from G. suavis by the 

 pygidium being more rounded at the tip, and the sides of the thorax more narrowly 

 explanate. It may prove to be a distinct species. 



Hab. Oahu. Halemano, 2500 ft., under bark, January 1S93 (Perkins). 



(8) Gonioryctits haleakalae. sp. now 



Sat latus, m.inus depressus, testaceo-ferrugineus, capite, elytris antennisque 

 extrorsum fuscescentibus ; prothorace anterius rotundato, basin versus angustato, dorso 

 convexiusculo, inimpresso, densius punctate ; elytris obsoletius sulcatis et punctatis. 

 Long. Corp. 7 mm., lat. 2\, long, prothoracis if, lat. prothor. 2, long, elytr. 2^ mm. 



An eleeant insect allied to G. maniensis, but narrower, with a more yolden 

 pubescence, and in the male sex readily distinguished by the very finely punctate 

 pygidium, which moreover is less elongate. -I know only the male. The thorax is less 

 widely explanate at the sides than it is in most of the other large species ; it is very 

 densely punctate. The elytra have only very narrow and obsolete grooves, and an 

 excessively fine punctuation ; at the base they are yellow. The abdominal punctuation 

 is very fine ; the pygidium is not elongate, and is almost truncate at the tip, the hind 

 angles slightly rounded : the last ventral plate is almost straight behind. Three males. 

 Also one female that I refer with some doubt to the species. 



Hab. !Maui, Haleakala, 3000 ft. (no. 772, Perkins). 



(9) Gonioryctns clegans, sp. no\'. 



Sat latus, minus depressus, flavo-ferrugineus, fusco-variegatus, aurato-pubescens ; 

 prothorace antrorsum rotundato, posterius angustato, dense punctato, disco convexiusculo, 

 inimpresso ; elytris obsolete punctatis et sulcatis. ^ Long. corp. ^\ mm., lat. 2|, long, 

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



Like G. haleakalae, but a little narrower and more convex. Thorax but little 

 explanate at the sides, densely punctured, convex on the middle, without impressions or 

 channel. Elytra with rather broad but very shallow grooves, and very indistinct 

 punctuation. Pygidium of male acuminate in the middle : last ventral feebly bisinuate : 

 tip of supplementary segment slightly emarginate. One specimen. 



Hab. Molokai, mountains, vi. 1896 (no. 588, Perkins). 



(10) Gonioryctns calvits, sp. nov. 



Sat latus, testaceus, vage infuscatus, subnitidus, minute pubescens. Long. 7^ mm., 

 lat. 2^, long, prothoracis if, lat. prothor. 2;^^, long, elytr. 2f mm. 



Resembles G. suavis and 6^. haleakalae in form, but distinguished from them by the 



