COLEOPTERA 493 



Group 1. 



(i) Nesopctiinis tinctus. Sharp. 



Bj'achypcphis tinrtus Sharp, Tr. ent. Soc. London, 1879, p. 83. 



Haud latLis, parum convexus, subtiHter pubescens, testaceus, viricli-tinctus, elytris 

 interdum laete viridi-aeneis, interdum nii^ricantibus post scutclluni rufo-plagiatis, 

 abdomine medio fusco; capite dense punctato, ocuHs magnis; prothorace magno, dense 

 punctato, basi fere recte truncata, angulis posterioribus leviter obtusis haud rotundatis. 

 Long. 3|— 4i mm. 



Plate XIV. figs. iT^a and 13/;, Z last dorsal and ventral plates. 



There is a difference in the sculpture of the sexes, the prothoracic punctuation being 

 denser and finer in the female, especially on the anterior part. The male has the 

 pygidium (PI. XIV. fig. 13a) slender at the tip and with a distinct slight emargination 

 there, but the sides of the notch do not project as sharp teeth. The female has the 

 pygidium shorter and a little depressed in the middle at the tip but scarcely notched 

 there. 



The pair originally described consisted of two small individuals. Though the 

 species is apparently rare we have a series of 30 specimens collected by Mr Perkins, 

 and exhibiting the variation described above. 



The species makes the approach of Nesopeplus to Gonioyyctiis very evident. 



Hab. Oahu. Mts. near Honolulu, back of Tantalus, &c. ; Koolau, high mts. 

 ("from flower oi Astclia") &c. ; Wahiawa; Mokuleeia; leeside of Waianae mts. 3000 ft. 

 (Perkins). D. S. 



(2) Nesopetinns gonioryctoideSy sp. nov. 



Haud latus, parum convexus, subtiliter pubescens, fusco-testaceus, elytris viridi- 

 micantibus, abdominis prothoracisque marginibus testaceis ; thorace (maris) anterius 

 dense omnium subtilissime punctato, angulis posterioribus rectis. Long. corp. 4 mm. 



We have only three examples, males, but as its close relation to N. tinctiis fixes its 

 position unmistakably, I give the species a name. This male differs from the corre- 

 sponding sex of N. tinctus, by the much finer thoracic punctuation, and by the more 

 definite posterior angles. The apex of the pygidium is broader, depressed in the middle 

 with each angle slightly tuberculate. 



Hab. Lanai. 2000 and 3000 ft.; one labelled "mts. Koele" (Perkins). D. .S. 



(3) Nesopetimts nietallesccns, Sharp. 



Bj-acliypeplus vietallcsccns Sharp, Tr. ent. Soc. London, 18S1, p. 511. 



" Latiusculus, haud elongatus, depressus, fuscus, supra aenescens, prothoracis mar- 

 ginibus, antennis pedibusque testaceis, antennarum clava infuscata, subtiliter pubescen.s, 

 elytris obsolete punctatis, punctis seriatis subtilissimis." Long. 4 — 5^ mm. 



