COLEOPTERA 203 



smaller, but are themselves of different size. The smaller example is a very fresh one 

 and not quite mature, it being of a generally more pallid colour, and the legs and 

 antennae are entirely red. These examples are marked as P. vesiitus, var. b and van c, 

 and bear the number 352. 



Hab. Oahu. Mountains near Honolulu, 2000 — 3000 ft. ; i ? taken in the winter 

 of 1892 ; 'mountains Oahu' (Blackburn). 



(37) Protcrhiiius denudatus, sp. nov. 



Elongatus, rufescens, elytris plus minusve nigro-notatis, parce aureo-squamosus. 

 Antennae nigrae, articulis basalibus rufis, clava vix distincte 3-articulata. Oculi minus 

 fortiter prominentes. Pronotum aequaliter, nee dense, aureo-squamosum, crebre 

 punctatum, evidenter 3-impressum, antice haud abrupte constrictum. Elytra parce 

 aureo-squamosa, setisque albidis brevioribus vestita, % fortissime elongata, fere aequaliter 

 convexa, humeris acute productis. ^ %. Vix 3 mm. 



In the elongate form (especially of the $), in the colour and clothing this species 

 is remarkably similar to Proterhinit.s detritus from Lanai. It lacks, however, the 

 extremely abrupt constriction of the prothorax in front, the second joint of its antennae 

 is less short, and they themselves are only red at the base. The rostrum of the ? 

 detritus, however, is so different, being very coarsely sulcate, that it is doubtful whether 

 the two are in reality at all closely allied. The t of the two examples examined is 

 larger and wider, and much less elongate, than the ?, but I suspect that this is not 

 usually the case, but rather an individual variation. A second male, taken in the other 

 mountain range on Oahu, I refer at present to this species as a variety, but it is very 

 likely a distinct species. It differs in being of a more obscure red colour, with the 

 antennae entirely red, and is as narrow and elongate as the $, there are traces of whitish 

 squamosity on the elytra, their erect white setae are longer, and they are faintly 

 impressed at the base. 



Hab. Oahu. One of each sex taken in the mountains near Honolulu (2000 — 

 3000 ft.) ; a variety of the t in the Waianae mountains. 



(38) Proterhinus compadus, sp. nov. 



Nigricans, elytris plus minusve rufescentibus. Caput cum pronoto aureo-squam- 

 osum. Antennae mediocriter graciles et elongati. Pronotum obscure 3-impressum. 

 Elytra albido-squamosa, setisque albidis erectis brevioribus sat conspicue vestita, fortiter 

 denseque punctata, longitudinaliter subcarinata, basi scutellum juxta utrinque tuber- 

 culata, humeris productis, minus acutis, basi thoracis adaptatis. Rostrum % fortiter 



F. H. II. ^7 



