COLEOPTERA 665 



(13) Proterhinus pipfiiri, sp. nov. 



Rufescens vel sordide rufus, elytrorum marginibus et saepe maculis dorsalibus 

 nonnullis nigricantibus aut fuscis, pedibus rufis, nonnunquam sordidioribus, antennis clare 

 rufis, apices versus nigris. Pronotum aureo-squamosum, lateraliter plaga densiore 

 utrinque vestitum. Oculi minores ; antennae graciles, fortius elongatae, articulo primo 

 robusto et elongate, tertio gracili, elongate, quam quartus multo longiore, clava distincte 

 3-articulata. i\rticulus tarsorum anticorum lobatus sat magnus. Elytra plerumque 

 maculatim squamosa, setisque erectis albidis subconspicue vestita, angulis humeralibus 

 baud productis. Long. 175 — 2'25mm. 



This small species is best distinguished by the more than usually elongate antennae, 

 with clear red basal joints. The elytra in fresh e.xamples bear more or less distinct 

 roundish spots of pale squamosity and in most individuals, especially of the male sex are 

 rather wider towards the base than in most species. These characters and the rufescent 

 colouring render this species rather easy to distinguish. 



Hab. Oahu ; mountains near Honolulu i 200— 1800 ft. Attached to /'///wrw.y. 



Protcrhimis I'icinits Perk. 



P. vicimis Perk., huj. op. 11., p. 212. 



I have examined many additional specimens of this small species. It varies in 

 colour, in the shape of the prothorax and in the length of the antennae, while very 

 rarely these are entirely black. The series now before me were all taken in the same 

 locality and at the same time. Whether the species is really distinct from some of the 

 allied species on Kauai is at present uncertain owing to the great variability. 



P rot crhi tuts pusillns Sharp. 



P. piisilhis Sharp, huj. op. 11., p. 212. 



I have considered a long series of specimens, collected from all parts of Oahu, to 

 be the above species. The variation is considerable ; the legs may be entirely black or 

 entirely red, or red in parts. The antennae are often wholly black or dark-coloured, or 

 they may be black, with the base red. The beetle itself varies in colour from black to 

 reddish. The pronotum has always a dense patch of squamosity along the sides, and is 

 much wider in some examples than others, as is also the case with the elytra. 



P . pusillns van snbpusilhts var. nov. 



This form may be a distinct species ; it is usually narrower than the typical form, 

 the elytra are generally for the most part dull red, and the dense patches of squamosity 

 at the sides of the pronotum are dilated or curved inwards at about the anterior third ot 

 its length and may even meet there. This variety is common in the Waianae range. 



Hab. Oahu; in all localities from 1500ft. upwards. Attached principally, if not 

 solely, to Pt'lea. 



