COLEOPTERA 187 



different to the general covering. Elytra short, seen from the side strongly convex 

 longitudinally, with golden or greyish appressed squamosity, and sparse erect white 

 setae, which are chiefly found towards their apex, the basal portion is transversely 

 flattened or depressed. Humeral angles widely and extremely strongly produced. 

 Tibiae, tarsi, and sometimes the femora, red ; lobes of the front tarsi of moderate size. 

 Basal segment of the abdomen beneath with the puncturation obsolete, at least over its 

 middle portion. Hind coxae widely separated, the distance between them considerably 

 greater than the length of the metasternum. 



Hab. Kauai mountains (4000 ft.). Differs from P. basalis Sh. in the smaller 

 average size, more strongly produced humeral angles of the elytra, their less numerous 

 erect setae, and the patches of dense squamosity in front of the posterior impressions of 

 the thorax. Both species vary much, but no doubt they are distinct. 



(5) Proterhinus basalis Sharp. 



Proterhimis basalis Sharp, Tr. Ent. Soc. London, 1879, p. 98. 



I have examined a series of examples of this species. The humeral angles of the 

 elytra are a good deal more strongly produced in some individuals than others. The 

 squamous covering is sometimes of a ferruginous colour, but more often greyish. The 

 shape of the thorax is variable, but usually is more or less abruptly constricted in front. 

 The length of the insect varies from 2 '5 — 4 mm. 



Hab. Kauai mountains (2000 — 4000 ft.) ; not common, but widely distributed. 



(6) Proterhinus dubiostis, sp. nov. 



Sat latus, rufescens vel piceus, aureo-squamosus. Oculi parum fortiter prominentes. 

 Antennarum articuli 3 apicales clavam formantes. Pronotum sat evidenter 3-impressum. 

 Elytra lata, aureo-squamosa, minus fortiter nee dense punctata, basali parte plus minusve 

 impressa, scutellumque juxta utrinque tuberculata, setis erectis paucis, brevibus et 

 inconspicuis, humeris fortiter acute productis. Abdominis segmentum primum ventrale 

 ad medium vix evidenter punctatum. $ $. Long. 2 — 3 '2 mm. 



The above characters are drawn up from typical examples, but as a matter of fact 

 almost all the structures vary in this species, and series of individuals from different 

 localities nearly always present more or less considerable differences. Thus in the 

 typical examples the antennae are somewhat stout, the club distinctly of three rather 

 wide joints. In some localities the antennae are decidedly more elongate and slender. 

 The squamosity appears to be always of a golden colour. The thorax has three impres- 

 sions and is not very densely squamose. The elytra have the humeral angles strongly 



F. H. II. 25 



