COLEOPTERA 



217 



prominent and subconical. In the Z the lobes of the front tarsi are largely developed 

 and wide, but evidently less so in the female, in which sex the rostrum is smooth and 

 shining, with two fine longitudinal grooves. The elytra have only faint, sometimes 

 indeed no traces of longitudinal ridges, but the suture itself is quite evidently raised. 



Hab. Maui, Haleakala ; a few examples taken at and below an elevation of 

 4000 ft. 



(67) Protcrhinus heniichlorus, sp. nov. 



Nigricans, pallide squamosus, antennis pedibus elytrorumque basi plus minusve 

 rufescentibus, P. /^/«;/t77r// cognatissimus. Antennae, oculi, tarsorumque anticorum lobi, 

 mediocres, haudquaquam insignes. Pronotum minus dense squamosum, setis curvatis 

 parum conspicuis, 3-impressum, impressione antica transversa, duabus posticis distinc- 

 tissime rotundatis. Elytra plus minusve nigricantia, plaga basali conspicue pallido- 

 squamosa parceque nee fortiter punctata, sutura subelevata, humeris productis. Femora 

 postica haud fortiter incrassata. t%. Long. 17 — 2-8 mm. 



A small species with rather a distinctive appearance, owing to a patch of dense 

 pale, often nearly white, squamosity, which covers the basal third or even half of the 

 elytra, over which part the puncturation appears sparse and feeble. The erect setae are 

 chiefly placed on the hinder part of the elytra, but they are sparse and not very con- 

 spicuous. The femora are only moderately robust. Closely allied to P. hmieralis 

 but distinguished by the less developed tarsal lobes, eyes, and antennae, the less 

 incrassate femora, and other less important characters. As in that species the elytra 

 are without evident longitudinal ridges, and there is none between the front and vertex 

 of the head. 



Hab. Maui, Haleakala (5000 ft.) ; a few examples of each sex taken. 



(68) Proterhinus humeralis Sharp. 



Proterhimis humeralis Sharp, Tr. Ent. Soc. London, 1879, p. 96. 



A rather distinct species, at least in the ^. Apparently allied to P. sternaiioides, 

 but a decidedly narrower and more elongate insect. The antennae of the ^ are rather 

 longer and at the same time stouter than in most of the species, and the lobes of the 

 front tarsi are strongly developed, although not to the extent of those of P. sierna/is. 

 In both sexes, but especially so in the $, the femora are more strongly incrassate than 

 is usual, but all the specific characters of the ? are much less pronounced than in the $. 

 There is no ridge formed between the front and vertex of the head. 



Hab. Maui, Haleakala (4000 — 5000 ft.); I have seen only the two type specimens, 

 and two or three others taken by myself. 



