COLEOPTERA 241 



(113) Proterhiims ferrtigineus, sp. nov. 



Elongatus, ferrugineus, elytris saepe nigro-notatis, setis appressis erectisque ves- 

 titus, hand squamosus. Antennae concolores, ferrugineae. Pronotum haud latum, setis 

 appressis, aliisque curvatis et suberectis latera versus vestitum, plus minusve evidenter 

 3-impressum, antice saepe abruptius constrictum. Elytra fortiter elongata, haud squa- 

 mosa, setis erectis brevissimis, aliisque longioribus, conspicue et densius vestita, fortiter 

 dense punctata, basi scutellum juxta utrinque tuberculata, angulis humeralibus productis 

 et subacutis. Femora postica gracilia, parum fortiter clavata. Abdominis segmentum 

 primum ventrale circa medium parum distincte punctatum, granulatim asperulum. Z ?■ 

 Long. 3 — 4'2 mm. 



Very closely allied to the Oahuan P. longuliis, of which species it is the repre- 

 sentative on Hawaii. Of P. longulits I have only seen the types in Dr Sharp's 

 colkction, but P. feri'-ugineus is no doubt on the average a larger species, and yet has 

 the hind femora still less clavate, and also appears to differ slightly in the sculpture and 

 clothing of the elytra, and in other small points. 



Hab. Hawaii (4000 ft.). In the leaf-stems of the tree-ferns, to which P. longuliis 

 is also attached. 



(114) Proterhinus similis Blackb. 



Proterhimis similis Blackburn, Tr. Dublin Soc. iii. 1885, p. 170. 



Species maxime variabilis, antennis nigris vel nigrescentibus, articulis 2 basalibus 

 haud distincte rufis, elytrorum basi saepe emarginata, sed angulis humeralibus ipsis 

 haud acute productis, saepe minus distinctis. ^ %. Long. 2 — 3 "5 mm. 



This species is so extraordinarily variable, that it would be useless to draw up any 

 lengthy and minute description, as it would apply to but few examples. It belongs to 

 the section in which the humeral angles themselves are not distinctly produced forwards 

 and acute, although the base of the elytra is often emarginate. The insect is black, red, 

 or parti-coloured, the elytra sometimes entirely covered, sometimes nearly free from 

 squamosity, which varies in colour from golden to grey ; sometimes they are maculately 

 squamose. Often they are depressed or flattened, often evenly convex, but nearly 

 always they appear slightly elevated at the extreme base near the scutellum, and at that 

 point have a small area along the suture free from squamosity, even when elsewhere 

 they are entirely covered. The antennae are exceedingly variable, short or of medium 

 length, with the joints robust and minutely asperated, or decidedly elongate, even the 

 second joint being sometimes somewhat long and slender, and there are various inter- 

 mediate conditions. In colour they are black, even the basal joints being black or at 

 least dark. This character readily distinguishes the species from the other species of 

 this group (the Hawaii form oi P. decepior), which has the basal two joints (at least) of 



