COLEOPTERA 



20I 



(33) Proterhinus deinops, sp. nov. 



Piceus, elytris rufescentibus, nigro-maculatis. Caput post oculos fortisslme con- 

 strictum. Oculi fortissime prominentes, postice acuti. Antennarum articuli 3 apicales 

 clavam distinctam formantes. Pronotum 3-impressum, sat elongatum. Elytra grosse 

 et profunde punctata, basi utrinque juxta scutellum tuberculata, humeris acutis, fortiter 

 productis. ^ $. Long, circiter 3 mm. (Plate IX. fig. 11, $.) 



One of the most remarkable species of the genus, having the head very strongly 

 constricted behind the eyes, so that the front and vertex are separated by a strong 

 ridge. The eyes themselves are excessively prominent, and are produced behind into 

 a distinct point. The antennae are not long, the 9th joint is much wider than the 8th, 

 so that the club is very definitely formed of three joints. The thorax is unusually long 

 and narrow. The elytra have a deep coarse puncturation, and their humeral angles are 

 very strongly produced, and acute. In fresh examples their red portions are covered 

 with pale squamosity, which is absent on the black spots ; the erect setae appear to be 

 few, and not conspicuous. 



Hab. Oahu, Waianae mountains, 3000 ft. Rare ; 6 examples were taken in 

 February 1896. 



(34) Proterhinus squamicollis, sp. nov. 



Haud latus, niger, piceus, vel rufescens, pallide squamosus. Antennae graciles, 

 clava distincte 3-articulata. Oculi magni, prominentes, coniformes. Capitis vertex a 

 fronte cannula transversa distincte separatus. Pronotum haud latum, antice fortiter 

 angustatum, et depressum, squamis pallidis ubique dense vestitum, impressionibus 

 duabus posterioribus sat distinctis, lateribus fortiter rotundatis. Elytra distincte 

 punctata, subinaequalia, squamis pallidis maculatim, necnon setis elongatis pallidis 

 conspicue vestita, basi scutellum juxta utrinque tuberculata, tuberculis albido-squamosis, 

 humeris productis et acutis. $%. Long. 2'25 — 3 mm. 



A distinct species, and readily distinguished from the other Oahuan Proterhini by 

 the following combination of characters. Eyes large, prominent, and of conical form ; 

 a distinct transverse ridge between the front and vertex of the head ; prothorax densely 

 squamose all over, much narrowed and deeply impressed in front, the sides very 

 strongly rounded ; elytra generally with more or less evident longitudinal ridges, with a 

 tubercle on each side of the scutellar region at the extreme base, the shoulders produced, 

 acute, and much deflexed ; their squamous covering is more or less broken up to form 

 a number of spots, and the erect setae are long, fine, and quite conspicuous. 



Hab. Oahu. Widely distributed in the Koolau range, but rare. Ten or eleven 

 examples taken at altitudes of 2000 — 3000 ft. 



