214 FAUNA HAWAIIENSIS 



general appearance it is very different to lecoKtei, but in reality the two are really 

 related. 



Colour ferruginous, as also the squamosity, the elytra sometimes partly or even 

 entirely black. Eyes large, strongly prominent ; antennae slender, with evidently 

 3-jointed club, generally entirely of a clear red colour. Prothorax subelongate, densely 

 squamose, with three well-marked impressions, at the sides with some curved suberect 

 setae. Elytra elongate, subparallel-sided, tuberculate at the base on either side of 

 the scutellar region, depressed between these tubercles and the produced humeral 

 angles, flattened or even somewhat depressed dorsally between the well-marked longi- 

 tudinal ridges, which terminate abruptly behind. When the elytra are reddish in colour 

 they have a ferruginous squamosity, but when their colour is black the squamosity dis- 

 appears ; erect, thin setae are also scattered over the surface, especially at the sides 

 and posteriorly. Lobes of the front tarsi somewhat large. 



Hab. Maui, Haleakala (5000 ft.), in the same localities as P. lecontei, but with 

 very different habits, this species being found only on a species of fern, while P. lecontei 

 frequents one of the forest trees. 



(62) Proterhinus tuberculiceps, sp. nov. 



Rufescens, elytris plus minusve nigro-maculatis, antennis, pedibusque omnibus 

 rufis. Caput inter oculos fortiter bituberculatum. Oculi fortiter prominentes. 

 Antennae graciles, elongatae, clava distincte 3-articulata, sat elongata. Pronotum 

 perinaequale, fortissime 3-impressum, impressione anteriore transversa, antice abrupte 

 constrictum. Elytra longitudinaliter subcarinata, setis erectis gracillimis, sat conspicuis, 

 vestita, humeris fortiter productis. Z%- Long. 3*5 mm. (Plate IX. fig. 18. Z-) 



A very distinct species, entirely reddish in colour, except for some small, and more 

 or less inconspicuous, dark spots on the elytra. The eyes are strongly prominent, and 

 there is a strong tubercle close to the inner margin of each. The prothorax is very 

 uneven, the anterior impression extending right across it, while the two posterior ones 

 are deep, but smaller, and roundish. In front the constriction is strong and abrupt, 

 and there and at the sides the suberect, curved setae are very evident. The lobes of 

 the front tarsi are well developed. The elytra have their shoulders strongly produced, 

 the suture a little raised, and a sufficiently evident longitudinal ridge running backwards 

 from the humeral angles of each. The erect setae are long, fine, and conspicuous. All 

 the femora are strongly clavate, a little more so in the ^ than in the ?. The rostrum 

 of the % is only moderately long, and is smooth and shining, with the longitudinal 

 grooves fine. 



Hab. Maui, Haleakala (4000 ft.) ; 2 ^, i ? taken. 



