2 38 FAUNA HAWAIIENSIS 



This species in its typical condition is distinct enough from any other of those 

 taken on Hawaii. The antennae (as above indicated) vary in stoutness, and the insect 

 varies greatly in size, while the colour is sometimes much obscured, dark varieties being 

 occasionally found. Minute examples naturally have the eyes and other parts less 

 developed. In general, the red colour, and strongly produced humeral angles of the 

 nearly evenly convex elytra, which are deeply and distinctly punctured (at least in clean 

 examples), and which have two distinct spots of whitish squamosity, one on either side 

 of the suture towards the apex, will distinguish it from the several following species, to 

 which it is most nearly allied. It may be observed that there is no distinct transverse 

 ridge formed between the vertex and front of the head as in some species on the other 

 islands, to which this is otherwise very similar in appearance. 



Hab. Hawaii, Kau district (4000 ft.) ; 40 or more examples taken. 



(107) Proterhintis affinis, sp. nov. 



Elongatulus, minus latus, nigricans vel obscure rufescens, parte elytrorum dorsali 

 tota vel ex majore parte rufa. Oculi magni. Antennae forma variabiles, saepius 

 crassiusculae, nonnunquam graciles, articulo secundo brevissimo, clava distincte 3-articu- 

 lata. Pronotum minus latum, vel subelongatum, minus dense pallide squamosum, plus 

 minusve evidenter 3-impressum. Elytra irregulariter, plerumque maculatim, squamosa, 

 dorso rufo, saepe subdepresso vel deplanato, basi utrinque scutellum juxta tuberculata, 

 humeris distinctis, subacutis, parum productis. t ?• Long. 2-25 — 3-5 mm. 



This variable species in the smallest examples bears a great resemblance to large 

 ones of P. gracilis, but the two are certainly distinct, the eyes and tarsal lobes 

 being normally more developed in P. affinis, and the antennae thicker. These latter 

 organs, however, exhibit some variability both in stoutness and length. Examples of 

 the species taken in Kona generally have the elytra more evenly convex, less flattened 

 or depressed above. In those from Kau, they are, in some cases, not only distinctly 

 flattened, but show traces of longitudinal and transverse ridges. The humeral angles 

 are distinct, although but little produced, and the tubercles in the region of the scutellum 

 are distinct. The hind femora are not very strongly incrassate. There is no distinct 

 ridee between the vertex and front of the head. 



Hab. Hawaii (3000—4000 ft.) ; about 50 examples were taken from various 

 localities. 



(108) Proterhimis gracilis Sharp. 



Proterhinus gracilis Sharp, Tr. Ent. Soc. London, 1881, p. 529. 

 This species in its typical condition is distinct enough, by its narrow and elongate 

 form (especially in the ?), the slender antennae, and dark elytra, marked with red at the 



