54 Mr. D. Sharp on Coleoptera of Hcnoaiian Islands. 



rufescente, antennaruni basi pedibusqiic testaceis ; femori- 

 bus crassis, tibiis anterioribus curvatis. Long. 2| mm. 



Althougli the surface is nearly destitute of sculpture 

 and pubescence, it is but little shining ; the antennae are 

 rather short, the basal joint short and much concealed, 

 the five following ones short and slender, 7 — 10 not very 

 stout, but distinctly transverse, differing little from one 

 another. Head rather narrower than thorax, smooth, 

 dull, without scidpture. Thorax rather broader than 

 long, narrower than the elytra, the sides rounded and 

 narrowed behind, the hind angles very indistinct, the 

 surface very sparingly and indistinctly punctured, without 

 impressions. Elytra much longer than the thorax, very 

 sparingly punctate, with a very distinct sutural stria. 

 Hind body elongate, dull. Legs yellow, the femora 

 thick, but flattened. 



Found rarely, under bark, on the higher mountains of 

 Oahu. 



The structural characters of this new genus follow : — 



Sculpture and form of Lispinus, but more depressed. 

 Head small, not margined in front, and without antennal 

 tubercles, slightly constricted behind the eyes so as to 

 form a thick neck. Thorax with the base slightly emar- 

 ginate. Hind body without lateral margins, shaped just 

 as in Lispmus, but the terminal segment ends in two 

 very obscure styles. Parts of the mouth, including the 

 mandibles, very small ; the sutures of the undersurface 

 of the head are quite effaced. Prosternum in front of 

 coxEe large ; anterior coxse not prominent, contiguous, not 

 separated by any process of the prosternum. Middle 

 coxffi globose, very nearly contiguous. Femora very 

 thick ; tibins slender, without spines or hairs. Tarsi very 

 small, three-jointed, the two basal joints very short. 



Although this insect has at first sight quite the appear- 

 ance of the flatter and smaller species of Lispinus, it 

 is not really allied to them. Its affinities are undoubtedly 

 with Glyptoma, Er. ( Thoraxophorus , Motsch.), although 

 it differs totally therefrom by the absence of sculpture and 

 by the depressed form. Its nearest known ally is, no 

 doubt, the Austro-Malasian Tlwracophorus crenicolUs, 

 Fauv., but it is not at all probable that the two can be 

 placed in one genus. Fauvel has quite correctly stated 

 that a new genus will require to be founded for his 

 species. 



