COLEOPTERA 245 



latiusculis, nitidis, seriebus 4 vel 5 punctorum ad apicem desinentibus ; pedibus dubilibus. 

 Long. 4 mm. 



The varieties of M. ntsticiis, tliat are short in form, and dark in colour, resemble 

 this a good deal ; but M. inicans can be readily distinguished by its shorter form, shining 

 black surface, yellow legs, and shorter thorax. The legs are always shorter and more 

 slender than they are in M. ntsticiis. The elytral punctuation is of a kind that reappears 

 quite a number of times throughout the allied genera, it consists of series of punctures 

 abbreviated at both base and apex (the sutural one being however entire) and becoming 

 shorter gradually so that the fifth or sixth can scarcely be detected : these punctures are 

 usually placed in indistinct striae. Fifty or sixty specimens. 



Mr Blackburn's description is not very characteristic. The specimen in his collection 

 at the British Museum is however this species. He originally captured two specimens, 

 but I have not been able to ascertain the fate of the second individual. In this very 

 difficult genus it is possible that the two specimens alluded to may have been different 

 species, it being in several cases very difficult to decide from single specimens. 



Hab. Maui. Haleakala, 9000 ft. (Blackburn). Haleakala, 9000 — 10000 ft. 

 (Perkins). 



(5) Mecyclothorax iiiicrops sp. nov. 



Rufo-piceus, antennis, palpis pedibusque testaceis ; prothorace vix transverso, 

 lateribus posterius leniter angustatis, angulis posterioribus brevissime denticulato-rectis ; 

 elytris quinque-striatis, striis punctatis. Long. 4:|: mm. 



This obscure form appears by the shape of the thorax to connect the AI. nisticns 

 group of species with M. laetiis. It is I think nearer allied to the first-mentioned forms, 

 from which it is distinguished by the thorax being considerably narrower in proportion to 

 its length, as well as by a different shape of the elytra and other parts. The head is 

 narrow. The thorax is considerably narrower than the elytra, with the sides gently 

 rounded and but little narrowed behind, where they are however slightly sinuate, there 

 is an extremely minute projection of the setigerous hind angle and this prevents the 

 angle from being obtuse ; the surface is shining, the lateral margin very fine, the median 

 channel rather deep, not extending to the base, the transverse anterior impression less 

 deep : the length of the thorax is only very slightly less than the width. The elytra are 

 moderately rounded at the shoulders, and each bears five striae, these striae are not very 

 definite at the base and are fine at the tip but they are very distinctly punctate, and there 

 is a subobsolete si.xth stria. We have only one specimen, in rather bad preservation. 



Hak. Alolokai. Kalawao, ist August, 1893 (Perkins). 



(6) Mccyclothorax ohscnricornis, sp. nov. 



Nigricans, elytris late, sed minus definite testaceo-limbatis, pedibus antennisque 

 fusco-testaceis, his ad basin anguste rufis ; prothorace transverso, basi angusta, angulis 

 posterioribus obtusis ; elytris profunde striatis, striis fere impunctatis. Long. 3^ mm. 



