Coleoptera from the Hawatian Islands. 525 
and in front of this a rather obscure elongate carina. 
The two individuals before me are no doubt male and 
female, as in one of them the antennal club is rather 
more developed than in the other; this is no doubt the 
male, and it has moreover the metasternum a little more 
deeply hollowed than the other individual. 
Found at an elevation of about 1000 feet on the 
Waianae mountains, Oahu, by beating dead branches of 
trees. 
Mirosternus debilis, n. s. 
Rufo-obscurus, antennarum basi pedibusque rufis, 
illarum clava fusca; capite thoraceque pubescentibus, 
obsoletissime punctatis; elytris subtilius punctatis et 
pubescentibus, pone basin transversim  subglabris ; 
metasterno in medio anterius minus alte carinatum. 
Long. 2 mm. 
The club of the antenne is here of only moderate 
size; the intermediate joints appear to be only five in 
number, thus making in all only ten joints. The head 
and thorax are finely but distinctly pubescent, the latter 
moderately closely, very finely, but quite visibly punctate. 
_Elytra very delicately pubescent, with a very fine but 
rather dense puncturation on the apical portion ; in front 
of this quite sparingly punctate, but with the punctura- 
tion at the base again more distinct. Metasternum 
broadly and deeply impressed along the middle, and 
in front with a slightly elevated but quite distinct 
carina. 
The habitat is the same as that of the preceding 
species and C. punctatus. (No. 334). 
Mirosternus bicolor, n. 8. 
Nigro-testaceus, antennarum basi rufo, pedibus ely- 
trisque testaceis, his circa scutellum infuscatis apice late 
nigro, glabris, nitidis; capite thoraceque tenuiter pube- 
scentibus; metasternum in medio anterius alte cari- 
natum. Long. 2 mm. 
Antenne pale red, with the club infuscate; the first 
joint of the latter large, but not angulate internally, its 
inner margin, though shorter than the outer, being trun- 
cate. Head and thorax of an obscure red, or pitchy 
colour, very finely pubescent, but with no visible 
