160 BuacksurNn AnD SHarP—On some New Species and Genera of Coleoptera. 
CATORAMA. 
Catorama pusilla, n. sp.—Brevis, rufo-ferruginea, antennis tibiisque pallidiori- 
bus; minus dense punctata et pubescens. Long. 2 m.m. 
This obscure insect is readily distinguished from C. mexicana by its smaller 
size and brighter colour, and it also appears to have. a less dense pubescence ; the 
antennz, with the exception of the basal joint, are quite pale yellow; the thorax 
is short and very transverse, without visible punctuation; the elytra are without 
strie, and bear an almost invisible punctuation, and behind the base there are 
some fine but larger punctures that scarcely extend beyond the middle. 
Mr. Blackburn found two individuals in the island of Maui. 
MIrostEeRNuSs. 
Mirosternus acutus, n. sp.—Piceus, antennis pedibusque rufescentibus ; elytris 
ad basin apicemque crebre subtiliter punctatis; parte intermedia sparsim minus 
subtiliter punctata; metasterno fortiter carinato. Long. 3 m.m. 
This species is allied to M. muticus, Sh., but has the metasternum differently 
sculptured, the hinder portion being profoundly channeled, and the front portion 
bearing a very strongly and sharply elevated carina. In the male (the only sex 
known to me) the densely punctured apical portion of the elytra appears to 
extend somewhat further forward than in M. muticus, and the apical three joints 
of the antenne (especially the last) are wider than in the other known species of 
the genus. 
A single specimen was obtained by beating dead branches of trees, at an elevation of about 2000 
feet, on Kauai. 
th 133, 
Fam. BOSTRICHID. 
BostTRicHus. 
Bostrichus migrator, n. sp.—Cylindricus, niger, sat nitidus, antennis rufis, 
harum clave articulis suboblongis haud intus serratis; prothorace anterius muri- 
cato, posterius dense sculpturato, margine anteriore in medio utrinque breviter 
producto; elytris dense sat fortiter punctatis. Long. 94 m.m. 
Var. major, elytris versus apicem utrinque biangulariter prominulis; an sexus 
alter? Long. 14 mm. 
