BLACKBURN AND SHARP—On some New Species and Genera of Coleoptera. 161 
Antenne with the three terminal joints forming a lax elongate club, the first of 
them a little longer than broad, the two following nearly ‘init to it, and not at all 
triangular in shape; thorax a little produced in the middle in front; the produced 
portion a little emarginate, each side of the emargination terminating as a small 
hook, the tubercle forming the hook being the most anterior of a lateral series of 
five similar murications; there are besides these lateral series numerous other 
less sharply elevated murications; the posterior portion of the thorax bears a 
peculiar scale-like sculpture; the punctuation of the elytra is not very coarse, and 
is irregular, though of a somewhat serial character. 
This species inhabits Nicaragua, as well as the Sandwich Islands; it is closely 
allied to Amphicerus fortis, Leconte, but it is comparatively narrower, and the 
punctures on the elytra are finer, and the prothoracic prolongations are very much 
shorter than in the North American insect. Although the insect belongs to the 
genus Amphicerus Leconte, yet it also belongs to Bostrichus, as now understood ; 
Leconte, when dividing Bostrichus, having fallen into the error of giving the 
name of Amphicerus to the insects to which our well-known European Bostrichus 
capucinus belongs, whereas he should have retained the name Bostrichus for that 
division, and have conferred a new name on the cornuted forms to which he 
assigned the old Geoffroyan name of Bostrichus. In consequence of this error of 
Leconte’s, the Munich Catalogue presents us with a complete confusion about the 
two genera. 
D. 8. 
Fam. CIOIDA. 
Cis. 
Cis bimaculatus, n. sp.—Niger, antennarum basi pedibus elytrisque testaceis, 
his in medio nigro-bimaculatis, glaber, nitidus, elytris basi parce, fortiter punc- 
tato, prothorace crebrius et subtilius punctato. Long. 38 m.m. 
Antenne small, with slender club, the two basal joints yellow, the rest dark ; 
head small, only half as broad as the thorax; thorax curved at the sides, and 
rather narrowed in front, rather broader than long, black, but with a small paler 
mark in the middle of the base and at the front margin; very distinctly punc- 
tured; elytra pale, with a dark spot on the middle of each; the basal portion 
coarsely but sparingly punctate, the apical half impunctate. 
Found very rarely, according to Mr. Blackburn, on the higher mountains of Maui and Hawaii. 
No. 271. 
D.S. 
Z2 
