522 Mr. D. Mary on some new 
or suberenate ; bearing a scanty, very fine, pubescence. 
Legs very obscure red. 
This species is highly remarkable from its large size 
and the structure of the front angles of the thorax. 
Two specimens of this insect were dug out of a Koa 
trunk by Mr. Blackburn, on Haleakala, Maui, at an eleva- 
tion of 4000 or 5000 feet, April, May, 1880. 
The following are the characters that have induced me 
to propose a new generic name for the preceding three 
species ; they are drawn more specially from an exami- 
nation of H. granulatus :— 
Antenne 11-joited, elongate, but to a variable degree, 
feebly serrate internally, the three terminal joints longer 
than broad, scarcely angulate internally. Terminal joint 
of each of the four palpi dilated, securiform, but with 
the outer extremity emarginate. Head of moderate 
size; eyes convex. Prothorax with even surface, its 
edges trenchant, beneath but little hollowed for the in- 
flexed head, front angles nearly rectangular. Front 
coxe contiguous. Mesosternum ordinary. Legs elon- 
gate, but tarsi stout, and only moderately long; tibie 
elongate, subcylindric, simple, not in the least angulate.- 
Ventral segments five, free, the basal one slightly lobed 
or produced backwards in the middle. 
This genus comes near to Metholcus, but the antenne 
are elongate and less serrate, the head smaller, the pro- 
thorax less modified for receiving and covering the head ; 
and the tibiz are quite simple, not angulate externally. 
MrrosTERNUS,* n. g. 
Mirosternus punctatus, n. s. 
Dense, subtiliter squaliterque punctatus, subtilius 
pubescens, opacus, nigricans, antennis pedibusque piceis, 
illis clava fere nigra, his tarsis dilutioribus, capite subtus 
rufescente. Long. 24 mm. 
Antenne with the basal joints piceous, the three 
terminal ones nearly black, these very elongate, the first 
of them broad, and much dilated inwardly, but its most 
prominent angle obtuse; the second of them elongate, 
and angulate internally, but still slender; the apical 
* On p. 517, lines 3, 4, 6, 11 and 21, this name is printed 
Calosternus in error. 
