from the Galapagos Islands. 27 
again into an obtuse angle. Clypeus broader than long, con- 
tracted and slightly recurved at the apex, which is indistinctly 
emarginated. Thorax convex, withthe sides rather boldly rounded; 
the posterior margin also rounded, but forming a segment of a 
larger circle ; the fore-part emarginated ; anterior angles slightly 
acute, posterior obtusely rounded ; the surface above with distinct 
punctures, but these remote from each other—most numerous on 
the fore-part ; there is moreover a fovea on each side about mid- 
way between the anterior and posterior angles, and a little re- 
moved from the lateral margins. Scutellum triangular, slightly 
rounded at the tip. Elytra convex, much broader than the thorax, 
and broadest at the posterior third ; the humeral angles obtusely 
rounded, the hinder part very obtusely rounded ; they have a few 
exceedingly minute scattered punctures, some indistinct little 
ruge, and one or two longitudinal larger impressions. The 
sutural stria is composed of a subinterrupted series of distinct 
punctures. The body beneath is well-clothed with yellow hairs, 
and so are the legs: the terminal segment of the abdomen, like 
the elytra, has exceedingly minute scattered punctures; it is 
convex, rounded at the extremity, and its transverse diameter is 
about three times greater than the antero-posterior ; the penul- 
timate segment above is tolerably well-clothed with yellow hairs 
(the last has but few hairs), presents a distinct longitudinal fur- 
row in the middle, and this furrow is bounded on either side by 
a slightly elevated ridge. The legs are short and stout, and the 
anterior tibize have three tooth-like processes on the outer side. 
The insect is very glossy and of a bright chestnut-brown colour. 
Section HETEROMERA. 
Family Tentyriip 2. 
Genus Stomion* (noy. gen.). 
Clypeus truncated in front, its lateral boundaries indicated by 
two shghtly impressed longitudinal grooves. 
Labrum prominent, transverse, and slightly emarginated im front. 
Mandibles projecting beyond the clypeus when closed, covered at 
the apex by the labrum, but with the sides exposed when the 
head is viewed from above ; they are bidentate at the apex. 
Mentum broad and transverse and very nearly semicircular, the 
rounded part being in front. 
Mazillary palpi moderate ; the terminal joint triangular, at least 
as long as broad : labial palpi short. 
* Sropioy, a little mouth; having allusion to a peculiar cenformation of 
the mouth of this and some allied genera, viz. that of having the mouth closed 
beneath by a large mentum, by the sides of which there does not exist the 
usual emarginations for the maxille, which are therefore hidden. 
