from the Galapagos Islands. 29 
however, shows that the present insects are in affinity remote 
from the Helops group, and indeed belong to the Tentyriade. 
In having a distinct scutellum, the eyes transverse and not 
covered by the lateral ridge of the head, the mentum truncated, 
and the tibi simple, the genus Stomion approaches to Anatolica, 
and yet the general form of the species of Stomion is very differ- 
ent to that of the species of Anatolica; the more slender antennz 
with the terminal joints incrassated, and the absence of emargi- 
nation to the mentum, would alone, however, serve to distinguish 
Stomion trom Anatolica. Perhaps Eschscholtz’s genus Hurymeto- 
pon is more nearly allied to our present genus; the species of 
Eurymetopon are represented by Eschscholtz, however, as haying 
the head broad, the thorax nearly as broad as the elytra, the eye 
small, and the tibize very short, all of which characters will not well 
apply to Stomion. The approach, on the other hand, is evinced, 
as it would appear, in the structure of the antenne and the 
truncated form of the clypeus. 
Stomion galapagoensis. Stom. ater, obscurus, antennis palpisque 
piceis, pedibus piceo-nigris ; corpore ovato, convexo ; capite tho- 
raceque crebre punctulatis ; elytris seriatim punctatis, interstitiis 
conyexis, punctis minutissimis adspersis.—Long. corp. 54 lin. ; 
lat. 22 lin. 
The body is very convex, of a broad ovate form, and dull black 
colour ; the head is flat above or slightly concave in the middle 
and thickly punctured ; the thorax is broader than long, and nar- 
rower before than behind, slightly emarginated in front, where 
the angles are somewhat acute ; evenly and gently rounded at the 
sides, and indistinctly sinuated behind ; the posterior angles are 
right angles; the upper surface is distinctly convex, and very 
thickly and rather finely punctured; an impressed line runs parallel 
with, and close to the posterior and lateral margins, and is also 
continued on the anterior margin, but is interrupted in the mid- 
dle. The scutellum is small and transverse ; the elytra are very 
convex ; at the base they are scarcely broader than the thorax, 
but in the middle they are considerably wider, and at the apex 
they are pointed ; they have series of punctures forming the or- 
dinary striz, but these punctures are by no means strong; the 
interstices are convex and covered with very minute scattered 
punctures. The mentum is distinctly punctured, and the thoracic 
segments are strongly punctured in the middle beneath : the ab- 
dominal segments have fine scattered punctures. 
Two specimens in Mr. Darwin’s collection agree with this de- 
scription ; there are others of a much smaller size, being about 
four lines in length, and in which the notch on each side of the 
fore-part of the head, marking the outer boundary of the clypeus, 
