DOLIEMA. 159 
differs from the same sex of D. cucujiformis in having the thorax relatively broader ; 
the male, however, of which there are several examples contained in the National 
Collection, has the epistoma angularly produced on each side in front, and also the 
antennary orbits (the latter not extending so far forward as the epistoma), thus differing 
from the same sex of D. cucwjiformis. | 
In a long series of examples I find that the thorax and elytra vary somewhat in width ; 
the thorax, however, is more constricted behind than in D. plana. LD. (Pytho) pallida, 
Say, a species found in the Middle and Southern States of North America, is also 
closely allied to this species; but, judging from a female example of that species (from 
Louisiana) in the National Collection, and the vague description of the male, distinct. 
3. Doliema frontalis. (Tab. VII. fig. 24, 3.) 
Form of D. plana. Antenne with the first joint long and much swollen outwardly (the basal fourth thin), 
the second joint short, the third scarcely twice the length of the second, the fourth to the tenth long and 
ovate, the eleventh distinctly longer than the tenth, and somewhat pointed at the apex; head very broad, 
the antennary orbits swollen and extending laterally as far as the eyes, and broadly but narrowly folia- 
ceous anteriorly, enclosing a deep groove along the whole of the front (continued as a deep transverse 
groove across the epistoma, which does not extend beyond the foliaceous margin, the latter rather broadly 
emarginate in the middle), finely and sparingly punctured ;- eyes large, rounded, widely separated ; pro- 
thorax very broad and transverse, constricted from the middle to the base, broadest anteriorly (if any- 
thing, as broad as or rather broader here than the elytra), broadly emarginate at the base and apex, the 
anterior angles rounded, the hind angles subrectangular, the disc longitudinally impressed, the base with 
a deep longitudinal fovea on each side, the surface very finely and sparingly punctured’; elytra with the 
base broadly and somewhat obliquely emarginate on each side (for the reception of the hind angles of the 
prothorax), shallowly punctate-striate, the interstices exceedingly finely and irregularly wrinkled or 
punctured. 
Length 5 millim. (<¢.) 
Hab. Britsn Honpuras, R. Hondo (Blancaneaus).—Amazons, Para and Santarem 
(coll. Brit. Mus.). 
Four male examples, two from British Honduras and one from each of the other 
localities. . 
This species may be at once known by the remarkable structure of the head in the 
male. There is also in the British Museum Collection a single female of a species from 
the Amazons possibly referable to it. 
** Upper surface feebly convea ; the elytra without sublateral carina. 
4. Doliema angustata. (Tab. VII. fig. 26, 3.) 
Elongate, narrow, parallel, very feebly convex, brownish testaceous, shining. Head closely and finely punc- 
tured, the epistoma broadly and deeply emarginate in both sexes; in the male the antennary orbits 
swollen, angularly produced on each side in front (in well-developed examples also angularly produced 
within), the apices slightly converging, attenuate, and deflexed, and the epistoma deeply and semicir- 
cularly excavate (its front face appearing abruptly declivous) ; in the female deeply impressed transversely 
in front, the orbits swollen; antenne comparatively short, only slightly longer in the male, the seventh 
to the tenth joints transverse, the eleventh joint oval and bluntly rounded at the apex; prothorax strongly 
transverse, subtruncate at the base, very feebly emarginate at the apex, rounded at the sides, very 
