EPICAUTA. 427 
beneath densely, finely punctate; legs short and stout, the hind tibial spurs slender, subequal; anterior 
femora slightly dilated and with their inner face concave, and the anterior tibie with two spurs, in the 
male. 
Length 83-10 millim. (¢ 9.) 
Hab, Mexico, San Isidro in Coahuila (Zége). 
Five examples of this species were obtained by Herr Hoge during his second Mexican 
expedition. In the form of the labrum F. emarginata is intermediate between 
Gnathospasta and the normal Epicaute ; the mandibles, however, are shorter and less 
developed than in Gnathospasta, and they are toothed on the inner side towards the 
base. The present species resembles the cinereous variety of E. ferruginea, and has 
the antenne formed as in that insect, but the thorax is more rounded at the sides, with 
less prominent hind angles; the upper and under surfaces are densely, finely punctate, 
and thickly clothed with coarse, whitish pubescence. . fisstladris, Lec., from Lake 
Superior, &c., appears to have a similarly emarginate labrum. 
48, Epicauta singularis. (lab. XIX. fig. 25, 2.) 
g. Modcrately elongate, subparallel, black, thickly clothed with cinereous or fulvo-cinereous pubescence, the 
under surface with longer and coarser hairs. Head closely and finely punctate, flattened between the 
eyes, and with a fine median groove, the labrum scarcely emarginate, the eyes strongly transverse ; 
maxillary palpi piceous or black, the apical joint oblong-ovate, rounded at the tip; antenne black, elon- 
gate, filiform, rather stout, the joints flattened-cylindrical—1 comparatively short, not so long as 4, 2 very 
short, 3 elongate, more than three times as long as 2, 4-10 subequal, much shorter than 3, 11 a little 
longer than 10; prothorax transversely-subquadrate, the sides parallel in front and slightly sinuous 
behind, the anterior angles prominent, the surface uneven, densely and finely punctate, the disc trans- 
versely raised in the centre anteriorly, depressed between this and the apex, and with an interrupted 
median groove, which is more distinct in front than at the base; elytra somewhat flattened on the disc, 
minutely punctured ; beneath with an almost bare spot on the middle of each of the ventral segments, 
these latter densely, finely punctate; legs black, densely cinereo-pubescent, the spurs of the hind tibie 
slender; the anterior tibiee with two spurs. 
2. The antenne less elongate; the elytra transversely depressed below the base and also at the middle, 
the suture longitudinally, tubercularly raised at one-third from the apex. 
Length 7-10 millim. (¢ 9-) 
Hab. Mexico, Monterey in Nuevo Leon, Saltillo in Coahuila (Hége). 
Eleven examples, six of which are females, all but one from Monterey. This peculiar 
species differs from all others here enumerated in the transversely-quadrangular thorax, 
the anterior angles of which are prominent, and the disc transversely raised in the 
middle anteriorly ; the female possesses very remarkable sexual characters. 
49, Epicauta compressicollis. (Tab. XIX. figg. 26; 26a, antenna.) 
Elongate, narrow, parallel, brownish-luteous, the head and prothorax obscure ferruginous, the eyes and labrum 
black; the upper surface very finely and rather sparsely cinereo-pubescent. Head large and convex, 
closely, minutely punctate, and with a fine median line; the eyes very large and convex, feebly emargi- 
nate; the labrum feebly emarginate ; maxillary palpi black, the apical joint elongate, ferruginous at the 
tip; antenne black, setaceous, moderately long, joint 1 elongate, 2 more than half the length of 3, 3-10 
subequal in length, 6-10 gradually decreasing in thickness, 11 a little longer than 10 ; prothorax narrow, 
3IT 2 
