62 HETEROMERA. 
98. Asida thoracica. 
Oblong oval, black, shining. Head closely and very coarsely punctu 
a little broader than long, the sides rounded, narrowed and sinuate just before the rectangular hind 
angles, narrowed in front with the anterior angles prominent and triangular, base slightly rounded, feebly 
emarginate, and with a broad impression in the middle, coarsely and rather closely punctured on the disc, 
rugulose along the sides, lateral margins crenulate and reflexed ; elytra long, subtruncate at the base, 
rounded at the sides, a little narrowed towards the base, base a little narrower than the thorax, humeral 
angles almost rounded, a marginal ridge distinct only at the shoulder, the surface somewhat coarsely but 
not very closely punctured ; anterior tibice blunt toothed at outer apical angle; femora and tibiee very 
stout, coarsely rugulose. Beneath dull, finely and closely strigose ; prosternum with a prominent blunt 
tubercle behind. . 
Length 25 millim. 
Hab. Mexico (Sallé). 
One example. Closely allied to A. pubescens, but more coarsely and closely punctured, 
the central basal impression of the prothorax deeper, the upper surface glabrous, &c. 
red, broadly impressed in front ; prothorax 
29. Asida rufipes. (Tab. III. fig. 14.) 
Obovate, broad, black, shining. Head with a feeble impression on each side in front, sparingly punctured ; 
prothorax not very convex, very finely and sparingly punctured on the disc, and with rather coarse 
scattered punctures along the sides, transverse, the sides slightly rounded, narrowed and sinuate behind 
before the subacute, but not prominent, hind angles, narrowed in front with the anterior angles acute and 
prominent, base subtruncate, lateral margins narrowly expanded and reflexed; elytra broad, convex, 
strongly rounded at the sides, wider at the base than the thorax, much widened behind, the basal margin 
a little raised, and sinuate on each side to the humeral angles which are slightly prominent, with scarcely 
any indication of a marginal ridge, and the surface coarsely and somewhat closely punctured ; scutellum 
large, prominent, transversely triangular ; legs red, anterior tibiee with a sharp tooth at outer apical angle. 
Beneath shining ; ventral segments with scattered, very fine, longitudinal wrinkles, and a few scattered 
punctures at the apex. 
Length 19 millim. 
Hab. Mexico, San Luis Potosi (Dr. Palmer). 
One example. 
30. Asida costata. 
Stenomorpha costata, Sol. Ann. Ent. Soc. Fr. 1836, p. 490°. 
Hab. Mexico ! (Truqut). 
I have seen but one specimen of this species contained in the Sallé collection. 
31. Asida umbrosa. (Tab. III. fig. 17.) 
Oblong oval, dull black, scarcely shining. Head transversely impressed in front, smooth; prothorax trans- 
verse, the disc smooth and convex, the lateral margins broadly dilated, a little reflexed, and coarsely 
punctured and wrinkled transversely within, the sides slightly rounded, narrowed in front, and the 
anterior angles a little prominent and rounded, but little narrowed behind, the base bisinuate and a little 
produced and rounded in the centre; elytra smooth, narrower than the thorax at the base, rounded at the 
sides, widest behind the middle, feebly margined (almost rounded) from the shoulders to beyond the 
