HETEROMERA. 497 
flattened, the lateral portion slightly depressed, the surface almost smooth, opaque towards the sides and 
apex, the epipleure towards the apex separated from the flanks by a sharp carina ; beneath shining, the 
flanks of the prothorax, and the pro- and mesosternum exceedingly coarsely punctate, the metasternum and 
venter very sparsely, more finely punctate ; prosternum rounded and declivous behind, slightly produced ; 
legs very coarsely punctured, sparsely pubescent ; anterior tibie with a short blunt tooth at the tip. 
Length 193, breadth (elytra) 64 millim. (<.) 
Hab. Mexico, Zapotlan (Flohr). 
One example. In this species the elytra are very elongate, subparallel, and narrower 
than the thorax, at least in the male sex; the hind angles of the thorax are very 
prominent and produced behind, external to the rounded humeri of the elytra. 
A. flohri has a different facies from any other Mexican species of the genus. 
21 (a). Asida moricoides. (Tab. XXII. fig. 14.) 
Elongate, broad, dull black, glabrous. Head sparsely, rather coarsely punctate; prothorax broader than long, 
the sides rounded at the middle, obliquely converging in front, and sinuous and converging behind, the 
hind angles acute and prominent, the anterior angles strongly, triangularly produced in front, acute, the 
apex deeply emarginate, the base slightly sinuate on either side, the disc very feebly convex and 
sparsely very finely punctate (almost smooth in some specimens), the lateral portion coarsely, more or less 
confluently punctured, the margins moderately raised and crenulate, broadly expanded, thin ; elytra 
moderately long, flattened on the disc, the width of the prothorax at the base in the male, broader in the 
female, narrowing a little in front, widest beyond the middle, with a thickened, crenulated, and reflexed 
marginal carina extending from the humeri nearly to the apex, and two shorter caring on the dise—the 
inner one usually fainter than the other and sometimes obsolete, the rest of the surface with fine scattered 
punctures and shallow transverse wrinkles—sometimes almost smooth, sometimes more coarsely wrinkled, 
the humeri reflexed and moderately prominent, the epipleurs in their apical third separated from the 
flanks by a sharp carina; beneath sparsely, finely punctate, the entire ventral surface finely scabrous 
and without distinct punctures ; prosternum declivous and grooved behind ; anterior tibise with a sharp 
tooth at the tip, denticulate on their outer edge. 
Length 18-25, breadth 10-14 millim. (¢ 9.) 
Hab. Mexico, Villa Lerdo in Durango (Hége). 
Sent in abundance by Herr Hége. It is perhaps nearest allied to 4. obsoleta and 
A. muricatula, Lec. 
21 (s). Asida obliterata. 
Closely allied to A. moricoides, and differing as follows :—The elytra more convex, the marginal carina shorter 
and less distinct, the other carinz obsolete, the punctuation a little coarser. 
Length 20-26, breadth 93-124 millim. (dc -) 
Hab. Mexico, Paso del Norte (Hége). 
Many specimens. This is probably a varietal form of A. moricoides; nevertheless 
it is advisable to name it. 
1 (c). Asida segregata. 
Closely allied to A. moricoides, and differing as follows :—The elytra with the marginal carina extending to 
about one-third from the apex (in one specimen abbreviated and only extending to a little below the humeri), 
he other carine obsolete, sparsely, coarsely punctate, the punctures towards the suture and the anterior 
