226 HETEROMERA. 
two very short indistinct teeth at the widest part. The hind tibie are simple in both 
sexes. A. clavicornis is perhaps nearest allied to A. vinculatus, La Ferté, from which 
it may be easily recognized by the clavate antenne, the more prominent eyes, the more 
gibbous anterior portion of the thorax, and the non-tuberculate elytra. A. impressi- 
pennis, La Ferté, from Texas, the type of which is not contained in this author's collec- 
tion, is apparently an allied species, but differs in being more elongate &c.; this insect 
was unknown to Leconte. 
4. Anthicus dromedarius. (Tab. X. figg. 4; 4a, profile.) 
Anthicus dromedarius, La Ferté, Monogr. Anthic. p. 114°. 
Hab. Mexico, Huatusco, Cordova (Sallé), Jalapa (Hége), Teapa in Tabasco (Sallé, H. H. 
Smith); Guatemata, El Tumbador, Rio Naranjo, Coatepeque, Capetillo, Zapote, San 
Gerénimo, San Joaquin, Chacoj, Senahu (Champion); Nicaracua (Sallé), Chontales 
(Janson).— VENEZUELA, Cumana!. 
A. dromedarius, La Ferté, described from a single abraded example, is one of the 
commonest species of the genus in Central America. Our specimens vary in colour 
from black to castaneous, the head and prothorax being often more or less reddish ; the 
elytra have a transverse fascia of variable size a little below the base (in some examples 
occupying the whole of the base) and an oblique one (rarely reaching the suture) below 
the middle, and the base on either side of the scutellum, testaceous or flavous; the legs 
vary in colour from pitchy-brown to flavo-testaceous, but the tibiee are invariably dark (a 
character particularly mentioned by La Ferté, and especially noticeable in light-coloured 
examples) ; the antenne have usually the outer joints piceous or brownish and the basal 
joints testaceous, in one or two examples, however, they are entirely testaceous. The 
head and thorax are densely and minutely punctured (more sparsely so in some 
examples), the former usually smoother and more shining behind; the head is rather 
long, rounded at the sides behind, the eyes large; the thorax is transversely convex 
anteriorly and strongly constricted behind the middle; the elytra are very shining 
and almost smooth, and have a very deep transverse post-basal depression, the basilar 
portion being tubercularly raised on either side of the suture and the humeri swollen 
and prominent, the depression (which is usually more than covered by the transverse 
fascia) clothed with fine ashy pubescence and the oblique post-median fascia also finely 
pubescent. 
The darkest specimens have the femora, as well as the tibiae, piceous. In the male 
the fifth ventral segment is broadly triangularly depressed in the middle behind, and 
the apex is truncate. 
The examples from Chacoj-and Senahu agree exactly with La Ferté’s type from 
Cumana, with which I have compared them ; the type is a male. 
Labelled A. gibbicollis, Deyr., in the Sallé and other collections. 
