STERNECHUS. 115 
up and irregular till in the var. reticulatus they are reduced to a series of sinuous 
prominences; the depressed portions of the surface are thickly pubescent. The 
femora and tibie are each armed with a short tooth, the tibiz also setose and faintly 
serrulate along their inner edge. 
2. Sternechus continuus, sp. n. (Tab. VII. figg. 20, 20a.) 
Broad-ovate, robust, black, shining; the prothorax, except upon two transverse spaces on the disc and two 
spots on each side, and the alternate flattened elytral interstices, thickly clothed with fine cinereous or 
flavo-cinereous pubescence; the under surface and legs very sparsely pubescent. Head finely punctate, 
sulcate and foveate between the eyes, which are rather narrowly separated ; rostrum very stout, short, 
closely, irregularly punctate, in some specimens carinate towards the base. Prothorax transverse, rounded 
at the sides and narrowing almost from the base, slightly constricted in front; the pubescent portion of 
the surface depressed and closely, very finely punctate, the other parts a little smoother. Elytra subcor- 
date, gibbous, conjointly rounded at the apex, the humeri swollen and obliquely subtruncate, the infra- 
humeral prominence stout and subconical; finely seriate-punctate, the interstices 1 (sutural), 3, 5, 7, 
and 9 almost smooth and uninterruptedly costate, the others flat, dull, and minutely, rugulosely punctate. 
Beneath very finely punctate. Femora and tibie each armed with a short tooth, the tibia also setose 
along their inner margin. 
Length 104-13, breadth 6-8 millim. 
Hab. Muxico, Catemaco in Vera Cruz, Tehuantepec (Sallé); Guatmmaua, near the 
city (Champion); Nicaragua, Chontales (Janson); Costa Rica, Escazu 1200 metres 
(Biolley) ; Panama, Bugaba (Champion), Chiriqui (Trdtsch). 
Hight specimens. Very hke the Brazilian S. guerint, Boh., from which it differs in 
having each of the alternate elytral interstices costate (in 8. guerint the seventh is raised 
at the base only, and the ninth scarcely at all). SS. continwus is perhaps nothing more 
than an extreme form of S. evtortus, which it replaces in the southern part of its 
distribution. 
8. Sternechus spinipes, sp. n. (Tab. VII. figg. 21, 21 a, 6.) 
Subelliptic, black, shining, clothed with very minute, scattered, hair-like scales, the legs shortly pubescent. 
Head closely punctate, foveate between the eyes, which are rather narrowly separated ; rostrum stout, 
fully as long as the prothorax, closely punctate, the antenn inserted considerably before the middle. 
Prothorax broader than long, a little rounded at the sides, narrowed and constricted in front, the lateral 
margins (as seen from above) crenate; the surface rather uneven and closely punctate throughout. 
Elytra subtriangular, somewhat gibbous, conjointly rounded at the apex, the humeri rounded and 
swollen, the infra-humeral prominence long and conical; coarsely and closely seriate-punctate, the 
interstices narrow, transversely wrinkled, and sparsely, minutely punctate. Beneath sparsely punctate. 
Femora and tibia each armed with a strong sharp tooth, the tibize denticulate on the inner edge between 
this and the apex, and also with a sharp tooth at the inner apical angle. 
Length 8, breadth 47-43 millim. 
Hab. Guatemata, Panima (Champion), Coban (Conradt). 
Two specimens, both from Vera Paz. In this species, as in S. nitédus, the rostrum 
is less thickened and considerably longer than in S. extortus, S. foveolatus, &c. The 
seriate impressions on the elytra are not so large as in S. foveolatus. The tooth on 
QQ 2 
