STEREOBATES. 17 
1. Stereobates pedator, sp.n. (Tab. I. fig. 14.) 
Rufus, opacus ; rostro anterius crebre punctato, nitido; vertice fisso; pedibus elongatis et robustis. 
Long. 8 millim. : 
Hab. Mexico, Toxpam (Sal/é). 
Antenne with only fine, scanty, and inconspicuous sete; each joint longer than 
broad, and each becoming broader from the base to near the extremity, ninth twice as 
long as the eighth, terminal joint distinctly longer than the ninth or tenth. Anterior 
part of rostrum rather closely and distinctly punctate, shining; posterior part quite dull, 
with a rather shallow groove along the middle, widening out greatly at the vertex, each 
side of the vertex produced so as to form an angular prominence. Thorax a little 
rounded at the sides, constricted near the front, but scarcely at all so at the base; at 
the sides with an obsolete sculpture formed by coarse indistinct punctures, which render 
the surface uneven ; along the middle with a broad groove bounded on each side by a 
longitudinal elevation, these two carinz shining, the surface between them dull but not 
sculptured. Elytra each with four equidistant carine, and large indistinct punctures 
between them ; the carine are not joined behind, though they are there more strongly 
elevated, the first of the carine as well as the suture more conspicuous behind than the 
others are; each carina bears a few erect sete, which are only conspicuous behind. 
Under surface shining; head and base of rostrum rather coarsely punctate-strigose ; 
apical explanate portion of elytra large. 
Two specimens. This is, on comparison, readily distinguished from the other two 
species of the genus by the legs being much longer than in S. chiriquensis, much 
thicker than in S. gracilis. 
2. Stereobates gracilis, sp. n. 
Rufus, opacus; rostro anterius nitido, indistincte punctato; vertice profunde emarginato; pedibus posterioribus 
gracilibus. 
Long. 54 millim. 
Hab. Mexico, 'Toxpam (Sal/é). 
Very slender. The produced angles of the head short and somewhat depressed. 
Thorax not convex, slender, the surface uneven, but the punctuation is quite indistinct. 
Elytra with the carine less distinct than in S. pedator, and the sete very small, even 
behind. Under surface shining, sculpture of the head obsolete. Abdominal impression 
only slight. Legs slender, the tibie but little compressed and dilated. Apical 
explanate portion of elytra very slight. 
One specimen. Although very closely allied to §. pedator, I feel convinced this will 
prove to be a distinct species, and not the other sex thereof. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 6, May 1895. DD 
