ACYLOMUS.—EULITRUS. 257 
1. Acylomus aciculatus, sp.n. (Tab. VII. fig. 22.) 
Subrotundatus, sat convexus, nitidus, piceus; elytris stria suturali punctisque transversis obsoletis ; 
antennis pedibusque rufis. 
Long. 23-3 millim. 
Hab. Mexico, Jalapa (Hoge), Teapa (H. H. Smith); British Honpuras, R. Hondo 
(Blancaneauz) ; Nicaragua, Chontales (Janson). | 
Antenne with rather slender and compact club; ninth joint longer than broad ; tenth 
broader than long; terminal joint about as long as the two preceding together. Thorax 
with short but well-marked scutellar lobe, and the base at this part margined. Scu- 
tellum rather small. Elytra with a very flat basal margin, a well-marked sutural stria, 
which, however, does not quite extend to the base, and peculiar obsolete punctures, 
which look in a certain light as if they were feeble transverse impressions. 
We have received about a dozen examples from British Honduras, two from 
Nicaragua, and two from Mexico; those from the latter locality are in a bad state of 
preservation and are a variety of very small size. 
2. Acylomus —— ? 
Hab. Panama, Volcan de Chiriqui (Champion). 
This and the following two species are very much smaller than A. aciculatus; as 
each is represented by only a single mutilated example, and possesses apparently no 
very salient characters, I have preferred not to give them names. 
3. Acylomus ——? 
Hab. GUATEMALA, near the city (Champion). 
4. Acylomus 2 
Hab. GuatemaLa, Cahabon in Vera Paz (Champion). 
EULITRUS, gen. nov. 
Tarsi posteriores articulo primo brevi, cum secundo consolidato, hoc elongato, tertio parvo. Prosternum 
muticum, apice reflexo. Metasternum inter coxas intermedias latum, valde productum, anterius omnino 
rotundatum. 
Although agreeing with Acylomus in the structure of the hind feet, this genus departs 
very widely therefrom in the structure of the breast, and is, in fact, the most highly 
developed of the forms with very prominent metasternum. The front of the meta- 
sternum actually projects forwards and reposes on the prosternal process, which is 
impressed for its reception. As regards the structure of the hind foot, although the 
short basal joint appears to be quite consolidated with the elongate second joint, yet 
on the under surface there remain some minute adpressed ciliz that make the line of 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, February 1889. 2 L* 
