various Central American Coleoptera. oy 
small and transverse, the club rather large, joints 9 and 10 strongly 
transverse. Thorax about as long as broad, regularly quadrate, 
the hind angles rectangular, the narrow lateral margins not visible 
from above; closely minutely punctate. Elytra rather more than 
twice the length of the thorax, parallel, the humeri angular; finely 
punctate-striate, the interstices almost smooth. 
Length 17-2} mm. (¢ 9.) 
Hab. GUATEMALA, Panzos and Teleman in the Polochic 
valley (Champion); Amazons, Kga. 
This genus is an addition to the Central American fauna. 
HOLOSTERNUS. 
Holosternus, Sharp, Biol. Centr.-Am., Coleopt. i, 1, p. 599 
(1900). 
This is one of four Central American genera—the others 
being Anepsicus, Cissocryptus, and Trogocryptus—referred 
somewhat doubtfully by Dr. Sharp to the Cryptophagidae. 
He described the tarsi in all of them as 5-jointed; but this 
is a mistake, as the types have in each case the tarsi clearly 
5-, 5-, 4-jointed.t_ Additional specimens of all these insects, 
moreover, are now available for examination, and the tarsi 
prove to be heteromerous in both sexes in each of the genera 
mentioned. The imperfectly closed anterior coxal cavities, 
combined with the tarsal formula, is suggestive of Pythidae ; 
but in this last-mentioned family the thorax is not margined 
laterally, etc. The four genera, therefore, must remain for 
the present where Dr. Sharp placed them, the heteromerous 
tarsi notwithstanding. Various Cucujidae are known to 
have this form of tarsus in the male, so that it is not sur- 
prising to find a similar structure in both sexes amongst 
some of the Clavicornia. 
Holosternus distans. 
Holosternus distans, Sharp, loc. cit. p. 600, pl. 18, fig. 18. 
Described from two specimens from Capetillo, Guatemala. 
The following are additional localities :— 
GuaTEMALA, El Tumbador, Las Mercedes, Zapote, 
Guatemala city (Champion). 
1 The tarsi of Holosternus are correctly, and those of the other 
genera incorrectly, shown in the published figures of these genera. 
