TRIBOLIUM.—ALEGORLIA. 149 
TRIBOLIUM. 
Tribolium, MacLeay, Annal. Jay. 1825, p. 47; Lacord. Gen. Col. v. p. 323; Horn, Rev. Ten. of 
Am. north of Mexico, p. 365. 
A cosmopolitan genus, two or three species of which are found in almost all parts 
of the world. Two species are found in our country, both, doubtless, introduced. 
Another species (7. madens, Charp.) is found abundantly in North America wherever 
grain is stored, according to Dr. Hom; I have not seen it from our country. 
1. Tribolium ferrugineum. 
Trogosita ferruginea, Fabr. Spec. Ins. i. p. 324 (1781). 
Hab. Mxxico, Guajuco in Nuevo Leon, San Pedro in Coahuila (Dr. Palmer), Oaxaca, 
Tuxtla (Sallé); Guatemata (Sallé), San Gerénimo (Champion); Panama, Volcan de 
Chiriqui, Caldera, David (Champion).—Evrorr &c. 
2. Tribolium confusum. 
Tribolium confusum, Jacq. Duval, Gen. Col. Eur. Cat. 1868, p- 181, nota. 
Hab. Mexico, Guajuco in Nuevo Leon, San Pedro in Coahuila (Dr. Palmer), 
Guanajuato (Sallé).— Europe; Japan. 
ALEGORIA. 
Alegoria, Castelnau, Hist. Nat. ii. p. 221 (1840) ; Lacordaire, Gen. Col. v. p. 325; F. Bates, Ent. 
Monthly Mag. ix. p. 182. 
Allegoria, Gemm. & Har. Cat. vii. p. 1959. 
Hylonoma, De}. Cat. 3rd edit. p. 221. 
Four species have been described of this New-World genus; others, undescribed as 
yet, exist in collections. In Alegoriathe penultimate joint of the tarsi is very distinctly 
sub-bilobed. The different species are found beneath bark in forest districts; the genus 
ranging from Mexico to Parana. | 
1. Alegoria sallzi. (Tab. VII. fig. 11, ¢.) 
Alegoria sallei, F. Bates, Ent. Monthly Mag. ix. p. 181’. 
Hab. Mexico! (coll. F. Bates), Tehuantepec (Sailé). 
2. Alegoria dilatata. 
Alegoria dilatata, Cast. Hist. Nat. ii. p. 221 (1850)"; F. Bates, Ent. Monthly Mag. ix. p. 182 
(foot-note). 
Hylonoma sinuatocollis, De}. Cat. 3rd edit. p. 221. 
Hab. Muxico (coll. F. Bates) ; GUATEMALA (Mus. Stuttgart), San Juan in Vera Paz 
