512 SUPPLEMENT. 
The typical form has been received in plenty from the States of Hidalgo and San 
Luis Potosi. The variety (?) is not uncommon at Guanajuato; but as these specimens 
differ a good deal inter se, it is inadvisable to treat them as distinct. 
Elzodes ventricosa (p. 78). 
To the locality Mexico, add :—Monterey in Nuevo Leon (Hége), Tampico in Tamau- 
lipas (Aichardson). 
Var. The prothorax a little more elongate and with the anterior angles more prominent. 
Hab. Mexico, Villa Lerdo in Durango, Durango city, Saltillo in Coahuila (Hége). 
We have received numerous examples of both forms. In the single male from 
Coahuila the caudal process of the elytra is considerably reduced in length. LE. ventri- 
cosa should be placed in the same section as E. rugosa and E. eschscholtzi, the elytra 
being caudate in the male. 
Elzodes hispilabris (p. 79). 
To the Mexican locality given, add :—Nuevo Laredo in Tamaulipas ( Hage). 
Sent in great numbers by Herr Hoge from Nuevo Laredo. 
Elzodes gracilis (p. 79). 
To the Mexican locality given, add :—Paso del Norte and Santa Clara in Chihuahua, 
Chihuahua city, Saltillo in Coahuila (Hége). 
The four specimens received from Saltillo have the elytral interstices convex. 
Elzodes obscura (p. 79). 
To the Mexican locality given, add :—Santa Clara in Chihuahua (Hoge). 
9(a). Eleodes tricostata. 
Blaps tricostata, Say, Journ. Acad. Phil. iii. p. 262 (1824) *; Complete Writings, ii. p. 154°, 
Pimetia tricostata, Kirby, Fauna Bor.-Am. iv. p. 282, t. 5. fig. 9°. 
Eleodes tricostata, Horn, Rev. Ten. of Am. north of Mexico, p. 307 *¢. 
Eleodes (?) planata, Solier, Studi Ent. p. 366°. 
Eleodes robusta, Lec. Proc. Acad. Phil. x. p. 183°. 
Hab. NortH America, plains of Kansas and Nebraska and southward into Texas 4.— 
Mexico, Nuevo Laredo in Tamaulipas (Hége). 
Found in abundance at Nuevo Laredo, just within our northern boundary. 
