426 SUPPLEMENT. 
cylindrico, margine antico rufo-testaceo, grosse punctato, umbone nullo, sulcis delimitantibus obsoletis sed 
ibique linea leviter depressa; antennis articulis 4°-11™ basi testaceis. 
Long. 2-3 lin. 
Hab. Panama, Volcan de Chiriqui, Bugaba (Champion). 
In P. phthisica the thoracic umbo though obsolete is indicated by its marginal sulci 
being always present and sharply incised. In P. awricapilla there are vague linear 
depressions only in place of the sulci. 
TETRAOPES (p. 200). 
Tetraopes thoreyi (p. 201). 
To the Mexican locality given, add :—near the city, Esperanza, Vera Cruz (Hége). 
Tetraopes subfasciatus (p. 201). 
To the Mexican localities given, add :—Milpas (forrer). 
9. Tetraopes 2 
Hab. Mexico, Northern Sonora (Morrison). 
One example of what is probably a variety of the North-American 7. femoratus, Lec., 
differing from the var. oregonensis only in the tibie as well as the femora of all the legs 
being red. 
TETROPS (to follow the genus Tetraopes, p. 200). 
Tetrops, Stephens, Man. Brit. Col. p. 269; Lacordaire, Gen. Col. ix. p. 880. 
A genus charasteristic of North Temperate faunas both of the Eastern and the Western 
Hemispheres. Nine species have been described. The following agrees with the 
European 7. preusta in all essential structural characters, but differs in its shorter and 
thicker antenne. 
1. Tetrops validicornis. 
Cylindrica, supra paullulum deplanata, griseo-lanuginosa, nigra; elytris castaneo-fuscis ; antennis griseo-annulatis, 
articulis 5°-11™ brevibus, subovatis; capite thoraceque sat grosse punctatis, fronte inter antennas lata, 
planata; thorace post medium paullo dilatato, basi transversim mediocriter depresso, angustato; elytris 
undique confertim sublineatim punctatis, apice singulatim late rotundatis, 
Long. 34-34 lin. 
Hab. Muxico, Oaxaca (Hoge). 
MECAS (p. 208). 
Mecas ambigenus (p. 203). 
To the locality Mexico add :—Ciudad in Durango, Milpas (Forrer). 
