CERAGENIA.—EVANDER. 71 
CERAGENIA. 
Ceragenia, Serville, Ann. Soc. Ent. Fr. 1834, p. 32. 
Peculiar to Tropical America. Three species are known. 
1. Ceragenia leprieuri. 
Ceragenia Leprieurii, Buquet in Guér. Icon. R. A. iii. p. 219°. 
Hab. Panama, Chiriqui (7bb¢).—Soutn America, Cayenne !. 
Agrees with C. lepriewri in the spinose apices of the four hinder tibiz and the equally 
spined exterior angle of the elytral truncature. C. spinipennis, Bates, from the 
Amazons, agrees in these points of structure, but differs a little in colours and markings. 
EVANDER. 
Evander, Thomson, Class. Long. p. 377 (1860). 
Amphidesmus, Guérin, Mag. Zool. Ins. t. 146 (1844, nec Serville). 
A genus peculiar, as far as at present known, to Mexico and the adjoining parts of 
Central America; but it is closely allied to West-African and South-American genera. 
Four species are known. 
1. Evander nietoi. 
Amphidesmus Nietii, Guérin, Rev. Zool. 1844, p. 258; Mag. Zool. Ins. t. 146 (1844) *. 
Evander Nietoi, Harold & Gemminger, Cat. Col. p. 2964. 
Hab. Mexico (Nieto +). 
2. Evander nobilis. (Tab. VI. fig. 11.) _ 
Evander nobilis, Bates, Trans. Ent. Soc. 1872, p. 192. 
Hab. Nicaragua, Chontales (Belt). 
‘This species closely resembles EZ. nietot in colours, one variety having the black 
‘circumscutellar spot which seems at first sight to be distinctive of H. nietoi. The 
scutellum, however, seems to be constantly different in form, being narrow with straight 
sides in E. nobilis, and broad with incurved sides and narrowed to a point in E£. nietot. 
3. Evander unicolor. (Tab. VI. fig. 12.) 
E. néetot proxime affinis. Supra isabellino-fulvus, occipite, lineis tribus thoracis (mediana abbreviata) scutelloque 
nigris ; antennis, pedibus et corpore subtus nigris, pro- et mesosterno medio, femoribus anticis macula 
fulvis; thorace grosse confertissime scabroso-punctato, disco sulco angusto longitudinali; antennarum 
scapo antice retuso nigro-piloso. 
Long. 113 lin. ¢. 
Hab. Costa Rica, Cache (fogers). 
The sculpture of the thorax is different from that of H. nietot, the punctuation being 
much coarser and interrupted in the middle bya deeply impressed dorsal line extending 
