BITOMA, 459 
agree with Pascoe’s type, but I should not have surmised the identity from his 
-description. 
3. Bitoma subfasciata, sp. n. 
Depressa, fusca ; elytris versus humeros et apicem rufescentibus ; antennis pedibusque rufis. 
Long. 3 millim. 
Hab. Mexico, Cordova (Sallé); GuaTemaLa, Zapote, Capetillo, Chacoj, Chiacam, 
San Gerénimo, Tamahu (Champion); Panama, Volcan de Chiriqui (Champion). 
Very closely allied to B. soctalis, but in all its variations differing somewhat in 
colour, the elytra being infuscate across the middle transversely, or entirely fuscous ; it 
is a somewhat larger insect, with rather smaller club to the antennz, and the underside 
of the eyes not so large, so that the eyes on the under surface of the head are separated 
by a wider space. The epistome in B. sudfasciata is more truncate, being not emar- 
ginate in the middle, and having the sides less rounded. The sculpture of the upper 
surface is not so coarse in B. suéfasciata as it is in B. socialis. 
B. subfasciata is equally close to B. ornata, but the latter insect is more elongate ; 
the red markings form four definite spots on the elytra, and the eyes underneath are 
considerably less large. 
A pale unicolorous variety occurs not unfrequently in this species. This variety 
resembles B. pauxilla, Pascoe, which, however, is a considerably narrower and smaller 
insect. 
4, Bitoma ornata. 
Ditoma ornata, Leconte, Proc. Acad. Phil. 1858, p. 63°; Horn, Proc. Am. Phil. Soc. xvii. p. 566%. 
Hab. NortH America, California}, Arizona?.—MeExico, Northern Sonora (Morri- 
son). 
5. Bitoma centralis, sp. n. 
Depressa, opaca, nigro-fusca; antennis pedibusque rufo-obscuris; elytris sanguineis, singulo nigro triguttato 
vel subfasciato. 
Long. 3 millim. 
Hab. GuatEeMaua, Capetillo (Champion); Panama, Volcan de Chiriqui 2000 to 4000 
feet (Champion). 
Extremely closely allied to B. ornata and B. subfasciata, though readily enough 
distinguished in the typical form by the variegation of the elytra; a variety (2) occurs 
(more commonly than this type form), in which the elytra are entirely obscure blackish, 
and this I can only satisfactorily distinguish from similar dark varieties of B. subfasciata 
by the larger club to the antenne. ‘The thoracic carine are very strongly elevated, 
the outer one flexuous; the disc of the thorax between the median lines is hollowed. 
3 N*2 
