BIOLOGIA CENTRALI-AMERICANA. 
ZOOLOGIA. 
Class INSECTA. 
Order COLEOPTERA. 
Tribe HETEROMERA (continued). 
Fam, LAGRITIDA. 
The bulk of the Central-American representatives of this family belong to one genus, 
Statira ; a few are referable to Colparthrum ; and for the remainder several new genera 
are required. These latter are chiefly based upon the structure of the mandibles and 
labial palpi, characters first noticed by Kirsch in the genus Colparthrum: in one, Epi- 
cydes, the antenne have a very short third joint; and in Othryades (as in Colparthrum) 
the metasternal episterna have a narrow, deep, and well-defined groove along the inner 
and anterior margins, a character apparently of generic value in this family. Stzlpno- 
notus * (= Calophthalmus, Th.) is also here included in the Lagriide; this genus was 
referred by Thomson to Group III. of the “'Ténébrionides vrais” of Lacordaire and 
stated to be allied to Boros}. It has, however, very strongly exserted and subcon- 
tiguous anterior cox, thus differing from the Tenebrionide; it agrees, in fact, in this 
respect with the Old-World genus Lagria, though possessing a very different facies. 
In Stilpnonotus, as in the other genera here included in this family, the anterior 
coxal cavities are closed behind. 
The genera represented in our fauna may be tabulated thus :— 
Anterior cox moderately exserted, not contiguous, the prosternum raised 
between them ; epistoma separated from the front by a deep groove ; 
antennary orbits prominent. 
Antenne not gradually thickening from the base to the apex; the apical 
joint long, or at least as long as joints 9 and 10 united. 
Apical joint of the labial palpi narrow and ovate; mandibles simply 
unidentate or feebly bifid at the apex. 
Intermediate joints of the antenne normal . . . . . . - Statira. 
Intermediate joints of the antenn flattened, 6 and 7 the widest. Uroplatopsis. ~ § % 
* In Gemminger and Harold’s Catalogue, vii. p. 1999, this generic name is erroneously sunk as a synonym 
of Eurypus, Kirby; the latter has the anterior coxal cavities widely open behind. 
+ In Boros (a genus included in the Pythide by Leconte and Horn) the anterior coxal cavities are also 
open behind. 
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 2, April 1889. BB 
