HETEROMERA, 505 
thorax is truncate at the base, with the sides only feebly sinuate behind; the antennz 
are very slender, with the tenth joint greatly widened; the elytral punctuation is 
coarse, and the elevations consist of oblique, partly coalescent, lines and points and a 
short carina at the base, each surmounted by very coarse, short, suberect hairs. The 
punctuation of the upper surface is completely hidden by the earthy coating. 
6. Astrotus nosodermoides. (Tab. XXII. fig. 22.) 
N snl subparallel, black, thickly covered with a brownish agglutinated earthy coating, the prothorax with 
coarse, decumbent scaly hairs, the elytra (apparently) with very short ‘suberect hairs. - Head coarsely, 
muricately punctured; antenne slender, the intermediate joints ovate, longer. than. broad, the tenth 
greatly widened ; prothorax broader than long, not wider at the base than at the apex, moderately 
narrowed in front and behind, slightly sinuate before the base, the latter truncate, the apex rather 
deeply emarginate, the anterior angles prominent, the hind angles subrectangular, the disc moderately 
convex, the lateral margins considerably raised, the surface covered with scattered granular elevations ; 
elytra rather elongate, not wider than the prothorax, subparallel, widest beyond the middle, obliquely 
narrowed at the base, and flattened on the disc, with an interrupted, serrate, marginal carina extending 
from the obtuse humeri nearly to the apex, a stout, straight, median carina extending to the middle, and 
beyond this several raised points and curved, transverse, irregular elevations, the interspaces and the 
- epipleure exceedingly coarsely, sparsely punctate ; the entire under surface coarsely, densely punctured ; 
prosternum declivous behind; middle coxal cavities almost closed externally ; anterior tibic with a sharp 
tooth at the apex. 
Length 7, breadth 3 millim. 
Hab. Mexico, Real del Monte (Richardson). 
One specimen. More parallel and more elongate than A. seticornis; the thorax 
truncate at the base, and with the sides only feebly sinuate behind; the elytra with 
the elevations differently arranged, and the punctuation exceedingly coarse and sparse. 
The entire upper surface is covered with an earthy incrustation, so that the pubescence 
and sculpture is in great part hidden. 
SICHARBAS (p. 67). 
Sicharbas lobatus (p. 67). 
To the locality Mexico, add :—Omilteme in Guerrero (H. H. Smith), Huitzilac in 
Morelos (Hége). 
Many specimens. 
OLOGLYPTUS (p. 68). 
Ologlyptus anastomosis (p. 68). 
To the locality Mexico, add :—Refugio in Durango, Santa Clara in Chihuahua, 
Chihuahua city (Hoge). 
Chihuahua specimens agree with Leconte’s figure; the others I have seen from 
Mexico have the elytral costes more interrupted. 
