AMERICAN COLEOPTERA. 39 



The species are testaceous in color and resemble each other very 

 closely, but the prothoracic differences seem to warrant their reception 

 as distinct. 

 Head testaceous, side margin of prothorax widely explanate behind, gradually 



narrowed in front 2. 



Head fuscous 3. 



2. — Front sparsely punctured, not channeled ; vertex more deeply excavated, occiput 



channeled; 14 mm.; Tex.; (six specimens) frontalis^ n. sp. 



Front and vertex with a distinct channel ; occiput channeled : 12 mm. ; N. Y. ; 



(one specimen) plumosa Oliv. 



.3. — Prothorax jvith the lateral margin very wide and not narrower in front : front 



strongly punctured; 17 mm.; N. Car. ; (Dr. Horn) laticollis n. sp. 



Prothorax with the lateral margin moderate, narrower in front; front sparsely 



punctured; 12 mm.; Tex.; (three specimens) flisciceps Lee. 



Prothorax with the lateral margin narrow; 8.5 mm.: La.; (one specimen, 



Mr. Sall^) Sallei n. sp. 



I may add that the antennae are shorter in the la.st two species, being- 

 less than half as long as the body, while in the others they are nearly 

 two-thirds as long. As there are no other conspicuous differences than 

 those mentioned in the table, longer descriptions are unnecessary, and 

 would only mislead the student. 



ZARHIPIS n.g. 



This genus agrees with Fhengodes, in all respects except the following : 

 The head is less deeply concave between the eyes, and not transversely 

 constricted or impressed behind ; epistome elevated above the labrum ; 

 the elytra are nearly as long as the abdomen, slightly dehiscent and 

 rounded at tip ; the third as well as the fourth tarsal joints are furnished 

 beneath with a distinct membranous sole ; the seventh ventral is acutely 

 emarginate ; the sixth segment is also emarginate, but the seventh is cleft 

 almost to the base, and the lobes sometimes overlap behind presenting the 

 appearance of a narrow closed slit, in which the basal part of the eighth 

 ventral is visible. 



Three species from California are known to me : 



Prothorax with side margin strongly reflexed , 2. 



Prothorax with narrow side margin 3. 



2. — Blackish piceous, mandibles and j^rothorax bright rufo-testaeeous ; base of 

 antennte and scutel reddish, legs tinged with red ; prothorax more strongly 

 margined, and antennae stouter than in integripennis ; 13.5 mm.; Gala.; 



(Hardy, one specimen) ruficollis n. sp. 



Shining rufo-testaceous, elytra piceous, densely rugosely puuetulate, antennae 

 dark, with the base pale; 10— 13 mm. ; Gala integripennis Lee. 



3. — Exactly like integripennis except that the prothorax is more convex, with 

 narrow side margin, and the head behind the eyes under surface of the 

 body are piceous, the legs and scutel are however yellow ; 10 mm. : Berkeley, 

 Gala.; Mr. J.J. Rivers, (one specimen)* piciventris n. sp. 



