Coleopterological Notices, VII. 561 



Actiastes n. gen. — Pounded upon a minute species previously 

 referred by me to Actium, but differing so much in the arrange- 

 ment of the cephalic fovese, more elongate basal segment of the 

 dorsum and other characters, as to demand a separate genus. Its 

 type is Trimium foveicolle Lee, which I have taken abundantly 

 in Rhode Island, and also received through Mr. Schmitt, from 

 the mountains of Pennsylvania. Gostalis, of Brendel, undoubtedly 

 belongs to this genus, and may be identical with foveicoUis ; but 

 if his measurements are correct, it must be materially larger. 



Cupila n. gen. — This distinct genus has for its type the Tri- 

 mium clavicorne, of Maklin, a male of which, from Astoria, 

 -Oregon, was kindly given me by Mr. Schwarz. The black color 

 ■of the body alone might have led to the inference of generic 

 divergence from Actium, in which the species are all pale, 

 us this difference in the coloration would tend to indicate marked 

 differences in habits and environment. The genus departs from 

 Actium in its less convex and more linear form of body, com- 

 plete absence of discal elj'tral stria, this being replaced by the 

 elongate basal fovea of Trimium, in its elongate basal segment of 

 the dorsum, this having two extremely minute and parallel basal 

 carinse separated by scarcely ^ of the discal width, and other 

 •characters as related in the table. The sparse subdecumbent 

 pubescence of the abdomen streams outward in a remarkable 

 manner, and the male ventral characters are very striking and 

 confined to the third segment ; this segment is profoundly ex- 

 cavated to its base at about lateral third, the excavations ap- 

 parentl}^ confluent beneath the median ligula, which is dilated at 

 apex and impressed iaterall}'. The hind tarsi are long, with the 

 second joint fully f longer than the third. The under surface 

 of the head has exceedingly few erect setae, their extremities 

 minutely capitulate as usual. 



Simplona n. gen, — The transverse pronotal sulcus in this genus 

 terminates laterally in slightly dilated, ver}^ deep and perfectly' 

 nude fovese near the rounded and indefinite lateral margin, as in 

 Trimium, and the tenth antennal joint is as strongly triangular in 

 a transverse sense as in Trimiopsis, and more so than in Trimium. 

 From the latter genus it is distinguishable at once by the large 

 ^nd deep post-humeral fovea and pleural carina, which are there 

 Kjompletel}^ wanting. The single type is described as follows : — 



