386 CALIFORNIA ACADEMY OF SCIENCES. 



In the male the fifth ventral segment is broadly and 

 deeply emarginate and the eyes closer on the vertex. In 

 the female the fifth ventral is obtuse at apex. 



Occurs in Texas, New Mexico, Canada (Quebec), 

 Nevada, California, Oregon, and Washington. 



Sparedrus Schmidt. 



Form slender. Eyes deeply emarginate. Mandibles 

 simple at apex. Antenna? slender, scarcely at all sub- 

 serrate, eleven-jointed, three-fourths the length of the 

 body. Tibia? with two terminal spurs. Tarsi with two 

 joints spongy-pubescent beneath, the two penultimate 

 joints bilobed. Claws simple. 



In this genus I place one species described by Dr. 

 LeConte as Calopus, from which it is removed by reason 

 of the form of the mandibles and tarsi. From any litera- 

 ture at my disposal I am unable to find any characters by 

 means of which the species may be separated from Spare- 

 drus, and it seems preferable to place it as such rather 

 than suggest a new name to which I can assign no differ- 

 ential characters. 



Some Mexican species described by Mr. Champion 

 (Biologia iv, pt. 2) as Calopus seem far more closely re- 

 lated to the species here discussed than to the true type 

 of Calopus, and should my suggestion of Sparedrus prove 

 incorrect for our species it is probable that all of these 

 should be associated under a new generic name. 



Sparedrus aspersus Lee. New Species, 1866, p. 163. 



Form elongate, parallel, brownish testaceous, with 

 short, sparse, cinereous pubescence. Head coarsely and 

 densely punctate, smoother between the eyes. Thorax 

 longer than wide, sides feebly arcuate, disc moderately 

 convex, slightly depressed posteriorly. Surface coarsely 

 and closely punctate. Elytra more coarsely punctate 



