THE CANADIAN ENTOMOLOGIST 105 



the sides a»id behind. The rows of punctures are sh'ghtly impressed, so 

 that the elytra is faintly striate. The punctures are large, deeply im- 

 pressed, and as closely placed as in the female. The interstrial punctures 

 and granules are much as in the female. 



Key to the American Species of the Subgenus Anisandrus Ferr. 



A. Body stout, cylindric ; hind wings well developed Females. 



B. Pronotum rough throughout, asperations in front, granules 

 behind ; elytral declivity with teeth on 2nd and 3rd inter- 

 spaces tachygraphus Zimm. 



BB. Pronotum nearly smooth behind, 2nd and 3rd interspaces 

 of the elytra without teeth. 



C. The ridge formed on the declivity by 7th interspace 



strongly and sparsely toothed serrattis, n. sp. 



CC. The above ridge not toothed. 



D. Length, 3 mm. to 3)^^ mm.; pronotum as long 

 as wide ; punctures of elytral strife closely 

 placed, the distance between the punctures 

 equal to or less than the diameter of the 



punctures dispar F. 



DD. Length, 2^-2^4 mm.; pronotum wider than 

 long, width : length "6:5; outline of prono- 

 tum from above very broadly rounded in 

 front and truncate behind ; punctures of 

 elytral strias more closely placed, distance 

 between punctures usually greater than 



diameter of punctures minor. '^ 



A A. Body much %vc\^\\^x, flattened, hump-backed and oval in outline from 



above ; wings very small, funclionless Males. 



B. Pronotum and elytra with central portion with only very short 

 hairs, elytra striate, punctures closely placed, regular, inter- 

 spaces with large granules behind dispar F. 



BB. Body entirely clothed with long hairs above ; elytra with 

 rows of punctures, punctures more widely spaced, variably 

 irregular behind, interspaces with the granules very small. 

 C. Pronotum with very minute asperations ; larger, 



I - j-i 3/j^ mm serratus, n. sp. 



CC. Pronotum with sparse, well-developed asperations in 

 front ; smaller, i-i ^ mm minor.* 



*A variety of obesus Lee. (?) 



