234 MEMOIRS ON THE COLEOPTERA 



not quite so prominent as the eyes, or ( 9 ) very large, nearly two- 

 thirds as wide as the prothorax, smoother and less punctate, strongly 

 swollen at base, the tempora more prominent than the eyes, which 

 are less convex than in the male, the eyes separated by two-fifths 

 more than their own width; elytra ( 9 ) nearly three-fifths longer than 

 wide. Length (cf) 27.0-30.0, (9) 33.0-39.0 mm.; width (cf ) ll.o- 

 12.0, (9) 15.0-18.0 mm. Northern New York and New England 

 to District of Columbia. [P. laticollis Drury, 111. II, 1773, Ind.; 

 I, p. 83; brevicornis Fabr., Syst. El. II, p. 260; LeConte, Journ. 



Acad. Phila., 2nd ser., II, p. 109] laticollis Drury 



A Similar to laticollis, except that the head (c?) is less developed, 

 not quite three-fifths as wide as the prothorax, with the eyes 

 separated by evidently less than their own width, or ( 9 ) not quite 

 so large, rather more than three-fifths as wide as the prothorax, 

 the eyes separated by but little more than their own width, the 

 tempora parallel, nearly straight and equally prominent as the 

 eyes, the elytra ( 9 ) notably shorter than in laticollis and not 

 entirely covering the abdomen, barely one-half longer than wide. 

 Length (cf) 21.5-25.0, (9) 30.0-38.0 mm.; width (cT) 9.5-10.7, 

 (9) 14.0-16.0 mm. The length as in all the other species of 

 Prionus being measured from the apex of the mandibles to the 



end of the elytra. Indiana, Levette oblongus n. subsp. 



Prothorax much narrower than the elytra, distinctly narrower at base 

 than at apex; elytra much narrowed from base to apex. General 

 color and sculpture throughout as in laticollis; head, prothorax and 

 elytra increasing progressively and almost uniformly in width, the 

 first two-thirds as wide as the prothorax, the eyes convex, separated 

 by about two-thirds their width, the tempora much less prominent 

 and feebly converging to the base; antennae nearly similar but shorter 

 and apically more slender; prothorax very much smaller, very short, 

 about three-fourths as wide as the elytra, as in laticollis except that 

 the sides behind the medial teeth rapidly converge to the base, the 

 basal angles much more than right but with their apices more acute 

 and prominent than in laticollis; elytra narrower and tapering, with 

 more arcuate sides, the apex much less broadly obtuse. Length 

 (cT) 19.8 mm.; width 8.7 mm. A single specimen of unknown 



origin and unindicated locality parvus n. sp. 



5 Hind angles of the prothorax wholly obliterated, very broadly and 

 evenly rounded. Body very stout, convex, the pronotum not much 

 more so than the elytra, black, slightly picescent posteriorly and 

 beneath, the abdomen testaceous throughout, head very large, 

 fully three-fourths as wide as the prothorax, the eyes scarcely at all 

 convex, the tempora parallel, feebly arcuate, slightly swollen beyond 

 the eyes, the latter separated by a little less than their own width; 

 antennae black, very stout basally, rather rapidly tapering and feebly 

 picescent distally, the last joint a little longer than the preceding, 

 almost four times as long as wide, widest near tip, its inner face 

 oblique in more than apical fourth; prothorax a little more than twice 

 as wide as long, rather strongly but sparsely, irregularly punctate, 

 the median tooth rather strong, very acute and slightly reflexed; 



