456 CASEY 



prothorax but only about two-fifths wider, very coarsely punc- 

 tured, the punctures separated by more than twice their own 

 widths, the interspaces nearly flat and with a very few small and 

 widely scattered punctures ; under surface with the usual coarse 

 sculpture. Length 6.3-7.3 rnm.; width 4.2-4.8 mm. Arizona 

 (Benson), — G. W. Dunn lineatus n. sp. 



13 — Body somewhat elongate-oval, convex, somewhat piceous-black, 

 the legs rufescent, the surface dull in lustre ; pubescence sparse, 

 coarse, moderately long, fulvo-cinereous in color and not defi- 

 nitely lineate on the elytra, rather close and conspicuous on the 

 head, the latter relatively large, fully as wide as an elytron, 

 rather finely, sparsely punctured, the punctures but little coarser 

 or less sparse laterally but with the surface feebly and longitu- 

 dinally rugulose ; second antennal joint but little longer or thicker 

 than the fourth, not abruptly constricted at base; prothorax of 

 the usual form, not quite four times as wide as its median length, 

 rather coarsely, sparsely punctate, very coarsely and densely so 

 at the sides; elytra just visibly longer than wide, elliptical, the 

 sides more broadly rounded toward base than usual and making 

 a very feeble angle with the sides of the prothorax, the surface 

 uneven because of the very large and deep, unevenly impressed 

 punctures, which are separated by about twice their own widths, 

 the interspaces minutely rugulose and with rather small scattered 

 punctures. Length 6.2 mm.; width 4.2 mm. Colorado, — F. 

 H. Snow subaequalis n. sp. 



Body much more narrowly oval in form, convex, black, rather dull 

 in lustre, the pubescence finer, sparser, somewhat less erect and 

 shorter than xwsubceqtialis^ more ashy-white in color and similarly 

 devoid of lineal arrangement on the elytra ; head relatively large, 

 fully as wide as an elytron in the apparently female type, the 

 punctures small and sparse, rather coarser but not very close-set 

 though somewhat muricate laterally, the second antennal joint 

 rather longer but only slightly thicker than the fourth and not 

 abruptly constricted at base; prothorax of the usual trapezoidal 

 form, with straight sides, but only a little more than three times 

 as wide as its median length, not very coarsely, remotely punctate 

 medially, becoming gradually very coarsely and densely so later- 

 ally ; elytra evidently longer than wide, about five times as long as 

 the prothorax and barely a third wider, the sides toward base feebly 

 rounded and making but a slight angle with the sides of the pro- 

 thorax, the surface much smoother than in subcegualis^ less 

 coarsely and more perforately punctate, the punctures not very 

 close-set, uneven in size ; epipleurae extending to the middle of 

 the metasternum. Length 5.5 mm. ; width 3.75 mm. Texas. 



angustulus n. sp. 



There is apparently but little doubt of the specific validity of 

 nearly all the forms above described, and there are probably as 



