28 MEMOIRS ON THE COLEOPTERA 



the size materially larger, the prothorax larger and more transverse. 

 Length (cf 9 ) 11.5-12.5 mm.; width 4.8-5.3 mm. Canada (Aweme, 

 Manitoba), Criddle bucolica n. sp. 



Color paler but rather dark brown, the white sides of the elytra prolonged 

 anteriorly almost or quite to the humeral lunule; prothorax smaller, 

 only very slightly transverse and not quite as wide as the head in 

 either sex, not at all as in the preceding, where it is fully as wide as 

 the head to evidently wider. Length (c? 9 ) 10.5-12.5 mm.; width 

 4.0-5.2 mm. Long Island to Colorado and Manitoba. A form 

 represented by three examples from Southern Pines, North Carolina, 

 is exactly similar, except that the posterior oblique part of the middle 

 band is shorter; it is only a very feeble race but may be called bal- 

 timorensis Lee repanda Dej. 



Color still paler and more brownish-bronze, the body very much smaller 

 but especially more slender, the markings of the elytra broader, 

 the side margins broadly united with the humeral lunule. Length 

 (cT ) 9.7 mm. ; width 3.6-3.8 mm. Texas (El Paso) .... unijuncta Csy. 



4 Frontal convexity punctured, rugulose and pubescent throughout 

 its extent in both sexes as in repanda; body above very obscure 

 blackish-cupreous, the maculation consisting of a broadly divided 

 humeral and apical lunule and an elbowed middle band, which is 

 very briefly expanded along the margin in most cases; elytral punc- 

 tures distinct, each attended by a polished granule, with numerous 

 smaller granulae interspersed; under surface blue, the pleura coppery. 

 Length (9) 12.0-12.5 mm.; width 5.3 mm. North Carolina and 

 Iowa (Keokuk) duodecimguttata Dej. 



Frontal convexity wholly different from any in the preceding species, 

 hairless, except a small cluster of erect hairs at each side near the 

 eye in both sexes; middle band of the elytra never dilated at the 

 sides 5 



5 Elytra clearly punctured, the punctures metallic but becoming very 

 fine and sparse toward the suture, everywhere devoid of any trace 

 of elevated shining granules. Color coppery-brown, more metallic 

 coppery toward the sides, colored beneath as in repanda; labrum as 

 usual with a sharp median tooth at the middle of a short truncate 

 extension; vertex concave; prothorax transverse but not so wide as 

 the head, the sulci deep blue; elytra nearly as in oregona but nar- 

 rower, rather convex. Length (9) 13.0 mm.; width 5.0 mm. 

 Kansas sterope n. sp. 



Elytra clearly punctate, each puncture with a sharply elevated polished 

 granule 6 



Elytra not punctured, except near the sides and apex, but densely micro- 

 granulato-reticulate and with many small but sharply elevated 

 shining granules, indicating the position of punctures which have 

 become vestigial and diffused and never metallic, the general surface 

 of the elytra very opaque 8 



6 Elytral humeri more sharply angulate, nearly rectangular, the punc- 

 tures strong; upper surface pure green, less opaque than in any other 

 species of the group, the under surface entirely of a paler and more 

 shining green; elytra without humeral spot, the post-humeral only 



