rf 



June 1900] Casey: On North American Culeoptera. 143 



tlie densely pubescent basal area extending well beyond the middle and not 

 shaiply defined, the pubescence of the remaining parts being in large part similar 

 in color but sparser. Length 5.7-7.4 mm.; width 2.5-3.2 mm. Vancouver Is- 

 land and New Mexico (PVt Wingate) signatus I ec. 



12 — Body oblong-oval, more depressed than usual, pale rufo-ferruginous throughout 

 above and beneath and clothed with rather sparse fulvous pubescence, the elytra 

 black, e.xcept at the basal margin and along the sides to basal fourth or more, 

 the black parts clothed uniformly with inconspicuous blackish pubescence ; ab- 

 domen without quasi-denuded spots. Length 6.3 nmi.; width 3.0 mm. Illinois. 



pulcher Lee. 



13 — Narrow and convex ; body and legs throughout uniform dark piceous-brown in 

 color, thepronotura rather finely, not very densely punctate, deeply and narrowly 

 bisinuate at base, broadly biimpressed at the basal margin, with rounded hind 

 angles, the vestiture uniform throughout and consisting largely of fulvo-cinereous 

 hairs ; elytra clothed rather sparsely with dark pubescence, with fulvo-cinereous 

 hairs sparsely and uniformly interspersed throughout ; pubescence of the under 

 surface denser and uniformly tlavo-cinereous, the abdomen without quasi-denuded 

 spots. Length 6.7 mm.; width 2.7 mm. Texas (El Paso). 



angustus, sp. nov. 

 Sobriniis of LeConte, I have been unable to identify amidst the 

 material accessible to me. Rattiis and sign a/us are by no means 

 varietal forms, but perfectly valid and very interesting species ; 

 niannerheimi seems, however, to be a variety of the very widely dis- 

 tributed caninus ; it is wholly different from marmflratiis, as I have 

 previously pointed out (Bull. Bk. Ent. Soc). The identity of 

 nmcoreus and carnivonis rests upon the authority of the Hanshaw 

 List. Say described his nuhihis from Florida and Pennsylvania, and 

 the characters given coincide entirely with those of caninus and 

 not with the more pubescent form named nuhipennis above. 



Attagemni. 



This is the largest tribe of the family, and contains a considerable 

 number of genera having the legs more or less free throughout. The 

 laminate portion of the hind coxce extends about half way across the 

 end of the parapleur?e ; the epipleurje are distinct and generally 

 strongly defined toward base, and the prosternal process is visible, 

 though generally narrow, between the coxoe, its free tip resting in an 

 apical pit of the mesosternum which is frequently prolonged to the 

 apex of the latter as a well-defined sulcus or fossa. The antennae are 

 of varied structure, and the antennal fossa may be traced in successive 

 stages of development through the genera in an instructive and inter- 

 esting manner. In the first four or possibly five genera of the tribe, 



