Dec, I9I2.] Fall: North American Collops. 267 



Say described the species somewhat vaguely from the Mississippi 

 region. It is not rare in parts of New England and Ulke records it 

 from the District of Columbia as does Wickham from Iowa, but it 

 is not given in the New Jersey, western Pennsylvania or Cincinnati 

 lists, nor is it mentioned by Blatchley in his Coleoptera of Indiana. 

 Specimens are known to me from Quebec (Rigaud), Maine, New 

 Hampshire, Massachusetts, Michigan, Nebraska, Dakota, Montana, 

 Saskatchewan, Colorado, Utah, Texas and Arizona. 

 C. necopinus, new species. 



Head greenish black, labrum and clypeus pale; antennae entirely pale ((^), 

 or blackish, with the basal joint and joints 2-4 in part pale ($). Prothorax 

 rufous with discal black spot, sometimes involving all but a narrow margin. 

 Elytra- dark blue, the median portions of the sutural and lateral margins very 

 narrowly rufous ; presternum rufous, meso- and metasternum black ; venter 

 rufous, sides heavily maculate with black ; legs black, the front femora rufous ; 

 the front tibiae and middle femora also frequently more or less pale. Head very 

 finely punctate, moderately shining ; prothorax polished with a few minute 

 scattered punctures, most noticeable at sides ; elytra densely, moderately 

 strongly punctured and moderately shining. 



Male. — Basal joint of antennae rather robust, ovate-triangular as viewed 

 from the front, evidently longer than wide, a little flattened on its anterior 

 face; second joint scarcely as long as wide, appendix rather short, outer joints 

 not very strongly serrate. 



Female. — Second antennal joint stout, not much longer than wide, wider 

 than those following and scarcely as long as the next two. Length 3H-4H n^m. 



Southern California — San Diego (type), Pomona, San Bernar- 

 dino, Claremont, Laguna Beach. 



A series from Campo, San Diego Co., on the edge of the desert 

 differs in having the elytra green instead of blue, and in having the 

 narrow sutural pale stripe almost obliterated; these appear to me to 

 be only a local variety. This is perhaps the commonest species of the 

 genus in southern California. It possesses very nearly the structural 

 characters of vittafiis and may be an extreme form of that variable 

 species; the color differences are however apparently constant, the 

 surface more shining than in the western forms of vittatns and the 

 second joint of the antennae in the <^ is relatively wider. 



C. punctulatus Lee. Proc. Acad. Nat. Sci. Phila., 1852, p. 165. 



A small depressed species, varying in length from 2^^ to 4 mm. and differ- 

 ing from all others in our fauna by the prothorax being finely evenly alutaceous 

 and dull throughout, with fine, sparse, evenly distributed punctuation. The 



