NORTH AMERICAN COLEOPTERA. 83 



traded in depressions,, and the knees form fovete in the epi pleurae 

 even to their outer edge. There is to be seen a faintly impressed 

 line near the front angles of the thorax, closer, however, to the front 

 angles and less impressed than usual in Smilia. 

 These sj^ecies are known : 



Black shiuiug, head and sides of thorax often pale; lengtli .07 inch, -ptifiiilla. 

 Castaneous, thorax at middle broadly piceous ; beneath black ; length .Oti inch. 



cataliiiie. 

 Testaceous ; length .03.5 inch pallida. 



C pnsilla Lee, Proc. Acad. 1852, p. 135 ; puncticollis Lee. loc. cit. 



Broadly oval and convex, a few punctures on the head and thorax, surface 

 otherwise polished. 



Two forms occur which are probably sexual : 



C. puncticollis is entirely black, the legs usually piceous or black. 



C. pusilla has the sides of the thorax variably pale, head and 

 legs bright yellow. 



Occurs from Michigan to Georgia, westward to Nebraska and 

 Arizona. 



C. cataliiiie n. sp. — Similar in form to pusilla, castaneous, middle of thorax 

 and narrow space at base of elytra piceous, body beneath black, head and legs 

 bright yellow. Head smooth, with a few short erect hairs. Thorax with few 

 scattered punctures near the middle. Body beneath smooth, last ventral segment 

 paler at middle. Length .06 inch. ; 1.5 mm. 



One specimen Catalina, S. Cal., sent me by Mr. H. C. Fall. 



C. pallida Lee, Proc. Am. Philos. Soc. 1878, p. 400. 



Precisely similar to pusilla in form and sculpture, but is very 

 much smaller and entirely testaceous. 



One specimen (cab. Lee.) Sand Point, Fla. 



Serangium maculigerum Blackb. seems to belong to this genus. This 

 is one of the Australian species, of wliich probably a few were in- 

 troduced into California, but none have since been found. Specimens 

 were sent me by Mr. Koebele. 



SCYMNIIS Kug. 

 The only attempt at a treatment of our species of Scymvus was 

 made by Dr. LeConte in 1852 (Proc. Acad. Nat. Sci. ), since which 

 time nothing has been done other than the description of three new 

 species by Crotch and three by LeConte. In that paper twenty-seven 

 species were recognized, while seven described previously by MuLsant 

 and Melsheimer remained unidentified, but have since been deter- 



TR.\NS. AM. ENT. SOC. XXII. APRIL. 1895. 



