108 INSECUTOR INSCITI^ MENSTRUUS 



b.alf of scape yellow, rest of anteniice reddish-testaceous; legs, 

 except coxaj, yellow ; mandibles, except apices, yellow. 



Habitat: Smith's Cove, Nova Scotia. 



Type, Cat. No. 19761, U. S. Nat. Mus. 



Described from two of each sex received from Mr. C. A. 

 Good, the two males with the date July 31, 1915, the type 

 female August 7, 1915, the paratype female August 11, 1915. 



Superfamily APOIDEA 



Ccslioxys cockerelli, new species. 



C. altcrnata, Cwfd. not Say, Ann. Ent. Soc. Amer , vii, l48, 149, 

 1914. 



Female. Distinguished by the characters given in the table 

 cited above, to which may be added that it closely resembles 

 C. hunteri Cvv^fd. especially in the shape of the last dorsal and 

 ventral segments, but it is less closely punctured, especially on 

 the abdomen, and the next to last ventral on the apical half is 

 sparsely finely punctured (densely so in hunteri) ; impunctate 

 areas along inner margins of eyes and around ocelli are less 

 swollen and distinct. 



Described from one female labeled ''Colo. 1463," collection 

 C. F. Baker. 



Type, Cat. No. 199G3, U. S. Nat. Mus. 



Named after Prof. T. D. A. Cockerell in recognition of the 

 valuable work done by him on the North American Apoidea. 



Perdita bruneri Ckll. 



P. bruneri Ckll. male not female, Ent. News, viii, 23, 1897. 



P. cockerelli Cwfd. male and female, Can. Ent., xxxviii, 383, 1906, 



Professor Cockerell has recently presented the types of about 

 80 species of bees to the National Museum, among them the 

 types of this species, and I am able to establish the above 

 synonymy. 



In describing this species he has incorrectly associated the 

 sexes and called both "type." I herewith select the male as 

 the type of the species since it has place priority. The error in 

 later determinations came about through my sending only 

 females to Professor Cockerell for naming and having the 



