94 Myron Harmon Sivenk 



red or red, or entirely of a red color. The spots vary in size all 

 the way from tiny dots to spots involving the whole of the 

 sclerite together with a broad line on the metanotnm, and this 

 without relation to locality. In the series of thirty females, most 

 of them have the red of the abdomen of the same shade as in an 

 Illinois specimen of cnncata 5 received from Robertson, but a 

 few specimens, all from eastern Nebraska, have it a bit paler. 

 Two females from Sioux county in extreme northwestern 

 Nebraska are as dark as the darkest. A pair from Manhattan, 

 Kansas, dififer in no way from specimens in the Nebraska series. 

 In view of all these facts the writer is forced to the conclusion 

 that the alleged differences between lepida and cnncata are more 

 individual variation than geographical variation, and that prob- 

 ably both forms will be found together in most if not all the 

 localities in which the species occurs ; consequently their con- 

 tinued separation, even as subspecies, is unwarranted and cnncata 

 is here relegated to synonymy. 



In 1903 Cockerell recorded this species, as A^. cnncata, from 

 Lincoln and Cedar Bluffs, Nebraska. The species occurs 

 throughout the state, having been collected not only in the locali- 

 ties mentioned by Cockerell but at Roca, Ashland, South Bend, 

 Bellevue, Falls City, Indianola and in Sioux county. It flies 

 from April 13 to June i, commonly at flowers of Rihes gracile, 

 Salix nigra, Prunus americana, Fragaria virginiana, Rubus 

 occidentalis, Taraxacum Jaraxacmn, Corniis stolonifera, Macro- 

 calyx nyctelea, etc., as well on several cultivated fruits and orna- 

 mentals, notably plum, apricot, gooseberry, strawberry, Tamarix 

 gallica, cultivated Spiraea, etc. Robertson's color varieties of 

 the female are represented in the Nebraska series as follows: 

 lo-notata by one specimen, 8-notata by twelve specimens, 6-notata 

 by five specimens, 4-signata by eight specimens, while still 

 another form, which has spots on sides of tergite 2 only, is repre- 

 sented by five specimens. 



Nomada (Gnathias) carolinae Cockerell. 



1903. Nomada carolinae Cockerell, Proc. Acad. Nat. Set. Phil., p. 

 595 and pp. 602-03, ?. 



94 



