May, '07] ENTOMOLOGICAL NEWS. 197 



2 . Scutellnm sometimes entirely black, but often yellow- 

 ish ; margin of the 5th abdominal segment fringed apically with 

 yellow hair. The female has been taken on SalLv discolor, 

 April 30; S. bcbbiana, May 13; Rhodora canadcnsis, May 28; 

 Aesculns liippocastannm. May 31 ; Rosa Iin mills, July ID, and 

 a variety of other flowers as Conius alteniifolia, Viburnum 

 alnifolium and Gaylussacia rcsinosa. 



. All of the workers have the scutellum black, but the 

 apical margin of the fifth segment is fringed with yellow. 

 Collected on Rosa bninilis, July 10; AraUa hispida, July 16; 

 and later on many midsummer and August flowers, as Solidago 

 bicolor, Ganlthcria procumbens and }"icia cracca. 



$ . As remarked by Packard, the male might easily be 

 mistaken for a worker; but the clypeus, which in the worker 

 is smooth, is densely bearded with yellow hair in the male; 

 the scutellum is sometimes black, but often with an admixture 

 of yellow hair. Found visiting the flowers of AraUa hispida, 

 July 15; Epilobium angustifoliiun, July 23; and later on Soli- 

 dago bicolor and Enpatoriwn perfoliatnin. 



Bombus ternarius Say. 



1838, Bombus ternarius Say, <$, Boston Jour., Nat. Hist., I, 414. 



1863, Bombus ternarius Cr., $ $, c?, Proc. Ent. Soc. Phil., 2, 104. 



1864, Bombus ternarius Packard, $ , <$, Proc. Essex Inst, 4, 116. 



2 . the yellow pubescence on the scutellum is in some speci- 

 mens separated into two spots as in B. bifarius, which is prob- 

 ably only a variety of this species. Captured on Sali.v discolor, 

 April 30; S. bcbbiana, May 12; Aesculns liippocastanuni. May 

 31 ; also on Rhodora canadcnsis and Gaylusaccia rcsinosa. 



. The workers are much smaller than the females and 

 the front is nearly black. Taken on Rlnts typhina, July 10; 

 Solidago, September 8; also on Aralia liispida and Eupatorium 

 perfoliatum. 



$ . The form of the male is more slender than that of the 

 worker. I have taken it only on Solidago bicolor. 



Bombus fervidus Fabr. 



1798, Apis fcrvida Fabr., Suppl. Ent. Syst., p. 274. 

 1808, Bombus fervidus Fabr., Syst. Piez., p. 352. 



1863, Bombus fervidus Cr., ? $, c?, Proc. Ent. Soc. Phil., 2, 93. 



1864, Bombus fervidus Packard, $ $, c?, Proc. Essex Inst., 4, no. 



