﻿142 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



Heart Lake in Essex County, Horton, Ithaca, Keene Valley in Essex 

 County, McLean, Milford Center, Millwood, Ringwood in Tompkins 

 County, Shokan, and Slaterville) ; Nova Scotia (Cape Breton Island, 

 Kentville, and Petite Riviere); Ohio (Columbus and Put in Bay), 

 Ontario (Apple Hill, Jordan, Kearney, Niagara Glen, Norfolk, 

 Orillia, Ottawa, Ridgeway, Simcoe, Smoky Falls on the Mattagami 

 River, and Trenton) ; Pennsylvania (North East) ; Prince Edward 

 Island (Brackley Beach and Dalvay House, both in the Canadian 

 National Park, and Hampton) ; Quebec (Aylmer, Brome, Hemming- 

 ford, Lake Opasatika, Lanoraie, Laniel, Meach Brook Cascades, 

 Norway Bay, St. Annes, Ste. Agatha des Montes, and Sweetsburg); 

 Saskatchewan (Earl Grey); Vermont (Rutland); and West Vir- 

 ginia (Bolivar). Collections dates are concentrated in the period 

 from June 20 to August 10, but many others show the normal flight 

 range to be from about June 5 to August 29. There is a single 

 September record: September 22 at Bolivar, W. Va. Many speci- 

 mens from western Canada are somewhat intermediate to the sub- 

 species R. harnstoni perplexus, and one or more specimens from the 

 following localities could as well be assigned to either subspecies: 

 Sudbury, Ontario ; Waskesiu Lake, Saskatchewan; Grimshaw, Alberta; 

 Likely, British Columbia; and Rolla, British Columbia. 



This subspecies is transcontinental in the Canadian and in the 

 cooler parts of the Transition Zone. In the Western United States 

 it is replaced by R. harnstoni perplexus, with which it intergrades in 

 western Canada. 



lOb. RHYDINGFOENUS BARNSTONI PERPLEXUS (Cresson), new status, new combination 



Foenus perplexus Cresson, Proc. Ent. Soc. Philadelphia, vol. 3, p. 131, 1864. 



Type: ?, Colorado (Philadelphia) . 

 Foenis fragilis Bradley, Trans. Amer. Ent. Soc, vol. 34, p. Ill, 1908. Type: 9 , 



Montana (Philadelphia). (New synonymy.) 

 Gasferuption alticola Kieffer, Ann. Soc. Ent. France, vol. 79, p. 76, 1910, Type: 



9 , Ouray, Colo., 8,000 feet (Claremont, Calif.). (New' synonymy.) 



Fine transverse wrinlding of top of head usually rather strong. 



Colored as in R. harnstoni harnstoni except that the female has less 

 white on the hind tarsus and more ferruginous on the abdomen as 

 stated in the key. Typical females have the second and third tergites 

 almost entirely ferruginous and the hind tarsus entirely blackish or 

 with 0.5 or less of the basitarsus white. Sometimes, especially in the 

 southern part of the range of the subspecies, the fourth tergite also 

 is partly or entirely ferruginous. Males have the abdominal ferrugi- 

 nous markings averaging larger than in R. harnstoni harnstoni, but the 

 difference in extent is usually minor or indistinct and frequently not 

 enough for safe use in making determinations. 



This subspecies has a close superficial resemblance to R. occidentalis 

 but is easily distinguished by its narrow occipital carina. 



