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U. S. NATIONAL MUSEUM BULLETIN 209 



fuscous at the base and sometimes diffusely infuscate on up to half 

 its area (if more extensively infuscate, the specimen is assigned 

 to the subspecies borealis); hind tibia more or less infuscate basally 

 and apically, always with at least a faint infuscation on the inner side 

 near its apical 0.25; abdomen rufous, blackish at the base and black 

 to rufo-fuscous beyond the third segment. Wings subhyaline, the 

 forewing with the usual subapical and apical infuscation and with 

 or without a weak infuscation along the basal vein. 



This subspecies occupies typically the Alleghenian and Carolinian 

 faunal areas. At the northern and southern edges of its range it 

 intergrades freely with the subspecies borealis and rupex respectively, 

 and occasional individuals with the typical coloration of these two 

 occur well within the range of the present subspecies. 



Figure 56. — Localities for Calicurgus hyalinatus alienatus. 



Specimens (2389): From Alabama (Pyriton); Alberta (Scandia); 

 Connecticut (Colebrook, East Haddam, East Hartford, Lyme, 

 Milford, and Stafford); District of Columbia; Georgia (Atlanta 

 and Kockmart); Illinois (Chicago); Indiana (Oaldandon and Vin- 

 cennes); Iowa; Kansas (Baldwin, Coffey County, Douglas County, 

 Manhattan, and Marion County) ; Maryland (Takoma Park) ; Maine 

 (Belfast and Southport); Massachusetts (Blue Hills, Cheshire, Cum- 

 mington, Holliston, Windsor, and Woods Hole); Michigan (Ann 

 Arbor); Minnesota (Crookston, Floodwood, Houston, Itasca Park, 

 Lake Itasca, Norman County, Olmsted County, Ortonville, and 

 Princeton); New Hampshire (Hampton and Pelham); New Jersey 

 (Adele, Burlington County, Camden County, Englewood, Hartford, 

 Moorestown, Rancocas, and Riverton) ; New York (Alleghany State 

 Park, Babylon, Bemus Point, Browns MiUs, Cold Spring Harbor, 

 Coram, East Aurora, Gowanda, Ithaca, Lake Placid, Lakeside Park, 



