244 U- S. NATIONAL MUSEUM BULLETIN 216 part s 



and apical carina of propodeum is a very little more separated from 

 basal carina. 



Colored like the female of T. albitarsis albitarsis except that there 

 is a white band on flagellar segments 4-9, the band brown below. 



Type: 9, Lost River State Park, Hardy Co., W. Va., July 1, 1953, 

 K. V. ICrombein (Washington, USNM 63783). 



Paratype: 9, Lost River State Park, Hardy Co., W. Va., July 5, 

 1955, K. V. Ki-ombein (Townes). 



34. Trachysphyrus albitarsis (Cresson) 



Front wing 4.5 to 12.0 mm. long; lower half of frons with moder- 

 ately strong transverse wrinkling; temple about 0.55 to 0.70 as long 

 as eye, rather weakly convex; epomia long and strong; mesoscutum 

 polished, with moderately large punctures that on the lateral lobes 

 are separated by about 0.6 theu- diameter; mesopleurum of male with 

 close, rather coarse punctures that on median part of mesopleurum 

 are crowded; mesopleurum of female with rather coarse close punc- 

 tures marginally, medially the punctation replaced by reticulate 

 wrinkling; basal and apical transverse carinae of propodeum very 

 close together, the apical carina forming a rather prominent sublateral 

 crest; hind femur about 7.0 as long as deep in male, about 6.0 as long- 

 as deep in female; areolet narrowly pentagonal, the intercubiti strong- 

 ly convergent; second recurrent vein rather strongly sinuate; oviposi- 

 tor sheath about 0.68 as long as front wing; ovipositor about 4.0 as 

 long from nodus to apex as it is deep at nodus. 



This is a very common species over most of the United States and 

 the southern half of Canada. Adults occur in sunlit grassy areas, 

 usually where there are interspersed trees and shrubs. The species 

 is divisible into four subspecies as keyed and described below: 



1. Hind femur black 2 



Hind femur red 3 



2. Scutellum of male with a median white spot; wings of female subhyaline to 



weakly infuscate; range: east of hundredth meridian except for parts of 



Canadian zone 34a. albitarsis albitarsis (Cresson) 



Scutellum of male entirely black; wings of female moderately to strongly 

 infuscate; range: Rocky Mountain area, Mexico, parts of Canadian zone in 

 Eastern United States, and scattered localities within the ranges of the sub- 

 species mutatus and rufovinctus . 34b. albitarsis argentifrons (Cameron) 



3. Hind coxa black; range: parts of the northwestern quarter of the United 



States and adjacent Canada 34c. albitarsis mutatus (Pratt) 



Hind coxa red; range: Pacific states and parts of Idaho, Nevada, Utah, and 

 southern British Columbia .... 34d. albitarsis rufovinctus (Pratt) 



34a. Trachysphyrus albitarsis albitarsis (Cresson) 



Ichneumon vinctus Say, 1829, Contr. Maclurian Lyceum Arts Sci., Philadelphia, 

 vol. 1, p. 70 (Leconte ed., vol. 1, p. 375) ; cf . Name preoccupied by Schrank, 

 1781. Type: c?, Indiana (destroyed). 



