162 U- S. NATIONAL MUSEUM BULLETIN 216 parts 



Jacksonville); Virginia (Galax and Skyline Drive); Washington 

 (Ashford, Conway, and Elbe) ; West Virginia (Cheat Mt. in Randolph 

 Co.); Wisconsin (Sawyer Co.); and Yukon (Canyon Creek, Dawson, 

 and Rampart House). 



Dates of collection are from late spring to late summer. The 

 earliest and latest dates are: May 10 and 14 at Highlands, N.C.; 

 May 13 at Banff, Alta.; May 18 and 30 at Ithaca, N.Y.; May 23 at 

 Mount Pisgah, N.C.; May 25 at Miners Bay, Ont.; August 25 at 

 Laniel, Que. and on Slide Mt., N.Y. at 2,800 to 4,000 ft.; August 26 

 on Mount Mitchell, N.C. at 4,000 to 6,500 ft.; August 27 at Hope, 

 Idaho; August 28 at Spring Brook, Pa.; September 2 and 5 on Mount 

 Pisgah, N.C. at 4,600 to 5,749 ft. ; and September 6 at Doughton 

 Park, N.C. 



Reared specimens are as follows : 9, from Acleris variana, no further 

 data. 29, from Choristoneura fumiferana, Stanley, B.C., Aug. 3 

 and 5, 1930, W. G. Mathews. 9, from Polychrosis niteana, North 

 East, Pa., 1916. Our collections of the species have been in rather 

 dense woods, either deciduous or mixed woods. 



This species is transcontinental in the Transition and Canadian 

 zones. 



10. Ischnus politus, new species 



Male: Unknown. 



Female: Front wing 5.2 to 5.3 mm. long; body slender; clypeus 

 narrow; segments of female flagellum slender; mesoscutum polished, 

 weakly mat in front, its punctm-es small, strong, separated by about 

 their diameter; scutellum with lateral carinae only at its basal corners; 

 mesopleurum polished or subpolished, with irregular small, weak 

 punctures that are separated by about 2.0 their diameter, in some areas 

 the punctures partly obscured by weak wrinkling; metapleurum 

 subpolished, with rather large, weak punctures that are separated 

 by about 0.5 their diameter, toward the hind coxa with some fine irreg- 

 ular wrinkling; propodeum subpolished but with an irregular surface 

 of obscured fine wrinkling and punctures ; apical carina of propodeum 

 rather weak but distinct, its median 0.35 ± lacking; postpetiole 

 weakly mat, with fine, weak, irregularly spaced punctures that are 

 separated by about 3.0 their diameter; second tergite wealdy mat, 

 with small, rather weak punctures that are separated by about 1.5 

 their diameter, the punctures smaller and sparser toward apex of the 

 tergite than basally. 



Black. Cheek usually with an obscure whitish mark; palpi dark 

 brown ; band on flagellum absent or represented by a white mark on 

 upper side of one segment ; tegula dark brown ; coxae and trochanters 

 blacldsh brown, the second trochanters often fulvous brown; femora 

 ferruginous, the apical 0.12 ± of hind femur moderately infuscate; 



