THE CANADIAN ENTOMOLOGIST 201 



AMERICAN TRICHOPTERA— NOTES AND 

 DESCRIPTIONS. 



BY NATHAN BANKS, EAST FALLS CHURCH, VA. 



(Continued from p. 156.) 



RYACOPHILID^E. 

 Rhyacophila bifila, n. sp. (Figs. 53, 56.) 



Female: Related to R. coloradensis, the female appendages on 

 the same plan, but both upper and lower pieces are more slender. 

 Black, with black and gray or whitish hairs; palpi dark brown; 

 antenna? brown,, annulate with pale. Wings dark brown, densely 

 irrorate with pale; the costal area mostly pale, stigma long and 

 dark, outer margin with pale spots between the veins; in hind 

 wings the stigma is also very long and dark; forks 1 and 2 equal 

 in length, fork 3 reaching more than one-half way on fork 4. 



Expanse 21 mm. 



From Vernon, British Columbia, August (Bryant). 



Rhyacophila acropedes, n. sp. (Fig. 39.) 



Blackish, with black bristles and golden hair; palpi pale; 

 posterior warts pale; antenna} yellowish brown; thorax with two 

 strips of golden hair; legs pale, basal part of tibia I and II to mid- 

 dle spurs dark, basal parts of all tarsi dark; spurs blackish, Wings 

 yellowish brown, darker near tip, mostly unmarked, but around 

 apical margin are dark spots at ends of veins and pale spots be- 

 tween them; thyridial spot hyaline white; base of stigma dark; in 

 hind wings, which are gray, the stigma is wholly dark. In fore 

 wings fork 2 is a little longer than fork 1, fork 3 hardly one-half 

 as long as fork 2, fork 4 with base nearly opposite fork 1 ; discal 

 fork not before fork of median vein. 



Expanse 20 mm. 



From Deer Creek, Provo Canyon, Utah, 21 Aug. (Spalding). 



Rhyacophila tripartita, n. sp. (Fig. 54.) 



Palpi brown, paler on base; antenna} pale, annulate with brown ; 

 head and thorax with pale golden hair; legs pale, darker on tarsi. 

 Wings pale brownish, with faint darker brown transverse marks, 

 on stigma the marks are very distinct, also dark marks along 

 cubitus, and at ends of veins; hind wings yellowish brown, the 



June, 1914 



