NATHAN BANKS. 253 



broken into spots, the anal margin toward base almost wholly brown, surface with 

 scattered short yellowish hairs. Hind wings hyaline, veins yellowish. Abdo- 

 men yellowish. 

 Length 1(5 mm. 



St. Anthony Park, Minnesota (R. H. Pettit). 



Liinnioplii In* am erica ii us n. sp. 



Pale yellowish, head between antenna? and basal joints of antennae beneath 

 more reddish; thorax with a pale reddish brown stripe each side; wings yellow- 

 ish hyaline, marked, chiefly in the posterior half, with light brown, hefore the 

 middle of the discal cell there arises a whitish oblique mark, which cuts across 

 the brown part, and at anastomosis another mark, which, however, does not ex- 

 tend completely across the brown, and before middle of the apical cells is another 

 whitish, somewhat crescentic mark, the middle of apex of wing is hyaline, but 

 the third cell is brown, as well as most of the subapicals; the pterostigmatic re- 

 gion is slightly brownish ; legs pale yellowish, the spines black, except those on 

 the anterior face of the fore tibiae, which are yellowish. Wings of moderate 

 length, discal cell a little longer than the pedicel, first apical about its width on 

 discal cell, fourth apical narrow at base, fifth a short distance on thyridial area, 

 cubitals fractured at anastomosis. 



Length 14 mm. 



Idaho (C. V. Piper). One from Orono, Maine (Harvey), appears 

 to belong to this species, but it is rather smaller and darker. 



Limuophilus cousimiliis n. sp. 



Clear pale yellow, clothed with yellow hair; thorax and abdomen pale brown, 

 middle of thorax clothed with yellow hair, legs pale yellow, spines black; wings 

 yellowish hyaline, veins yellow, posterior half of wing light brown ; through the 

 middle of the thyridial area is a silvery-white stripe, which at base turns slightly 

 backward, limited behind by a dark brown stripe, first and second apical cells 

 pale throughout, the others silvery white in base, limited by a wavy, dark brown 

 mark, the third and fourth pale to beyond middle, the fifth on less than basal 

 half, the thyridium broadly marked with brown from one anastomosis to the 

 other, a silvery spot in thyridial cell near base, costal space unmarked, fringe on 

 apex of wing blackish ; discal cell plainly longer than its pedicel, fifth apical cell 

 only a short distance on thyridial area; hind wings hyaline, grayish on tip, 

 veins yellowish. 



Length 18 mm. 



South Park, Colorado, August (Oslar). 



Related to L ornatus Bks., but wings broader, the silvery mark 

 not oblique, the fifth apical cell pale only in base, and other differences. 



A syn ar<*hns centralis a. sp. 



Black, clothed with black hair; palpi slender; hasal joints of antennae long 

 and well separated, rest of antennae narrowly annulate with pale; femora at tips, 

 most of tibiae and the tarsal joints pale; spines black; wings uniform blackish, 

 sparsely clothed with very short, nearly golden hair, veins almost black, arculus 

 and thyridium white, membrane not granulate, discal cell once and one-half as 



TRANS. AM. ENT. SOC. XXVI. MAY, 1900. 



