NATHAN BANKS. 359 



pedicel. Antennae strongly crenulate, the joints not near as long as in 

 D. modes ta. 



Expanse 20 mm. 



From Mt. Tamalpais, Marin County, California, 24 Febu- 

 ary (F. Grinnell). 



Polyceiitropiis reiuotiis n. sp. 



Head with yellowish white hair above and between the antennae, 

 vertex with black hair, tufts of pale at base of wings ; palpi brown ; 

 antennae pale, annulate with brown ; abdomen brown above, yellow- 

 ish beneath ; legs yellowish, tarsi and anterior tibiae rather darker. 

 Wings brown, heavily maculate with pale yellowish, a long pale streak 

 on middle of costal area, apical half of stigma pale, pale spots on mar- 

 gin of wing between the ends of the veins, and many small yellowish 

 patches elsewhere ; thyridium and arculus hyaline white. Hind wings 

 smoky, darker on tips, fringe brown. In fore wings fork 1 is scarcely 

 as long as its pedicel, forks 3 and 4 do not reach back quite as far as 

 fork 2 ; in hind wings fork 1 is also very short. 



Expanse 15 mm. 



From Peachland, British Columbia, 23 July (Wallis). 



Nyctiopliylax moestus n. sp. 



Head with dense pale yellowish hair ; palpi brown, antennas yellow- 

 ish, annulate above with brown ; some black hair above the eyes, on 

 the pronotum, and at base of the wings ; abdomen dark above ; legs 

 pale, the basal joint of tarsi barely darker above, the anterior tibiae 

 and tarsi darker in front. Wings blackish, nearly uniform, but rather 

 darker at tips, in some lights faintly golden at tip ; fringe black ; a 

 faint whitish spot at the arculus ; hind wings smoky, darker at tip, 

 fringe black. Forks 2, 3, 4 and 5 in fore wings, forks 3 and 4 rather 

 short, discal cell longer than pedicel ; in hind wings the cell is closed, 

 forks 2 and 5 present, fork 2 from apex of the cell. 



Expanse 11 mm. 



From Peachland, British Columbia, 19 August (Wallis). 

 Darker than our other species of the genus. 



HYDROPTILID^. 

 Orthotricliia pictipes n. sp. 



Face densely black haired ; basal third of antennae heavy, densely 

 jet black haired, beyond brown, each joint annulate with pale on base; 

 antennas not half as long as wings ; palpi pale yellowish ; vertex with 

 grayish white hair ; thorax mostly with gray hair, a black tuft each 

 side at anterior base of mesothorax ; femora of legs rather pale, tibias 

 darker, mid and hind pairs distinctly fringed behind toward tip ; spurs 

 0-3-4 mostly white, but black on extreme base ; tarsi pale, very dis- 

 tinctly marked with brown on basal part of each joint above ; abdo- 

 men dark. Wings slender, acute ; deep black, in some lights rather 



TRANS. AM. ENT. SOC. , XXXVII. 



