124 ENTOMOLOGICAL SOCIETY 



tered, rather large hyaline spots, most numerous in apical part; vena 

 tion very pale. Hind wings hyaline. Head rather more transverse than 

 usual, vertex convex; ocelli large, nearer to median line than to eyes; 

 posterior warts small; antennae almost crenulate beneath, basal joints 

 not very long; maxillary palpi of female long, last joint a trifle longer 

 than penultimate. Spurs 1-3-4. Costal area of fore wings rather 

 broad; outer margin rounded; radius not bent at pterostigma; discal 

 cell fully twice as long as pedicel, and about as long as any apical cell; 

 first apical cell reaching back on discal nearly one half way; fifth 

 apical but little before anastomosis, acute at base; posterior anasto 

 mosis oblique, the cubitus not disjointed at that place. In hind wings 

 the discal cell is longer than pedicel, but not nearly as long as some of 

 the apical cells; first apical some distance on discal cell; fifth not 

 reaching back of anastomosis, acute at base; the second vein beyond 

 the fifth apical cell forms an elongate, closed cell with the next vein, 

 as in figure (so in both hind wings). Margins of wings with rather 

 long fringe. 

 Expanse, 15 mm. 



One female from Boulder, Colo., July 31 (Oslar). 

 Probably related to the Stenophylax dubius of Europe, which 

 has a long first apical cell in fore wings. 



Notidobia assimilis, n. sp. (PL VIII, fig. 8). 



Body black, base of abdomen beneath yellowish, appendages yellowish ; 

 legs brown, very slender; wings yellowish brown, with sparse gray 

 vestiture, venation brown, mostly indistinct, fringes black; hair on face 

 black, on abdomen pale, but sparse, on appendages black and long; 

 abdomen of male long and slender. Male appendages broad, concave 

 within, a small notch above toward base, outer edge with several long 

 spine-like bristles; on upper inner corner is a recurved tooth within as 

 in the two species from California described by McLachlan; the median 

 piece is large, blunt-pointed, and the tip is seen in side-view; the tip 

 of abdomen, both above and below, bears many long, curved hairs. 



Expanse, 19 mm. 



Two specimens from San Diego, Cal. (Field). 



Brachycentrus similis, n. sp. (PI. IX, fig. 21). 



Head brown, white hairs above; maxillary palpi brown, with gray 

 hairs in front; labial palpi paler; antennae with basal joints dark brown, 

 beyond paler brown, narrowly annulated with yellow; thorax dark, a 

 broad pale stripe on the middle ; abdomen dark brown, with yellowish 

 and whitish hairs; legs yellowish, anterior femora blackish, others 

 barely so. Wings smoky, darker on costal region near tip, a few faint 



