SPONGILLA-FLIES — PARFIN AND GURNEY 485 



3. Forewing with 3d r close to 2d r and basad of point of coalescence of Sc and 



Rl, with cell 2d Rl not more than two or three times as long as broad 



(pi. 2, figs. 3, 4) 4 



Forewing with 3d r usually under pterostigma or at level of point of coa- 

 lescence of Sc and Rl, not close to 2d r, cell 2d Rl more than three times 

 as long as broad (pi. 2, figs. 1,5) 5 



4. Pale portion of pterostigma narrow, covering one or two costal cross-veins; 



wing membrane extensively brownish; face yellow, vertex yellow with 

 small blackish spot immediately behind antennae; each half of ninth tergite 

 of female a little over one-half as wide as long (fig. 20, a; pi. 2, fig. 4). 



tenebra, new species (p. 501) 

 Pale portion of pterostigma broader; wing membrane less brownish; face with 

 longitudinal brownish streak, vertex brown; each half of ninth tergite 

 of female two-thirds as wide as long (fig. 21; pi. 2, fig. 3). 



calif ornica Chandler (p. 491) 



5. Forewing with pale area of pterostigma long (covering about seven costal 



cross- veins) ; 3d m between MA and MPl-f2 long, usually obliquely 

 directed basad; antennae brownish black; tenth tergite of male with 

 ventral border widened, dorsal border narrow (fig. 18; pi. 2, fig. 1). 



areolaris (Hagen) (p. 486) 

 Forewing with pale area of pterostigma short (covering about four costal 

 cross- veins) ; 3d m between MA and MPl + 2 shorter, usually directed 

 distad; antennae with blackish band between two yellow portions; tenth 

 tergite of male of almost uniform length dorsally and ventrally (fig. 19, 

 pi. 2, fig. 5) striata, new species (p. 499) 



6. Forewing with basal radiomedial streak longitudinally elongate (pi. 2, figs. 



1-5, 8,9) 7 



Forewing with basal radiomedial streak transversely elongate (pi. 2, figs. 

 6,7) 9 



7. Radiomedial streak short, straight, barely reaching 1st r; no pronounced 



spotting or streaking other than setal spots on longitudinal veins (pi. 2, 



fig. 9) nota, new species (p. 503) 



Radiomedial streak longer, more or less crescent shaped, reaching beyond 

 1st r; streaking or spotting other than setal spots may be present . . . 8 



8. Radiomedial streak long, narrow, usually beginning from where Rs-FMA 



and MP approach each other basally; antepterostigmal spot usually pro- 

 nounced; subcostal cross- vein dark; longitudinal veins without pronounced 

 setal spots; each half of ninth tergite of female moderately elongate and 



broad (fig. 22,e; pi. 2, fig. 2) chapini, new species (p. 495) 



Radiomedial streak shorter, usually beginning from where Rs-|- MA separate 

 from Rl basally; antepterostigmal spot either absent or faint; subcostal 

 cross- vein pale; longitudinal veins with pronounced setal spots; each half 

 of ninth tergite of female more elongate, narrower (fig. 23, a; pi. 2, fig. 8). 



basalis Banks (p. 504) 



9. Forewing with basal radiomedial streak broad anteriorly, narrow posteriorly, 



directed basad; remainder of forewing clear except for antepterostigmal 

 spot (also broad anteriorly, narrow posteriorly) ; setal spots not pronounced; 

 female with each half of ninth tergite considerably elongate and narrow 



(fig. 23,b; pi. 2, fig. 6) bimaculata Banks (p. 507) 



Forewing with basal radiomedial streak directed distad; indistinct anteptero- 

 stigmal spot; setal spotting pronounced; light brown intervenational 

 streaking along inner and outer margins; female with each half of ninth 

 tergite moderately elongate (fig. 24, b; pi. 2. fig. 7). 



carpenter!, new species (p. 511) 



