502 Pomona College Journal of Entomology 



Tlior.ix large, brond, not strongly .arclied, coarsely ])iinctate, often striped lon- 

 gitudinally. Pronofiim long; lateral tubercle of pronotum large; pleurites small 

 rel.itively , quadrate, compressed ; foreeoxiF moderately large, largely visible. Dor- 

 sulum longer than pronotum, transversely sliorter. Wings very large, flavous, 

 subliyalinc, a little more tiian twice as long as broad, broadest across first marginal 

 cell subapically, very broadly rounded at apex; apex at or above termination of 

 fourth fureal; first marginal cell large; second cubital arcuate; radius rather short, 

 curved sliglitly ; cubital petiole usually nearly as long as discoidal subcosta; ptero- 

 stigma wanting, or nearly so; venation conspicuous. 



Male — Abdomen moderately large. Genital segment large, prominent, broad- 

 est at base; claspers long, spatulate, attenuate at base; anal valve large; posterior 

 lobe long, slender, stiffly pubescent; inferior epiphysis acute, quite long; axial 

 epipliysis long; penis large. 



Female — Abdomen stout. Genital segment long, almost as long as rest of ab- 

 domen; dorsal plate longer and slightly less acute than ventral; pubescence stiff, 

 prominent. 



Redescribed from four females from Aaken, Germany, determined by Dr. Franz 

 Low, and from several males and females in the C. F. Baker collection from Colo- 

 rado. Some of the European specimens are apparently co-types of Aph. flavipen- 

 nis Forster. 



Aphalara nebulosa Zett 



(Figure 159, P) 



(Syn. Aph. radiata Scott, Aph. gramina Thorns, [nee Linne.]) 



Length of body 1.9 mm.; length of forewing 2.6 mm.; greatest width 1.1 mm.; 

 width of vortex between eyes .38 mm.; with eyes .78 mm. General color brown, 

 with light brown to yellowish markings and spots; abdomen darker; vertex lighter 

 on border, dark discalh' ; antennae and legs light. 



Head scarcely deflexed, not large, finely punctate; profile subtriangular, rounded 

 in front. Vertex flat, not rounded, somewhat descending, with a sliallow fovea 

 on each side in rear center, and a shallow divergent impression extending for- 

 ward therefrom ; occipital margin arcuate, not elevated narrowly ; vertex almost 

 black on impressed area, with a yellowish margin all around, narrower in front; 

 black area confluent at median suture; postoeellar areas but slightly elevated; an- 

 terior margin emarginate at median suture, receding to anterior margin of eye. 

 Facial cones entirely wanting; antenrial bases slightly swollen. Labrum small, 

 posterior, subglobose ; rostrum short; genie scarcely swollen. Eyes relatively 

 rather large ; anterior ocellus beneath vertex somewhat stalked, not visible from 

 above. Antenna quite long, slender, filiform ; two basal segments darker colored. 



Tliorax not strongly arched, broader than Iiead with eyes, punctate. Pronotum 

 not very long, lighter in color than rest of notum ; lateral tubercle about as large 

 as episternum, pleurites small, quadrate, compressed; forecoxfe small, not extend- 

 ing to lower margin of mesopleurites. Dorsulum relatively rather long, darker 

 than, pronotum but lighter than scutum ; transversely shorter than pronotum. 

 Wings rather large, subhyaline, maculate apically and less so basally; with a dis- 

 tinct complete band extending from termination of radius across wing diagonally 



