90 Journal of Entomology and Zoology 



tJenus Phyllolahis Osten Sacken. 

 Phyllolabis lalifolia, sp. n. 



General coloration light gray; wings pale gray, the stigma pale grayish brown; 

 R2+3 shorter than RS alone; cell 1st M2 short; male hypopygium yellow with the 

 foliaceous appendage of the eighth sternite very broad and but indistinctly bifid at 

 its tip. 



Male. — Length about 6.5 mm.; wing, 7.5 mm. 



Rostrum dark brown, heavily gray pruinose above; mouth-parts reddish brown; 

 palpi dark brown. Antenna; moderately elongate, dark brown throughout, the flagellar 

 segments long-oval, provided with venticils that are but little shorter than the seg- 

 ments. Head light gray with an indistinct black median line. 



Pronotum rather large, heavily light gray pruinose. Mesonotal prxscutum 

 brownish gray pruinose without distinct stripes; pseudosutural foveae black, short- 

 triangular; tuberculate pits not evident; remainder of the mesonotum gray pruinose, 

 the scutellum more brownish. Pleura clear light gray. Halteres pale. Legs with 

 the coxae and trochanters pale brownish yellow; remainder of the legs dark brown, 

 the bases of the femora paler. Wings pale gray; stigma rather indistinct, pale 

 grayish brown; veins dark brown; Sc and the abortive vein behind Cu more yellowish. 

 Venation similar to P. clai'iger but R2+3 shorter, less than R3 alone; veins R2 and R3 

 more divergent, R2 at the wing-margin being distinctly closer to R1 than to R3 ; cell 

 1st M2 shorter, especially the outer deflection of MS. 



Abdomen brown, sparsely gray pruinose. Hypopygium light yellow, including 

 the pleurites and pleural appendages. Genitalia similar to P. clavigrr, differing as 

 follows: outer angle of the pleurite much longer, projecting conspicuously beyond the 

 pleural appendages; dorsal pleural appendage not slender and strongly bent at mid- 

 length but very broad and flattened, roughly subtriangular with the base narrowest. 

 Foliaceous appendage of the eighth sternite very broad and flattened, widest at the 

 base, thence wlili the sides almost parallel slightly expanded at the distal end, the 

 caudal margin of this leaf-like lobe slightly concave, feebly or indistinctly notched 

 medially. 



Habitat. — Oregon. 



Holotype, <J , Forest CJrove, March 2%, I9I9 ( F. R. Cole). 



Genus Tricypliona Zetterstedt. 

 Tricyt>hona sfiarsi/>unila. sp. n. 



Close to T. srptentrionalis Bergr. ; median prcsculal stripe split by a pale line; 

 wings subhyaline, the costal region more yellowish; r-m connecting R-f-^5 and Ml +2. 



Femalf. — Length, 7.5 — 8.8 mm.; wing 9.2 — 11 mm. 



Rostrum very short, transverse, dark brown, sparsely gray pruinose, the anterior 

 margin with a row of a few long yellowish bristles; mouth-parts and palpi dark 

 brown. Aniennx dark brownish black, the basal four or five segments enlarged and 

 very crowded as in this group of species. Head dark brown above, the front and a 

 narrow margin around the eyes and across the anterior part of the vertex light gray. 



Mesonotum very high and gibbous. Mesonotal prsrscutum light grayish yellow, 

 with three dark brownish stripes, the median stripe split by an indistinct pale capil- 



