SUBFAMILY IX. — PHYLIN^E. 931 



uu. Larger, length 4.5 — 4.9 mm.; pale area of corium extending 

 back along the radial vein ; females with fuscous area on 

 apical half of corium separated into two elongate spots by 

 backward extension of pale area along radial vein. 



1055. ALBORADIALIS. 



1038 (1239). Plagiognathus obscurus Uhler, 1872, 418. 



Head, sides of basal half or more of pronotum, middle of scutellum, 

 clavus except outer margin, and a large wedge-shaped spot on apical 

 half of corium, black or fuscous-black; calli and narrow edge of embolium 

 dull yellow; corium with basal third and a ray extending back along 

 claval suture to apex of commissure, dull white; basal two-thirds of 

 cuneus whitish, apical third fuscous, edges yellowish; membrane fuscous, 

 spot near tip of cuneus whitish, veins yellow. Joints 1 and 2 of antenna? 

 black, their incisures paler, 3 and 4 dusky yellow; legs dull yellow, outer 

 apical half of under surface paler on sides ; hind femora with a vague 

 bar and two rows of small dots fuscous ; tips of beak and tarsi fuscous ; 

 ventrals fuscous to blackish, paler on sides. Upper surface rather 

 thickly clothed with conspicuous inclined yellow hairs. Beak reaching 

 first ventral. Length, 4 — 4.4 mm. 



Wilmington, N. Y., July 12 (Davis). Ranges from Nova 

 Scotia, Quebec and New England west to Victoria, B. C, Kan- 

 sas and Colorado. Not recorded in the east south of New 

 Jersey. Uhler states that in Maryland it occurs on flowers of 

 the ox-eye daisy, and when approached attempts to hide be- 

 neath the calyx of the flowers. 



1039 ( — ). Plagiognathus flavoscutellatus Knight, 1923, 440. 



Head with vertex and front greenish-yellow; tylus dark brown, shin- 

 ing, cheeks fuscous; pronotum dark brown, its narrow front and side 

 margins and sometimes a vague median spot, greenish-yellow; scutellum 

 as in del of key; clavus and apical half of embolium and corium dark 

 brown to blackish ; basal half of corium and embolium, narrow costal 

 margin and base and outer margins of cuneus pale, the pale hue of 

 corium extending farther back along radial vein than along claval suture; 

 membrane a uniform fuscous-brown, the veins paler; legs dull yellow, 

 femora dotted as in key; under surface fuscous-black or brown with yel- 

 low pubescence. Joints 1 and 2 of antennae dark brown; 1 about one- 

 sixth shorter than width of vertex, its extreme tip pale; 2, four and one- 

 half times longer than 1 ; 3 and 4 fuscous, 3 three-fifths the length of 2, 

 4 two-fifths as long as 3. Upper surface sparsely clothed with yellow 

 pubescence. Length, 4.2 — 4.6 mm. 



Marion Co., Ind., June 30 — July 15. The known range ex- 

 tends from Nova Scotia and New England west to Minnesota, 

 mainly north of latitude 40°. Host plant, the sand-bar willow, 

 Salix fluviatilis Nutt. 



