SUBFAMILY II. — CAPSIN^. 777 



embolium and cuneus pale translucent yellow; membrane dusky trans- 

 lucent, with some vague spots across the middle darker; legs pale straw- 

 yellow; under surface pale brown. Joints 1 and 2 of antennae wholly 

 yellowish, 3 and 4 tinged with fuscous; 1 nearly three-fourths as long 

 as width of head across eyes, 2 three times as long as 1, 3 three-fifths 

 as long as 2, 4 three-fifths the length of 3. Pronotum relatively short 

 and wide, nearly twice as wide at base as long, finely rugose-punctate. 

 Elytra finely scabrous. Length, 5 mm. 



Portage, N. Y., June 22 (Gerhard). Long Island, N. Y., June 

 27 (Davis). Ranges from Massachusetts west to Missouri. 

 Breeds on white oak, Quants alba Linn. 



808 ( — ). Lygus quercalb^e Knight, 1917, 624. 



Pale reddish-brown or brownish-yellow thinly clothed with prostrate 

 yellowish hairs ; head usually with a series of oblique transverse reddish 

 lines each side of front and vertex; calli and basal half of pronotal disk 

 often more or less tinged with fuscous; scutellum pale straw-yellow, the 

 sides slightly darker; clavus and apical half of corium dark brown, the 

 brown of the latter often forming a bar reaching across the embolium, 

 this sometimes with outer portion reddish; cuneus pale translucent, the 

 tips often reddish; membrane pale fuscous, paler on middle of sides, 

 veins yellowish or reddish; legs pale yellow, femora marked with red- 

 dish, hind ones with apical two-thirds in great part reddish to fuscous; 

 ventrals greenish-yellow with a pale stripe on sides bounded within by 

 fuscous, without by reddish. Antennae with joint 1 and basal two-thirds 

 of 2 straw-yellow, apical third of 2 and all of 3 and 4 tinged with fus- 

 cous ; 1 two-thirds as long as width of head across eyes, 2 three times 

 the length of 1, 3 nearly half the length of 2, 4 half as long as 3. Pro- 

 notum finely closely and shallowly rugose-punctate. Eytra finely scabrous. 

 Length, 5.7 — 6.2 mm. 



Lake and Marion counties, Ind., May 24 — Aug. 14 ; beaten 

 from white oak (W.S.B.). Glen Ellyn and Willow Springs, 

 111., May 30— June 10 (Gerhard). Pine Island, N. Y., June 19 

 (Davis). The known range extends from Massachusetts and 

 Connecticut west to Wisconsin and south to Virginia. Breeds 

 on white oak, usually in some abundance, and its distribution 

 is probably much more extensive than at present recorded. 

 Knight states that in New York the nymphs hatch with the 

 bursting of the oak buds, and feed thereafter on the tender 

 foliage. The adults mature in early June and deposit their eggs 

 in the twigs of the host plant, where they remain over winter. 



809 ( — ). Lygus omnivagus Knight, 1917, 627. 



Very similar in form, size and color to quercalbee. Differs in lacking 

 the red markings of head, embolium, legs and under surface; membrane 

 pale hyaline, apical half of cells, and three spots toward apex fuscous; 

 hind femora with apical third fuscous-brown ; ventrals with a vague 



