942 FAMILY XXIX. — MIRID^E. 



1061 ( — ). Plagiognathus inopinus Knight, 1926, 11. 



Dark brownish-black, clothed with yellowish pubescence; base of 

 vertex and side margins of mesoscutum dull yellow; tip of embolium and 

 inner basal angles of cuneus pale; membrane fuscous, veins and area 

 along tip of cuneus paler; legs straw-yellow, femora with black spots as 

 in dispar, black spots at base of tibial spines larger. Joint 1 of anten- 

 na? two-thirds as long as width of vertex; 2 yellow, fuscous at base, four 

 and two-thirds times as long as 1 ; 3 yellowish to dusky, two-thirds as 

 long as 2, 4 dusky, nearly three-fifths as long as 3. Length, 3.8 — 4 mm. 



Known only from Harrisburgh, Pa., where it was taken in 

 June on sycamore. 



1062 ( — ). Plagiognathus davisi Knight, 1923, 452. 



Black or brownish-black, clothed with erect, rather sparse yellowish 

 hairs ; membrane brownish-fuscous, veins and narrow area bordering 

 tip of cuneus paler; legs yellowish, apical third of front femora with a 

 dark line on upper face, hind femora as in key, tarsi yellowish, third 

 joint fuscous; under surface brownish-black. Joints 1 and 2 of antennae 

 as in key, 1 two-thirds as long as width of vertex, 2 three and a fourth 

 times the length of 1 ; 3 and 4 yellowish, dusky at base, 3 about three- 

 fifths the length of 2, but little longer than 4. 



Known from a single female taken June 20 by W. T. Davis 

 on Pine Island, N. Y. 



1063 ( — ). Plagiognathus flavicornis Knight, 1923, 436. 



Deep black, strongly shining, clothed with yellowish to dusky pubes- 

 cence; membrane and veins wholly dark fuscous; femora as in key, tibiae 

 pale, knees and spots at base of spines black; sternum black, opaque, 

 ventrals shining black. Joint 1 of antennae black, its tip pale, three- 

 fourths as long as width of vertex; 2 as in key, as long as width of base 

 of pronotum; 3 and 4 fuscous, 3 nearly three-fourths the length of 2, 

 4 two-thirds as long as 3. Beak scarcely reaching hind margin of middle 

 coxae. Mesoscutum broadly exposed. Scutellum minutely transversely 

 rugose. Female more robust than male. Costal margins distinctly 

 curved, elytra much broader just in front of cuneus than at base. Length, 

 3.3—3.5 mm. 



Sun Lake, III., Aug. 9 (///. Nat. Hist. Surv. Coll.). A species of 

 the Transition Life Zone, ranging from Ontario and New Eng- 

 land west to Illinois and Minnesota. Host plants, the sweet 

 fern, Comptonia peregrina (L.), and sweet gale, Myrica gale L. 



1064 ( — ). Plagiognathus chrysanthemi (Wolff), 1804, 151. 



Elongate, subparallel, male, more oval, female. Greenish-yellow to 

 grayish-green, clothed with prominent inclined blackish hairs, pronotum 

 usually a clearer green; membrane pale fuscous, iridescent, a white 

 triangular area near apex of cuneus and a small subquadrate black spot 

 near apex of small cell; legs greenish-yellow, front face of femora with 



