766 FAMILY XXIX. — MIRID,£. 



788b ( — ). Lygus pratensis rubidus Knight, 1917, 565. 



General color as in key; joints 1 and 2 of antennae red, apex of 2 

 and all of 3 and 4 fuscous; cuneus margined with red, pale at middle; 

 tibiae pale reddish-yellow, spines black. Length, 5.5 mm. 



Kawishiwi River, Minn., Aug. 28 {Minn. Univ. Coll.). Re- 

 corded elsewhere only from Maine, New Hampshire and Mas- 

 sachusetts. The variety rubrosignatus, as distinguished in key, 

 is known only from Massachusetts. 



789 (— ). Lygus vanduzeei Knight, 1917, 565. 



Elongate-oval, large and robust for the genus. Greenish-yellow to 

 reddish-brown; head usually unicolorous, sometimes with red or brown 

 lines; pronotum marked with black as in key, sometimes with two dots 

 behind each callus and rarely with dark stripes on disk; scutellum with 

 tip and an oblique spot each side of basal half yellow, sometimes wholly 

 pale yellow; corium often with a fuscous bar across apical third, the 

 anal ridges yellowish; embolium in great part pale, its entire outer edge 

 blackish; claval vein and cuneus yellowish, the latter with extreme base 

 and tip reddish-brown; membrane pale translucent with a slight dusky 

 tinge, sometimes largely fuscous-brown, veins yellowish or reddish; legs 

 greenish-yellow, more or less tinged or dotted with brownish or reddish, 

 the basal halves of hind femora reddish or blackish; under surface green- 

 ish-yellow, the ventrals more or less clouded with reddish or brownish, 

 and usually with a stripe of similar hue along their sides. Joint 1 of 

 antennae reddish-brown to piceous, one-half the length of pronotum; 2 

 bright reddish-brown, the apical third piceous, four-fifths as long as 

 basal width of pronotum; 3 and 4 dark brown to fuscous, united slightly 

 longer than 2. Pronotum, except calli, coarsely, sparsely and irregularly 

 punctate. Scutellum transversely rugose. Elytra rather coarsely and 

 closely punctate. Length, 6.5 — 7.5 mm. 



Kenosha, Wis. (Gerhard). Linville Falls, Swannanoa and 

 Craggy Mts., N. Car., June to September (Brimley). Oliverea, 

 N. Y., Sept. 10 (Davis) . The known range is northern, extend- 

 ing from Nova Scotia and New England west to North Dakota 

 and southwest to the mountains of North Carolina. Knight 

 says that in New York it breeds on the Canada goldenrod, 

 Solidago canadensis L., the adults hibernating and appearing on 

 the tender goldenrod plants during May. "The eggs are doubt- 

 less stuck in the tender stems, where the nymphs appear and 

 feed during July. Most of the adults mature by the middle of 

 August and continue to feed on the host plant until the cool 

 September nights cause them to seek hibernation quarters." 

 A slightly smaller form (6.6 mm.), bright ruby-red in color, 

 the pronotum and antennae marked with blackish as in typical 

 vanduzeei, was named var. rubroclarus by Knight (1917, 567). 



