570 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Holotype: Male, 24 June, 1915, Batavia, N. Y. (H. H. Knight) ; author's 

 collection. Allotype: same data as the type. Paratypes : Males and 

 females (90), taken with the types on Viburnum Lentago. New York — 

 Males (2), females (2), 12 July, 1914; females (3), 27 July, 1915, Batavia; 

 male and female, 6 July, 1915, Wyoming County (H. H Knight). 



Food plant : Nannyberry (Viburnum Lentago) ; breeds especially 

 on young growth. 



Massachusetts, New York 

 L. rosacea Reuter. 



Lygidea rubecula var. rosacea Reuter, Acta Soc. Sci. Fenn., xxxvi. No. 2, 

 46, 1909. 



Male: Length 6.7 mm., width 2 mm. Head: Width 1.26mm., 

 vertex .63 mm. Rostrum, length 1.85 mm., reaching to middle of 

 intermediate coxae. Antennae : Segment i, length .60 mm. ; ii, 

 2.1 mm. ; iii, .88 mm. ; iv, .57 mm. 



Hemelytra densely clothed with closely appressed, golden yellow 

 pubescence; clavus and apical half of corium fuscous to black, 

 basal half of corium and embolium yellowish translucent. Cuneus 

 red, yellowish at base but extending to middle along outer margin. 



Female: Length 6.5mm., width 2.6mm. Head: Width 

 1.34 mm., vertex .68 mm. Rostrum, length 1.97 mm., reaching to 

 middle of intermediate coxae. Antennae: Segment i, length 

 .60 mm. ; ii, i .9 mm. ; iii, .80 mm. ; iv, .60 mm. Dorsum chiefly 

 red although in dark forms the clavus and apical half of corium 

 becoming infuscated. 



In Minnesota the writer has found this species to breed abun- 

 dantly on the sand bar willow (Salix longifolia), but only on this 

 species of willow. Typical specimens are also at hand from Illi- 

 nois, the type locality. Lygidea rubecula (Uhler), described from 

 Colorado, was collected on willow at Steamboat Springs ; this 

 species may be distinguished from rosacea by the longer rostrum. 



Illinois, Minnesota. 

 L. obscura Reuter. 



Acta Soc. Sci. Fenn., xxxvi, No. 2, 46, 1909, 



Male: Length 6 mm., width 2.2 mm.; smaller and darker 

 colored than rubecula; dark fuscous to black, genae, apices of 

 juga, median line on frons, median line and slender basal margin 

 of pronotum, lateral margins of scutellum and median line except 

 basally, sternum and lower half of venter except on genital seg- 

 ment, coxae, basal half of femora, tibiae except base and apex, pale 

 to yellowish ; cuneus pale translucent, inner half reddish, apex dark 

 red to blackish. 



Female: Length 6 mm., width 2.4 mm. ; very similar to the male 

 but with less blackish; yellowish to brownish and darkened with 

 fuscous ; head yellowish, base of juga, broad mark on frons each 

 side of median line, black ; pronotum brownish, broadly at lateral 

 margin and a ray behind callus at each side of pale median line, 



