584 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY. 



[Bull. 



L. (Neolygus) atritylus Knight. 



Cornell Univ. Agr. Expt Sta., Bull. 391, 606, 1917. 



Male: Length 5.2 mm., width 2.2 mm. ; closely related to invitus 

 and fagi, the darker forms much resembling a pale or yellowish 

 form of invitus; greenish yellow to pale brownish, corium slightly 

 darkened apically with fuscous, cuneus uniformly pale translucent ; 

 hind femora with two subapical bands, sides of body, and more or 

 less on head, reddish ; easily distinguished by the black tylus and 

 genital claspers (fig. 108). 



Female: Length 5.4 mm., width 2.36 mm.; very similar to the 

 male in coloration except that the corium is rarely, if ever, 

 darkened with fuscous. 



Breeds on Salix. 



Allotype: Male, 13 July, 1920, Cranberry Lake, N. Y. (C. J. Drake), 

 taken on Salix ; author's collection. 



New Hampshire, New York, Vermont. 

 L. (Neolygus) confusus Knight. 



Cornell Univ. Agr. Expt. Sta., Bull. 391, 606, 1917. 



Male: Length 5.3 mm., width 2.05 mm.; green, differs from 

 alni in lacking the strong bronze colors, in having a fuscous spot 

 at tip of corium, and in different membrane markings ; fuscous 

 spots at base of tibial spines more distinct than in alni, and in addi- 



confusud 



Fig. 109. Lygus confusus 

 Knight, — ^male genital claspers, 



(a) left clasper, lateral aspect, 



(b) left clasper, dorsal aspect, 



(c) right clasper, ventral aspect. 

 Greatly enlarged. Drawing by 

 Dr. H. H. Knight. 



Fig. I id. Lygus alni Knight, — 

 male genital claspers, (a) left 

 clasper, lateral aspect, (b) left 

 clasper, dorsal aspect, (c) right 

 clasper, ventral aspect. Greatly 

 enlarged. Drawing by Dr. H. H. 

 Knight. 



tion there are small fuscous spots on lower side of posterior 

 femora; genital claspers distinctive of the species (fig. 109). 



Female: Length 4.3 mm., width 2.2 mm. ; very similar to the 

 male but more robust, coloration slightly paler. 



Allotype: Female, 30 July, 1919, Peaks Island, Me. (G. A. Moore); 

 author's collection. 



Maine, New Hampshire, New York. 

 L. (Neolygus) alni Knight. 



Cornell Univ. Agr. Expt. Sta., Bull. 391, 607, 1917. 



