No. 34.] HEMIPTERA OF CONNECTICUT: MIRIDAE. 



583 



L. (Neolygus) fagi Knight. 



Cornell Univ. Agr. Expt. Sta., Bull. 391, 603, 1917. 



Male: Length 4.8 mm., width 1.94 mm.; not darker than the 

 female and both sexes look much like the female of hirticulus; 

 differs from hirticulus by being more fulvo-aeneous in coloration 

 and by the dark fuscous membrane ; genital claspers distinctive of 

 the species (fig. 106). 



Female: Slightly larger and more robust than the male; very 

 similar to the female of hirticulus, but usually distinguishable by 

 the infuscated membrane and in general by the more fulvo- 

 aeneous coloration. 



Breeds on Fa gits grandifolia and perhaps Betula lutea. 



Massachusetts, New Hampshire, New York, Vermont. 



Fig. 107. Lygus invitus Say, — 

 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. 



drift] I US ^ 



Fig. 108. Lygus atrit ylus 

 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. 



L. (Neolygus) invitus (Say). 



Capsus invitus Say, Heter. N. Harm., 24, 1832; Compl. Writ, i, 345, 

 1859. 



Cornell Univ. Agr. Expt. Sta., Bull. 391, pi. 604, 1917. 



Male: Length 5 mm., width 2 mm. ; dark greenish with fuscous 

 or blackish, sides of the body with a dark fuscous stripe extending 

 the full length of the body, including the whole genital segment; 

 scutellum with a pale median vitta on apical half ; disk of pro- 

 notum dark brownish or blackish but never with two distinct rays 

 as in communis; genital claspers distinctive of the species (fig. 

 107). 



Female: Length 5.1 mm., width 2.2 mm.; slightly more robust 

 than the male, very similar in coloration but in general lighter- 

 colored, the pale vitta on scutellum more extended. 



Breeds on Ulmus americana. 



Danbury, 15 June, 1909 (C. W. J.) ; New Haven, 25 June, 1920 

 (B. H. W.) ; South Meriden, 15 June (H. L. J.) ; Winnipauk, 16 June, 

 1909 (C. W. J.). 



