578 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY. 



[Bull. 



L. plagiatus Uhler. 



Lygus plagiatus Uhler, Hemip. Colo., 35, 1895. 

 Cornell Univ. Agr. Expt. Sta., Bull. 391, 576, 1917. 



Male: Length 5.3 mm., width 2.8 mm.; more robust than 

 pratensis, black with greenish yellow, mottled ; head and anterior 

 part of pronotum yellowish or olive green, hemelytra irregularly 

 mottled with black and paler spots ; differs from pratensis in the 

 antennal segments and in the form of the right genital clasper. 



Female: Slightly more robust than the male and usually paler 

 in color ; second antennal segment shorter ; pronotum more yellow- 

 ish, black rays behind the calli frequently not reaching the black 

 basal margin; venter greenish yellow, blackish on the vagina 

 exterior, dark specimens with the black more extended. 



Breeds on great ragweed {Ambrosia trifida). 



Massachusetts, Rhode Island, Long Island, N. Y. 

 L. apicalis Fieber. 



Lygus apicalis Fieber, Eur. Hemip., 275, 1861. 



Cornell Univ. Agr. Expt. Sta., Bull. 391, 601, 1917. 



Male: Length 4.5-5 mm., width 2 mm. ; oblong; width of head 

 1.12 mm., vertex .29 mm.; greenish, dark green, or yellowish 

 green, the membrane, and in some cases the corium, marked with 

 fuscous ; head broad, the eyes unusually large in the male ; genital 

 claspers very distinctive of the species (fig. 103). 



apicans 



Fig. 103. Lygus apicalis Fieber, 

 — male genital claspers, (a) left 

 clasper, lateral aspect, (b) left 

 clasper, dorsal aspect, (c) right 

 clasper, internal lateral aspect. 

 Greatly enlarged. Drawing by Dr. 

 H. H. Knight. 



pabulinus 



Fig. 104. Lygus pabulinus Lin- 

 naeus, — male genital claspers, (a) 

 left clasper, lateral aspect, (b) left 

 clasper, dorsal aspect, (c) right 

 clasper, internal lateral aspect. 

 Greatly enlarged. Drawing by Dr. 

 H. H. Knight. 



Female: Length 4.6 mm., width 2.05 mm.; width of head 

 1.05mm., vertex .37mm.; uniformly green or greenish yellow; 

 eyes dark brown ; tips of tarsi and apex of rostrum blackish. 



Breeds on Erigeron canadensis. 



Massachusetts, Maine. 



