594 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY. 



[Bull. 



Male: Length 4.8 mm., width 2.17 mm.; yellowish brown, with 

 darker brown on the clavus and apex of corium ; resembling most 

 the female of tiliae, and both sexes of inconspicuus; differs from 

 those species by lacking the green, in having the pronotum evenly 

 shaded with yellowish brown, and in being more brownish than 

 fuscous on the hemelytra ; genital claspers very distinctive of the 

 species (fig. 128). 



Female: Length 5.1 mm., width 2.3 mm. ; slightly larger and 

 more robust than the male but very similar in coloration; most 

 likely to be confused with the females of tiliae and inconspicuus, 

 also resembling the pale forms of vihurni and geneseensis. Points 

 of difference are: inconspicuus is more greenish and the fuscous 

 marks on clavus and apex of corium are more in contrast; tiliae 

 is more green, particularly the pronotum, and the scutellum is 

 darkened with fuscous ; vihurni has nearly the whole corium 

 brownish, apex of embolium darkened, and the apical half of 

 antennae fuscous; geneseensis is very similar to vihurni except 

 that the antennae are not fuscous, but the embolium is darkened 

 to even a greater extent. 



Litchfield, 22 July, 1920 (P. G.). 



belfragif 



Fig. 127. Lygus helfragii 

 Renter, — 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. 



cmigen 



Fig. 128. Lygus clavigenitalis 

 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) hirticulus Van Duzee. 



Lygus tenellus Van Duzee, Buff. Soc. Nat. Sci., Bull, x, 484, 1912. 



Cornell Univ. Agr. Expt. Sta., Bull. 391, 633, 1917. 



Male: Length 4.8 mm., width 2.28 mm.; dark ferrugino- 

 testaceous, sometimes entirely dark fuscous or blackish excepting 

 the legs and antennae; genital claspers distinctive (fig. 129). 



