5i8 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY. 



[Bull. 



scutellum somewhat more broadly black ; head and antennae black, 

 vertex with pale spot each side bordering the eye. Genital claspers 

 (fig. 88) very distinctive, in fact indicating that this species should 

 nofbe placed in this section of the genus Orthotylus. 



Food plant: American aspen (Populus tremuloides). 



Originally described from a single female specimen collected on 

 Mt. Washington, N. H., by Mrs. A. T. Slosson. In Minnesota, 

 the writer has collected nymphs and adults on aspen (Populus 

 tremuloides) but only on certain trees found along the shore of 

 Lake Superior, just north of Two Harbors. Other trees of the 

 same species, standing only a few feet back from the edge of the 

 high bank which forms the shore line, did not produce specimens 

 of candidatus. 



Mt. Washington, N. H., Minnesota. 



submarc/inalus 



Fig. 89. Orthotylus submargi- 

 natus Say, — male genital claspers, 

 (a) left clasper, lateral aspect, (c) 

 right clasper, lateral aspect. Greatly 

 enlarged. Drawing by Dr. H. H. 

 Knight. 



' ornatus 



Fig. 90. Orthotylus ornatus 

 Van Duzee, — male genital claspers, 

 (a) left clasper, lateral aspect, (c) 

 right clasper, lateral aspect. 

 Greatly enlarged. Drawing by Dr. 

 H. H. Knight. 



O. submarginatus (Say). 



Capsus submarginatus Say, Heter. N. Harm., 23, 1832: Compl. Writ, i, 

 344, 1859- 



Proc. Cal. Acad. Sci., ser. 4, vi, 123, 1916. 



Male: Length 4.6 mm., width 1.33 mm.; dorsum pale salmon 

 yellow, antennae, front of head, lateral margins of pronotal disk, 

 scutellum, rather broadly each side of commissure, embolium and 

 invading corium apically, apex of cuneus, and membrane, blackish 

 or black ; rostrum except apex, and legs chiefly, pale ; hind femora 

 dusky, the tibiae more nearly black. 



Female: Length 4.8 mm., width 1.44 mm.; very similar to the 

 male but more broadly salmon yellow above ; venter white beneath, 

 the dorso-lateral margin black ; ostiolar peritreme fuscous, epimera 

 and sternum beneath blackish. 



Breeds on Robinia pseudacacia. 



Stratford, 9 July, 1920 (B. H. W.). 



