272 



THICKET COMMUNITIES 



leaf -bug (Poecilocapsus lineatus) (Fig. 268). The long-legged fly 

 (Fig. 269), the large robber- fly (Fig. 270), the common syrphus fly 

 (Eristalis tenax) (Fig. 271), a leptid fly (Fig. 272), and Milesia virginien- 

 sis (Fig. 273) visit the flowers in numbers. The garden spider occurs; 

 also high in the shrubs is the brilliant Epeira gigas found also in the 

 forest openings. The goldenrod gall-forming fly (Straussia longipennis] 

 (Fig. 274) with its beautifully marked wings is common. Professor 



275 



276 



FIG. 274. The goldenrod gall-fly (Straussi longipennis); much enlarged (from 

 Williston after Kellogg). 



FIG. 275. One of the crane-flies (Helobia hybrida) ; enlarged (from Williston after 

 Lugger). 



FIG. 276. The tree-cricket (Oecanthns fasciatus)', twice natural size (after 

 Lugger). 



Williston states that the crane-fly (Helobria hybrida) (190) (Fig. 275) 

 occurs. Several leaf -bugs occur; the dusky leaf -bug is common. 



Several species of Orthoptera are characteristic. Of the tree-crickets 

 several occur among which are Oecanthus nivens DeG. and angustipennis 

 Fitch and fasciatus (Fig. 276). Two or three katydids occur; the 

 round- winged (Amblycorypha rotundifolia Scud.) is most characteristic. 



