27.2 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 petra gigas found also in the 
forest openings. The goldenrod gall-forming fly (Straussia longipennis) 
(Fig. 274) with its beautifully marked wings is common. Professor 
276 
Fic. 274.—The goldenrod gall-fly (Straussi longipennis); much enlarged (from 
Williston after Kellogg). 
Fic. 275.—One of the crane-flies (Helobia hybrida); enlarged (from Williston after 
Fic. 276.—The tree-cricket (Oecanthus 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. 
