HIGH PRAIRIE 



2 93 



katydid (Scudderia texensis) are taken from the goidenrod. From the 

 goldenrod we also take the goidenrod beetle (Trirhabda tormentosa 

 va.r.canadensis) and the case-bearer (Pachybrachys). The lady-beetles 

 (Cycloneda, Hippodamia, MegUla, etc.) are common. The clover-leaf 

 beetle (Languria mozardi?) (Fig. 305) is also of common occurrence. 

 The snout-beetles are represented by the large, elongated Lixus (Fig. 

 306), the larvae of which feed in the stalks of rank weeds. 



FIG. 303. The lady-beetle (Megilla maculata DeG.) and its life history: a, larva; 

 b, pupa; c, adult (Chittenden, U.S. Dept. Agr.); enlarged as indicated. 



FIG. 304. Meadow grasshopper (Xiphidium strictum Scud.); twice natural size 

 (after Forbes). 



The onion-fly occurs in connection with the prairie onion. Eristalis 

 tenax is common on the flowers. Various flower-flies occur. Waiting 

 in the flowers for such animals as may come are the ambush-bugs (Phy- 

 mata erosa fasciata), and the crab spiders (Misumessus asperatus and 

 Runcina aleatoria). The jumping spiders (Phidippus podagrosus) are 

 also predatory (138). The orb-weavers (Epeira trivittata, Agriope 

 trifasciata) build webs into which many insects fall. 



