48 



4- Cone-flower and Rosin-zi'ecd Colony, Station I, e 



This station was continuous with and just north of the swamp 

 milkweed area (Station l,d) just described. The surface of the 

 ground sloped gently upward toward the north, but none of it was free 

 from crawfish holes, and the ground-w^ater level was not far below. 

 The soil is very dark in color. 



The general appearance of this habitat is shown in Plate V. The 

 large-leaved plants are SilpJiium terebinfliinaccum, and the heads of 

 the numerous cone-flowers (Lepachys pinnata) show as black points in 

 the picture. The cone-flower was the dominant plant at this time. 

 There were a few scattered plants of Silphium intcgrifoliiim and of 

 wild lettuce (La'ctiica canadensis). At the time the collecting was done 

 in this area Silphium was not in blossom, and all the flower-collecting 

 was from Lepachys. 



The collections of animals taken here (Nos. 8, 40, and 158) are 

 as follows : 



Crawfish 



Garden Spider 



Sordid Grasshopper 



Differential Grasshopper 



Red-legged Grasshopper 



Texan Katydid 



Dorsal-striped Grasshopper 



Black-horned ^leadow Cricket 



Membracid bug 



Jassid 



Lygseid 



Ambush Bug 



Chrysomelid beetle 



Southern Corn Root-worm 



Beetle 

 Robber-fly 

 Trypetid fly 

 Eucerid bee 

 Eucerid bee 

 Xomadid bee 

 Social wasp 



Canibarus sp. (Burrows observed) 



Argiope aurantia 40 



Bncoptolophus sordidus 158 



Melanopliis differentialis 40 



Melanoplus fenwr-ruhrum 40 



Scudderia texensis 40 



Xiphidiitni strictum 40 



CEcanthus nigricornis 40 



Canipylcnchia curvata 40 



Platymetopius frontalis 40 



Ligyrocoris sylvestris 40 



Phymata fascia ta 40 



Xodonota convexa 40 



Diabrotica 12-punctata 40 



A si li dee — 



Euaresta ceqnalis 40 



Melissodes biniaculata 8 



McUssodes obliqua 8 



Epeolus concolor 8 



Polistes sp. — 



Collection No. 40 was made by sweeping the vegetation with an in- 

 sect net. No. 8 is a collection made from the flowers of Lepachys pin- 

 nata. The nest of Polistes was across the railway track from this 

 station. The abundance of Melissodes obliqua and of the pretty 



