52 



sitic species find their hosts, as Pierce ('04) has shown to be the case 

 in the rhipiphorid genus Myodites. Rhipiphorus is probably parasitic. 



6. Supplementary Collections from Station I 



In addition to the specimens given in the preceding Hsts for Station 

 I there are others, general collections from this area, which should be 

 listed for this prairie. For details concerning each species of the fol- 

 lowing consult the annotated list. 



Garden Spider 



Ambush Spider 



Chigger 



Dorsal-striped Grasshopper 



Coreid bug 



Ambush Bug 



Ladybird 



Leaf-beetle 



Four-eyed Milkweed Beetle 



Old-fashioned Potato Beetle 



Margined Blister-beetle 



Black Blister-beetle 



Snout-beetle 



Snout-beetle 



Giant Bee-fly 



American Syrphid 



Tachinid fly 



Bumblebee 



False Bumblebee 



Eucerid bee 



Short Leaf-cutting Bee 



Halictid bee 



Halictid bee 



Stizid wasp 



Rusty Digger-wasp 



Harris Digger-wasp 



Digger-wasp 



Solitary wasp 



Argiope aurantia 26 



Misumena aleatoria 31 



Trombid'ium sp. — 



Xiphidium strictiim 35 



Harmostes refiexidus 2y 



Phyinata fasciata 24, 26, 43 



Hippodaniia parenthesis Hankinson 



Trirhabda tomentosa Hankinson 



Tetraopes 4-ophthalmiis 35 



Bpicauta vittata Hankinson 



Bpicauta marginata Hankinson 



Bpicauta pennsylvanica 26, 152 



Centrinus penicelliis 41 



Ccntrinus scntcllnm-alhum Hankinson 



Bxoprosopa fasciata 24, 31 



Syrphiis americanus 1 1 



Trichopoda ruficaiida 38 



Bombits separatiis 22 



Psithyrus variabilis 22 



Melissodes obliqua 24, 48 



Megachile brevis Hankinson 



Halictus fasciatus 26 



Halictiis virescens 23 



Stizus brevipennis 35, Hankinson 



Chlorion ichneumonenm 6 



Chlorion harrisi 24 



Ammophila nigricans 24 



Odyneriis vagus 46 



IL Prairie Area near Loxa, Illinois, Station II 



This station includes patches of prairie along the Cleveland, Cin- 

 cinnati. Chicago and St. Louis (Big Four) railroad right-of-way be- 

 tween Charleston and Mattoon, 111., and about one mile west of 



