PSYCHE 
A JOURNAL OF ENTOMOLOGY 
Established in 1874 
VOL. XXX APRIL, 1923 NO. 2 
CONTENTS 
Observations on the Feeding Habits of Robber Flies. Part I. Procta- 
canthus rufus Will, and P. hrevipennis Wied. S. M. Bromley^ 41 
Notes on the EHpterous Family Cyrtidae. F. R. Cole 46 
New Species of North American Cyrtidae. C. W. Johnson 49 
The Zoological Record 51 
North American Dixidae. 0. A. Johannsen 52 
Two New Species of Phoridae from Baltic Amber. C. T. Brues. 59 
New Species of North American Dolichopodidae. M. C. Van Duzee.^ 63 
Notes on Sinea diadema (Fabr.); Hemiptera. G. W. Barber, 74 
New Saw-flies, Hymenoptera, from Oregon. A. D. MacGillivray. 77 
Two New Mississippi Ants of the Subgenus Colobopsis. M. R. Smith. 82 
The Varieties of Monecphora bicincta from the Point of View of a Cytologist. 
A. M. Boring 89 
Proceedings of the Cambridge Entomological Club 93 
