PSYCHE 



k JOURNAL OF ENTOMOLOGY 



Established in 1874 



VOL. XXVII FEBRUARY, 1920 



NUMBER 1 



CONTENTS 



Notes on Forest Insects. IIL Two New Species of Pityophthorus from 



Colorado. M. W. Blackman 1 



Hymenoptera Collected near Boston, Mass., with Description of a Variety of 



Bombus affiriis. J. Bequaert G 



The First Stage Lars'a of Cuferehra americana Fal^r. (Diptera; Oestridie) 



G. F. Ferris 13 



A Revision of the Species of the Genus Loxocera, with a Description of a New 



Allied Genus and a New Species. C. W. Johnson 15 



Proceedings of the Cambridge Entomological Club 19 



Exchange Column 21 



