PSYCHE 
A JOURNAL OF ENTOMOLOGY 
Established in 1874 
VOL. XXXVI JUNE, 1929 No. 2 
TABLE OF CONTENTS 
A New Pseudomasaris from California, with some Considerations on the 
Masarid Wasps (Hymenoptera) . Jos. Bequaert 61 
Two Neotropical Ants Established in the United States. W . M. Wheeler.... 89 
Note on Gesomyrmex. W. M. Wheeler 91 
A Flight of Pieris monuste. C. W. Johnson 92 
A Species of Megachile from Bermuda. T. B. Mitchell 93 
The Ant Genus Rhopalomastix. W. M. Wheeler 95 
A Note on the Asparagus Beetle, Crioceris asparagi Linn. M. F. Crowell.... 101 
A Camponotus Mermithergate from Argentina. W. M. Wheeler 102 
Diptera Destroying Snails. C. W. Johnson 106 
Common Names and Taxonomy. J. A. Hyslop 107 
Geotrupes horni Blanchard. C. A. Frost Ill 
Phenology of Oligolectic Bees and Favorite Flowers. C. Robertson 112 
Thelytoky or Arrhenotoky in Sclerodermus immigrans. J . C. Bridwell 119 
Critical Data upon Thelytoky in Scleroderma immigrans. C. E. Keeler 121 
A New Species of Blepharocera from Massachusetts (Diptera). O. A. 
Johannsen 123 
Xenillus clypeator Robineau-Desvoidy and its Identity. A. P. Jacot 125 
Diptera of Labrador. C. W. Johnson 129 
A Beautiful Crane-fly from Siam. T. D. A. Cockerell. 147 
Book Notices. C. T. Brues 148 
New Forms of Odontoponera transversa. Wm. S. Creighton........ 150 
