PSYCHE 
A JOURNAL OF ENTOMOLOGY 
Established in 1874 
VOL. XXX OCTOBER 1923 No. 5 
CONTENTS 
The Genus Lasiopogon (Diptera, Asilidae). 
A.L. Melander 135 
Observations on the So-called Trumpeter in Bumblebee Colonies. 
O.E.Plath 146 
A Note on a Recently Introduced Leafhopper. 
G.H. Barber 155 
Flower Visits of Insects. 
Charles Robertson 158 
A New Genus of Mayflies from the Miocene of Florissant, Colorado. 
T. D. A. Cockerell 170 
Utah Varieties of a Rose Root Gall Wasp (Hymenoptera). 
A.R.Hubter 173 
