DIT I SZEOTS, 
i DEPARTMENT Ce fa cag 
Contribution from the Bureau of Entomology, L. O. Howard, Chief. 
December 31, 1914. 
THE CHALCIS-FLY IN ALFALFA SEED. 
By THEeopvore D. URBAENS. 
Entomological Assistant, Cereal and Forage Insect Investigations. 
INTRODUCTION. 
The clover-seed chalcis-fly | (fig. 1), which is generally termed the 
alfalfa-seed chalcis-fly by alfalfa-seed growers, has been increasing 
Fie. 1.—The alfalfa-seed, or clover-seed, chalcis-fly: a, Adult; b,larva;c, pupa. Muchenlarged. (Original.) 
so rapidly that its destructive work is now causing a large annual 
loss, and in some sections even threatening the production of alfalfa 
seed. 
1 Scientific name, Bruchophagus funebris How. 
Nore.—This bulletin furnishes a general knowledge of the chalcis-fly, an insect injurious to alfalfa seed, 
and contains several practical methods for its control. 
67214°—Bull. 636—14 
