488 



Journal of Agricultural Research voi. xviii. No. 9 



distribution occurs as far north as York County, Me.; Merrimack 

 County, N.H.; as far west as Worcester County, Mass.; and as far south 

 as Plymouth County, Mass., and Providence County, R. I. It undoubt- 

 edly occurs in New England outside these limits, for the distribution 

 of C sycophanta extends beyond the above-named localities and into 

 Connecticut. It has been bred also from C. frigidum Kirby and C. 

 calidum Fab., which were collected within the above-named limits. 

 Since the two latter species occur as far south as Georgia and Texas 

 and as far west and north as Nebraska, North Dakota, and Canada, the 

 parasite is likely to be found in any part of this extensive territory. 



It was first thought when this species was bred from Calosoma syco- 

 phanta in 1912 and I9i4that it might be Viviania cinerea Fall, of Europe, 

 introduced from that continent with the beetles during the years 1905 

 to 1 910. The first shipment of beetles was received from the late Dr. G. 

 Leonardi, of Portici, Italy. Practically all later shipments were sent by 

 Miss Marie Ruhl, Zurich, Switzerland. These were shipped in tight boxes, 

 and when these were opened on this side the specimens and packing 

 material were examined for parasites. In most instances the dead 

 adults were inclosed in a jar containing earth in order to rear any possible 

 parasites. The table shows that 4,046 living specimens and 2,097 dead 

 specimens of C. sycophanta were received from Europe and no signs of 

 parasites were observed. It might be added that 348 adults received 

 between 1905 and 19 10, and pinned at that time, were later dissected 

 with negative results. 



The data at hand tend to point to the fact that the species was not 

 introduced from Europe but is native to New England, being first bred 

 by A. F. Burgess in 1897 from Calosoma calidum and later found more 

 abundantly in C. sycophanta. 



Table I. — Number of living and dead specimens of Calosoma sycophanta received froin 



Europe 



Dead. 



1905 



1906 



1907 



1908 



1909 



1910 



Total 



EQUIPMENT USED IN BREEDING EXPERIMENTS 



During 191 5, when the first extensive breeding experiments were 

 begun, the flies issuing from the parasitized beetles were inclosed in 

 small wooden, glass-covered trays 12 by 12 by 3X inches with a bottom 



