32 
PARASITES OF GIPSY AND BROWN-TAIL MOTHS. 
assistance of Prof. H. A. Morgan at that place. Berlese's sending 
arrived in good condition, and the parasites issued at Baton Rouge 
and immediately bega \i to attack the native species. The importa- 
tion was successful for a time, but the introduced species was finally 
reduced to an insignificant number, presumably through the attacks 
of hyperparasites. 
In the meantime Prof. CP. Lounsbury, an American occupying 
the position of entomologist of the department of agriculture at the 
Cape of Good Hope, on his arrival at the Cape in 1395 and searching 
for the usual cosmopolitan scale insects on fruit trees, failed to 
find the black scale. He com- 
mented on this fact in one of 
his first-published papers, and 
alluded to the severity of the 
scale as a pest in California. 
Shortly afterwards he found 
the species, and sent the senior 
avthor specimens for identifi- 
cation in 1895, together with 
parasites which he had reared 
from it. Subsequent cor- 
respondence showed other 
species, and eventually Scutel- 
lista cyanea was forwarded. 
Writing to Mr. Lounsbury 
September 14, 1896, the chief 
of the bureau made the follow- 
ing suggestion: "I think para- 
sitized black scales could be 
sent to California to advan- 
tage. Mr. Alexander Craw 
would be the proper person to 
to whom to send them." 
Mr. Lounsbury made further 
studies, and commented in his 1898 report on the existence of 
parasites. When this report met the eye of Mr. E. M. Ehrhorn, of 
the Stale horticultural commission, Mr. Ehrhorn wrote Mr. Louns- 
bury, under date of December 22, 1899, asking him to send a colony 
of the parasite. Mr. Lounsbury had in the meantime, in a letter 
to the senior author, suggested that in order to gain authority to 
spend time over the matter and incur necessary expense it would be 
desirable for the Secretary of Agriculture of the United States to 
make a formal requesl for these parasites to the secretary of agri- 
culture of ( ape ( olouy. This was done, and in May, 1900, Lounsbury 
Fig. G.—ScutcUista cyanea, an imported parasite of the 
black scale: Dorsal and lateral views of adult, with 
enlarged details. Greatly enlarged. (From Howard.) 
