PREVIOUS WORK WITH INSECT PARASITES. 45 
kindness of the officers of the Royal Italian Line steamship Duca di 
Genova, was enabled to suspend the box by a cord from a crossbeam in 
the ordinary cold room of the steamer. After an eleven days’ passage, 
the box was opened in Prof. Silvestri’s laboratory in Portici, and prac- 
tically every coccinellid was found to be alive and in apparently good 
condition. 
Efforts have been made by the Bureau of Entomology, in coopera- 
tion with the Pasteur Institute in Paris, to introduce a large bembecid 
“wasp (Monedula carolina Fab.) from New Orleans into Algeria to prey 
upon the tabanid flies concerned in the carriage of a trypanosome 
disease of dromedaries. The wasps were sent in their cocoons in re- 
frigerating baskets from New Orleans by direct steamer to Havre and 
from New York by direct steamer to Havre. There they were met by 
agents of the Pasteur Institute, carried to Marseilles by rail and thence 
by boat to Algeria, and were planted under conditions as closely as 
possible resembling those under which they were found in Louisiana, 
care being taken to simulate not only the character of the soil but the 
exposure to light, the prevailing wind directions, and the moisture 
conditions. Adults issued, but the species has not since been re- 
covered, although it is quite possibly established. 
In the same way an attempt was made to introduce the common 
bumblebee Bombus pennsylvanicus De Geer of the United States into 
the Philippine Islands for the purpose of fertilizing red clover. These 
were sent in refrigerating baskets, carried by hand by Filipino stu- 
dents returning from the United States to the Philippines, and for the 
most part in the pupal stage. These were properly planted upon 
arrival and reared, and a few specimens have been recovered. 
In the summer of 1910 Dr. L. P. De Bussy, biologist of the Tobacco 
Planters’ Association of Deli, Sumatra, visited the United States for 
the purpose of investigating damage to the tobacco crop by insects 
and disease and to make an effort to import into Sumatra the parasites 
of the destructive tobacco worm known as Heliothis obsoleta Fab. 
Already shipments of an egg parasite, Trichogramma pretiosa Riley, 
have been made to Sumatra via Amsterdam, but information as to 
the results of these preliminary shipments has not yet reached this 
country. 
Prof. C. H. T. Townsend, an assistant in the Bureau of Entomology, 
receiving a temporary appointment as entomologist to the Depart- 
ment of Agriculture of Peru, especially to study the injurious work 
done by the scale insect Hemichionaspis minor Mask. on cotton, has 
during the past year, with the assistance of the bureau, imported a 
number of shipments of Prospaltella berlesei from Washington into 
Peru. It is too early to announce results. 
In July, 1910, Mr. R. S. Woglum, an agent of the Bureau of Ento- 
mology, was sent abroad to find the original home of the white fly of 
