

























eee 
sr 
Sa 3 
ys 
ir. Boyd L. Boyden, Scientific Assistant, who was formerly em- 
@t Whittier, Cal., where he was associated with Messrs. R. 8S. 
id John H. Graf, recently cooperating with the latter in work 
Orms affecting sugar-beet and other crops, will take head- 
at Oxnard, Cal., to continue investigations on sugar-beet 
in insects. 
*. §. M. Wadley, a student of the Kansas State Agricultural Col- 
ais assigned as temporary field assistant to cooperate with Mr. 
iiliken at Garden City, Kans., in work on truck-crop insects, 
mially on insects injurious to sugar-beets. : 
HINTS ON MOUNTING COLEOPTERA. 
Assistants stationed in the field send from time to time injuri- 
lé0ptera which are very badly mounted. The general rule is to 
erything @bove # inch in length, especially stout beetles. More 
r beetles, such as Hlateridae, measuring this length will be pre- 
“better by mounting on card points. Cardboard points are prefer- 
sed for all Coccinellidae with the exception of sbout two species - 
tis ocellata and HEpilachna borealis. The same is true of the Halti- 
ny practically all of which should be mounted on card points with 
mception of one species, Blepharida rhois. In other Chrysomelidae 
same rule should be follcewed. The Carabidae or ground-beetles shouid 
mted on points if less than 3 inch in length. Fine pins should 
a, but not the smallest. In mounting on cards it is preferable 
€ the head a little higher than the rest of the body, rather 
he reverse. | 
SOUTHERN FIELD CROP INSECT INVESTIGATIONS. 
W. D. Hunter, in charge. 
Mr. R. H. Hutchison has returned to Washington from New Orleans. 
fail be engaged on experiments with the house fiy during the sea- 
“Mr. A. W. J. Pomeroy will be associated with him in this inves- 
ation. ‘ 
7, B. Holloway will be furloughed at his own request to allow him 
nd several months in Europe during the summer, He will visit 
France and Germany. G. N. Walcott of the Porto Rico Board of 
Paculture will accompany Mr. Holloway. 
On May 15 @ hearing was held at the Department to discuss the 
Sibility of the elimination of the danger of introduction of the 
011 worm in cotton seed in bales of lint. This meeting was 
ed by many members of Congress and representatives of cotton 
The Horticultural Board has not reached a decision. 
etters received recently from W. F. Fiske show rapid progress 
study of the bionomics of the tsetse flies. He has spent five 
in making examinations on the shores of Lake Victoria-Nyanza, 

