t 
- 7 = 
: A. B. Gahan recently received from A. P.. Dodd, of the Commonwealth 
Prickly Pear Board, Brisbane, Australia, representatives of fourteen spe- 
cies of Australian Scelionidae, this being the second lot of such material 
Which Mr. Dodd has sent in exchange for similar material from America. 
Several paratypes are included, and the whole makes a valuable addition to 
the collection, ; 

TRUCK-CROP INSECT INVESTIGATIONS 
dim alt Graf, Senior Entomologist, in Charge 
N. F. Howard, of the Mexican bean beetle laboratory at Columbus, Ohio, 
visited Washington on June 10, and the Bureau laboratories at Riverton, Nogedes 
and Philadelphia, Pa., on June 13. Leaving Columbus on June 21, he visited 
the substation at Birmingham, Ala., and again on June 29 he went to confer 
with Rodney Cecil at the branch station at Geneva, N. Y. 
C. H. Popenoe left Washington June 20 on a trip to points in south- 
western Michigan, to confer with various workers regarding the transmission 
of berry mosaics by insects; and returned June 28. On the way out Mr. Popenoe 
stopped at East Lansing, Mich., and conferred with Prof. C. W. Bennett, of 
thé Agricultural College, as to technical methods in the demonstration of 
mosaic symptoms in plants and in pathological treatment. In southwestern 
Michigan a large number of fields were visited and studied. These contained 
the streak or blue-stem disease, leaf-curl, and the yellow, mild, and red 
raspberry mosaics. Other berries were also studied in which chlorotic 
symptoms as yet unknown to belong to the mosaic group were manifest. 
Walter Carter, of Twin Falls,: Idaho, and R. E. Campbell, of Alhambra, 
Calif., attended the meetings of the Pacific Slope Branch of the American As- 
sociation of Economic Entomologists, held at Reno, Nev., June ee to 2o. . From 
Reno Mr. Carter went to Berkeley and other points in California to confer with 
State officials regarding investigations on the sugar-beet leafhopper. 
, A new substation for investigations of the sugar—beet leafhopper was 
opened at Corvallis, Oreg., June 10. OC. H, Griffith has been transferred 
there from the Twin Falls, Idaho, laboratory. 
Joe Milam, a former employee of the tobacco insects laboratory at 
Clarksville, Tenn., was reinstated June 6, and will assist A. C. Morgan at 
‘Clarksville. 
K. E. Gibson has been given a probationary appointment as Junior Ento- 
' mologist, effective June 15, and will be located at the Walla Walla, Wash., 
/ wireworm substation of the Toppenish, Wash., laboratory. 
| | ea. 
{ ; 
sects laboratory, are now conducting work on the tobacco crambus at Appomat- 
J. U. Gilmore and S. F. Grubbs, of the Clarksville, Tenn., tobacco in- 
tox, Va. 
