58 ANNUAL REPORTS 01 DEPARTMENT OF AGRICULTURE, 1 ■ 
and seedlings on 23,730 properties in Texas and in adjacent Miller 
County in Arkansas. Not a single case of citrus canker was detected. 
This fai orable outcome strengthens the hope thai citrus canker eradi- 
cation may now have been actually accomplished in Texas. 
INSECT IDENTIFICATION \M> CLASSIFICATION 
IMPORTANT AIDS TO CONTROL PROGRAMS 
raxonomists contributed to the over-all insect-control program by 
furnishing upwards of 50,000 Identifications to workers in the Bu- 
reau and m numerous other agencies, as well as to individuals. Impor- 
tant among such identifications in L949 were large numbers req 
in connection with projects for control of the oriental fruit fly in 
M .mi and of the white-fringed beetle in the southeastern part of 
the United States, with surveys to determine the occurrence of leaf- 
hopper and aphid vectors of diseases of peaches and potatoes, and to 
obtain information on insects of medical importance in Alas 
A noteworthy project in basic research essential to sound ii 
classification has been conducted in cooperation with the British Mu- 
seum during the lasl -J years. Ii comprised a thorough study of the 
enormous Meyrick collection of Lepidoptera, which includes numer- 
ous lands of minute moths that air of much ivdi ion lie importance. Tin' 
identity of most of these forms has long been obscure and could be 
determined only by restudy of the types and redefinit ion of all the spe- 
This research was performed by a specialist of tin- Bureau, sent 
tn London for the purpose, and the results will be published by the 
Brit ish Museum. 
Another large research project that has just been completed after 
intermittent work for more than in years is a classification <>f North 
American leafhoppers. The results of this study will be of great aid 
in ident ifying the numerous leafhoppers that are important rectors of 
plant diseases. 
IN-TRANSIT INSPECTION 
In the enforcement of Federal domestic plant quarantines, tra 
ectors were stationed during all or part of the year at L5 terminal 
points through which regulated commodities moved in heavy volume 
by freight, express, or parcel post. These inspectors examined about 
L,400,000 shipments and found L,343 of them to be moving contrary 
to tin* regulations of one or another of the quarantines regulatii [ 
!<• movement of plant and other host material. These violations 
involved seven <>f the eight Federal domestic quarantine 
INSPECTION SERVICE l\ DISTRICT OF COLUMBIA 
I pection in I ; D trict of Columbia from June I, 1048, to May 
31, 1949, covered 37,521 in bound shipments of plants. < H this num- 
■ re found to lack the required State certification, and 2 were 
poyed or returned to the sender because of pests <»n them. During 
the same period 1,027 lots of plants were certified for shipment from 
the 1 1 ii ' to ii States, the Canal Zone, Puerto Rico, and the Amer 
i. an Zone in [taly. 
