PX pre 
Dr. Harrison G. Dyar's revision of the systematic portion of 
"The Mosquitoes of North and Central America and the West Indies" has just 
appeared as Publication No. 387 of the Carnegie Institution of Washington, 
under the title, "The Mosquitoes of the Americas." It supplements the 
Howard, Dyar and Knab monograph, which has long been out of print, and 
will be of great importance to medical entomologists and others interested 
in mosquito problems. The classification has been thoroughly revised and 
brought up to date, and many species discovered since the publication of 
the original monograph have been described and illustrated in this volume. 
Dr. Frank J. Psota, of Chicago, visited the Division of Taxonomy 
for several days, beginning May 12, to study material of the genus 
Moneilema in the collections of Coleoptera. Dr. Psota is a surgeon by pro- 
fession, but owns what is probably the largest private collection of 
beetles in this country. While here he arranged for the ultimate placing 
of his collection in the U. S. National Museum. 
Dr. Edwyn P. Reed, of Valparaiso, Chile, spent May 27 and 28 in 
the Museum discussing buprestids, scarabaeids, and lampyrids with the 
various coleopterists. 
Dr. D. M. DeLong, of Ohio State College, spent the evenings of 
May 17, 18, and 19 in the Museum, working on types of the jassid genus 
Deltocephalus in connection with a revision which he is preparing. 
C. A. Thomas, of the Pennsylvania State College, spent May 1 and 
2 working on elaterid larvae with Dr. Boving. 
INSECTS AFFECTING MAN AND ANIMALS 
F. C. Bishopp, Senior Entomologist, in Charge 
On May 16 F. C. Bishopp and Prof. L. I. Case, of Blacksburg, Va., 
visited Burkes Garden, Va., on business relating to the cooperative work 
under way in that locality for the control of the cattle grub. 
In the week of May 14 D. C. Parman made a trip to Laredo, Browns-— 
ville, and other points in southern Texas, to determine the status there 
of the screw worm and other pests of livestock. 
On May 31 F. C. Bishopp and Dr. W. V. King, in charge of the 
field laboratory at Mound, La., for the study of malaria mosquitoes, con- 
ferred with Dr. B. L. Arms, State health officer of Florida, and E. L. 
Filby, State sanitary engineer, regarding plans for a cooperative survey 
of the troublesome mosquitoes of the interior of Florida. 
