324 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 9 



of the bud moth, fruit worm, and other fruit pests. It replaces a former temporary 

 laboratory at Bridgetown, which is to be used as a substation wherever most needed. 

 The laboratories at Treesbank and Lethbridge are of the bungalow type, the former 

 being 12 by 16, and the latter, located on the Dominion substation farm, 23 by 20 

 feet. 



Dr. E. A. Back, of the Bureau of Entomology, has substantially completed his 

 work in Honolulu and will shortly report to Washington to complete the general 

 bulletin on the Mediterranean fruit fly. Mr. C. E. Pemberton will remain in Hono- 

 lulu in charge of the work, assisted by Mr. Willard, who is in direct charge of the 

 inspection and certification of export fruits in cooperation with the Federal Horti- 

 cultural Board of the United States Department of Agriculture. The future develop- 

 ment of the research work in the Hawaiian Islands in relation to the fruit fly will 

 be determined after Doctor Back returns to Washington. Doctor Back has recently 

 submitted to the home office a very interesting book of photographs illu.strating the 

 fruit-fly work and conditions in Hawaii. In this book are photographs of drawings 

 of four of the introduced parasites. Opms humilis is the one which has hitherto been 

 reported as being so efficient in its parasitism of larvae, particularly on coffee planta- 

 tions. Among the parasites figured, however, is a species, Diachasma fullawayi, 

 more recently established, which, within a single year, has so increased that in one 

 collection of coffee berries, 92 per cent of the larva; were found parasitized. Further 

 details relative to these and other parasites are given in papers already published by 

 Doctor Back. 



The work of the Bureau of Entomology on animal parasites is in direct charge of 

 Mr. F. C. Bishopp at Dallas, Texas. At that place Messrs. H. P. Wood and E. W. 

 Laake are located continuous^, and Mr. W. E. Dove is present during the winter 

 months. The work conducted follows a considerable number of lines, among which 

 may be mentioned the work on the biology and control of the various ticks, ox war- 

 bles, stable fly, horn fly, and pests of poultry, including lice, mites and fleas ; also on 

 the control of flies about slaughter and packing-houses. Temporary field laboratories 

 are estabfished in regions where losses are most severe. One of these substations is 

 located at Uvalde, in the semi-arid region of Texas. Mr. D. C. Parman, who is 

 located here, devotes the major part of his time to investigations of the so-called 

 screw worm, and to certain species of Tabanida; which are very abundant and also 

 concerned in the transmission of anthrax. Mr. J. D. Mitchell, with headquarters at 

 Victoria, Texas, devotes a portion of his time to work on insects affecting live stock. 

 Mr. W. E. Dove, during the past season, conducted investigations on the horse bots, 

 particularly Gastrophilns hcemorrJwidalis, at Aberdeen, S. D. Arrangements have 

 been made for the study of Tabanidse, which are important pests of Live stock in 

 parts of Nevada and CaUfornia, in cooperation with the experiment station of Nevada. 

 It is possible also that other work with horseflies will be taken up in the sw'ampy 

 area in southeastern Texas and southern Louisiana during the coming j'ear. It is 

 hoped that various agents of the Bureau will assist as far as possible in this work by 

 making notes on insects affecting animals when such occurrences come to their notice 

 in connection with their other work. Specimens of various animal pests will also 

 be gratefully received at the Dallas laboratory. 



Mailed April 20, 1916 



