REMARKABLE HABITS OF A PREDACEOUS FLY. 117 



seemed to be that pumps of this character now on the market would 

 not mix the oil and water accurately. 



A paper was read, as follows: 



THE BEET LEAF-HOPPER. 



By E. I). Ball, Logan, Utah. 



[Withdrawn for publication elsewhere.] 



The following title was presented, and the paper will be published 



in the report of the Bureau of Science of the Philippine- : 



PROBLEMS IN ECONOMIC ENTOMOLOGY IN THE PHILIPPINES. 

 By C. S. Banks, Manila, Philippine Island*. 



The following papers were read by title and ordered printed in the 

 " Proceedings : " 



OCCURRENCE OF THE THROAT BOT IN CUBA. 



(Gastrophilus nasalis L.) 



By C. F. Baker, Santiago de las Vegas, Cuba. 



Although the horse bot (Gastrophilus equi Fab.) is commonly 

 known in Cuba. I can not find that nasalis has yet been reported. I 

 had had specimens of the latter from Texas. Kansas, and Wyoming. 

 Xow, it has been taken flying about the plow mules here on the 

 grounds of the Estacion Agronomica. 



This occurrence is especialy interesting, because with it may be 

 noted an apparent divergence in habit. Ordinarily it is said to annoy 

 animals by striking for the vicinity of the neck for the deposition of 

 its eggs. Here, as we have observed it. it flies almost entirely be- 

 neath the body. Whether this shows any definite indication of a 

 difference in the egg-laying habit remains to be determined. 



REMARKABLE HABITS OF AN IMPORTANT PREDACEOUS FLY. 



(Ceratopogon eriophorus Will.) 



I'.y C. P. Baker, Santiago de las Vegas, Cuba. 



A common Cuban fruit which occurs in gardens and patios is the 

 tree gooseberry, or grosella. a species of Phyllanthus. This tree is 

 commonly completely and rapidly defoliated by a most pernicious 

 pest —the larva of Melanchroia geometroides Walk. I had observed 

 this insect in passing as to its parasites, none of which appeared to 

 exercise the least check upon it. One day. in visiting a tree -warm- 

 ing with the larva 1 and almost defoliated, I discovered thai great 

 numbers of them were dead and dving, their blackened skins hanging 



