February', '16] HOWARD: PROSPALTELLA BERLESEI 179 



and the Territorial Board of Agriculture. All the possible require- 

 ments for successful work have thus been filled, namely the most 

 favorable climate (permitting continuous breeding throughout the 

 year), the most favorable conditions of cultivation, a small number 

 of crops, a restricted and simple fauna, a highly intelligent body 

 of men in control, with plenty of means, and an altogether admirable 

 force of scientifically trained employees. As the French would say, 

 Qtie vouliez vous encore? 



What we shall want later is a complete account of the whole work 

 from Mr. Giffard or Dr. Perkins or Mr. Muir or Mr. Swezey. The 

 work has been most notable and should have its written history 

 available to all. 



FURTHER NOTES ON PROSPALTELLA BERLESEI HOW. 



By L. O. Howard 



The little Aphelinine parasite known as Prospaltella herlesei has 

 become a creature of much international and practical importance, and 

 its name in various combinations, not only as a noun but as a verb as 

 well, has made its entrance into the Italian and Spanish languages, and 

 bids ultimately in these same combinations to enter the English lan- 

 guage. 



Originally found by Berlese in Florence, issuing from lilac t^igs 

 infested by Diaspis pentagona sent from Washington by Marlatt at 

 the writer's request in May, 1906, this parasite was sent back to the 

 writer in Washington, was found to be new, and was described by him 

 as Prospaltella herlesei in an article on the parasites of Diaspis pen- 

 tagona in Redia, Vol. Ill, part 2, and in the Entomological News for 

 October, 1906, pp. 292-293. Sendings of parasitized scales from 

 Washington to Florence were continued during 1906, 1907 and 1908. 



Berlese's continuous success in rearing and colonizing this parasite 

 on mulberry trees affected by the scale has been reported from time 

 to time, notably in an article in the Journal of Economic Entomol- 

 ogy for August, 1912, pp. 325-3*28, translated by the writer from a 

 French abstract of Berlese's report drawn up by Dr. Caterina 

 Samsonoff. 



During the past year Professor Berlese has published in a long 

 article in Redia (X, Parts 1 and 2, May 20, 1915, pp. 151-218) a sum- 

 mary account of the warfare in Italy against Diaspis pentagona which 

 at the beginning of the present century threatened the extinction of 

 the silk industry of Italy through the destruction of the mulberry, of 

 the early laws enacted to enforce the mechanical and chemical fight 



