OF WASHINGTON. 135 



This remarkable distribution is practically followed by Pro- 

 spalta aurantii, Aphelinusfuscipennis, A. mytttaspidis and 

 A. diaspidis all species of the writer's ; some of the localities 

 mentioned for Aspidiotiphagus not yet being noted for some, and 

 a few additional localities being noted for others, as, for example, 

 A. diaspidis from San Luis, Mexico, and A. fuscipennis from 

 Natal. 



Another species which has also practically this same almost 



FIG. g. Arrhenophagus chionaspidis ; male and female an 

 tennae greatly enlarged (original). 



universal distribution is curiously enough Arrhenophagus chi- 

 onaspidis Aurivillius. This extraordinary Encyrtine was de 

 scribed by Dr. Aurivillius in 1888, from specimens reared in the 

 female sex only, from Chionaspis salicis in Sweden. The re 

 markable structural characters of the form attracted my attention 

 and I wrote to Dr. Auriviliius for specimens and he was good 

 enough to send me a large number. At the March (1895) meet 

 ing of this Society, I recorded the verification from these speci 

 mens of the characters described and figured by Aurivillius and 

 mentioned the rearing of the same species from Diaspis rosce 

 in this country at Kirkwood, Mo., by Miss Mary E. Murt- 

 feldt. This discovery I considered at the time a remarka 

 ble one, but later received specimens of the same species 

 from Mr. W. G. Johnson, who had reared them from the Dias 

 pis scale at Champaign, 111., and later had the pleasure of 

 rearing in Washington specimens of the same species from Dias 

 pis rosce received from Mr. R. J. Black, of Bremen, Ohio. 

 Still later, specimens from the same host insect were received 

 from Professor Berlese, reared at Portici, Italy, and, again, Mi\ 



