8 RESULTS FROM CIPSY MOTH PARASITE LABORATORY. 



Highlands by Mr. Fisko and assistants from egg-masses received from 

 all parts of Japan, but more commonly from those collected in 

 Fukuoka, these egg-masses ha^dng been sent in by several of the ener- 

 getic Japanese correspondents of the Bureau, but principally by ^Ir. 

 U. Nawa and Prof. S. I. Kuwana. It has also been reared from eggs 

 sent from the Crimea by Prof. S. Mokshetsky, and in especial abun- 

 dance from eggs sent from Hungary by Prof. J. Jablonowski. The 

 species appears to be much more common in European countries, 

 but is apparently local in its European distribution. Dalla Torre 

 records it from France and from lower Austria, ^lany thousands of 

 specimens of this species have been reared at the Parasite Laboratory. 

 It attacks the egg of dispar very shortly after the latter is deposited, 

 and requires a full year for a generation — a fact which, while it would 

 seem to reduce its possible value as an effective parasite of the gipsy 

 moth, really enhances it as an introduced species, since it is independ- 

 ent of other insects for alternate hosts at seasons when eggs of the 

 gipsy moth are not available. The accompanying figure was drawn 

 from a museum specimen. In life the abdomen is not sunken dorsally. 



Family PTEROMALIDiE Ashmead. 



Sialafaixiily SFHEGJ-IGJ-^STElRIIvr^?!; .^slimead.. 

 Tribe F»-A.CHYNE:URINI ^^s^shnnead. 



Genus PACHYNEURON Walker. 



PACHYNEURON GIFUENSIS Ashmead. 



rachyneuro a gi/uensis Ashniesid, Journ. N. Y. Ent. Soc, xii, No. 3, p. 158, Sep- 

 tember, 1904. 



This species, described by Ashmead as above, was part of a collec- 

 tion referred to the U. S. National Museum some years ago by Pro- 

 fessor Mitsukuri, of Tok3^o. It has recently been imported from 

 Japan in eggs of dispar collected by Prof. S. I. Kuwana, and is appa- 

 rently common in the vicinity of Tok^^o. In habits it is like Tynda- 

 richus navx, as determined by Messrs. Fiske and Smith at the Para- 

 site Laborator}^, but it is a little less common and issues in the spring. 

 It is a hyperparasite, and attacks Schedius Icuvanse and Tyndarichus 

 navse as well; in the first instance being secondary and in the other 

 instance tertiary. In one instance at the laboratory it was reared 

 from an egg which originally contained Anastatus hifasciatus. The 

 type and two other specimens were reared by Mr. Y. Nawa from an 

 aphis at Gifu, Japan, undoubtedly parasitic on some primary parasite 

 of the Aphidid. 



