I 



NO. 1108. PROCEEDINGS OF THE NATIONAL MVSEUM. 297 



pointed at tip, front edge slightly convex, liind edge straight; when 

 viewed from behind, the two lobes of the forceps are separated by a 

 narrow slit, the sides of which are not arcuate, but converge gradually 

 toward the tip. 



Female. — Genital segment a little longer than the two preceding ven- 

 tral segments combined ; valves normal and gradually narrowing toward 

 the tips, which are moderately acute; upper edge of upper valve (when 

 viewed from the side) slightly concave, lower valve shorter than the 

 upper, and with its lower edge convex. 



Tif2)e.—^o. 3410, U.S.X.M. 



The collection contains three female specimens, No. 1154 marked 

 2367. I have also seen four other specimens (two males, two females) 

 collected in Japan by Mr. Albert Koebele, who writes that this species 

 is very injurious to mulberry and a serious drawback to sericulture. 



PSYLLA PYRISUGA Foerster. 



The collection contains eight specimens, No. 1150, which in no way 

 differ from European specimens. The synonymy of this species is given 

 by Dr. Franz Low.^ 



1 Ver. K. K. Zool.-Bot. Ges. Wein, XXXII, p. 427 (1882). 



