11 



Winged viviparous female - Body long oval, brownish, head and 

 thorax black; antennae at each joint much constricted, the 3rd joint 

 longer than the 5th, which having about 8 rings, the 4th with about 

 4 rings, much shorter than the 6th, which having about 8 rings, ante- 

 rhinarial very short and somewhat pointed; wings with fulvous veins 

 stigma grayish at the hind margin, fuscous, media at the basal half 

 obsolete; abdomen oval, at the apical end fuscous; cornicles and cauda 

 indistinct; legs short. 



Length of body - 1.5 mm.; exp. tegm. 4.2 mm.; antennae 0.5mm. 

 Nymph - Nearly the same as that of the wingd viviparous female, 

 but differs from it in having the body paler in colour, antennal joints 

 not constricted, the apical joint of the antennal wanting sensoria, and 

 wings-sheath reaching to the 2nd abdominal segment. 

 Lengthof body 1.5 mm.; antennae 0.4 mm. 

 Hab. -Hokkaido, Honshu; Europe. 



F. P.- Ulmus campestris var. major (gall-making spring-form); 

 Panicum,Setaria, Triticum (root-attacking summer-form). 



Nom. Jap. - Nire-ibofushi, 

 au 1899, 1 have sent some specimens of this insect to Dr. G. Horvath, 

 Budapest, and it was identified by him as Tetraneura rubral Licht. 

 The description of Lichtenstein is not so concise as to descrimate my 

 species, and while it belongs to quite different genus, I have given 

 the quite different new name to this species. 



It is well established fact that the virgogeniae of the genus in the 



latter part of May or in the beginning of June migrate to the farm 



and attack the roots of the various graminous plants, repeating some 



generations there and return as sexuparae to Ulmus in autumn. I have 



1) Termes, Fuz. Vol. XX11, P. 366 (1899). 



