73 



with one curved oblique; cornicles represented as mere pores; cauda 

 none, genital plate rounded; legs short. 



Genotype - Tetraneura rugicornis Hartig. 

 We have in Japan the following two species. 



1. Teraneura yezoensis n. sp. (PL X, f. 3, a.; pi. XIII, f. 8) 

 Winged viviparous female - Body oblong, fuscous, abdomen fulvous 

 antennae fuscous, the 3rd joint with about 12, the 4th about 3, the 

 5th about 8 incomplete irregular annulations, the 6th not annul ated, 

 but with some indistinct narrow rings, anterhinarial broader than the 

 postrhinarial at the base, with 3 or 4 short hairs; wings hyaline, with 

 a grayish shade, stigma and veins pale fuscous; abdomen fulvous, the 

 black eyed larvae being visible through the dorsal integument; legs 

 pale fuscous, femora at the bases whitish. 



Length of the body 1.8 mm.; exp. tegm. 5.4 -9 mm.; antennae 0.6 



mm. 

 Apterous viviparous female (Fundartix) - Body oval, highly bulged 

 with very whitish hairs, and covered with white waxy secretions; yel- 

 lowish in colour, head, antennae and legs fuscous; antennae very short, 

 3 jointed, the first 2 joint broad, globose, the 3rd fusiform ,nearly twice 

 as long as the first 2 taken' together, anterhinarial very short, rhinarium 

 large and round, near the apex with 3 bristly hairs; pronotum somewhat 

 infnscated, especially at the anterior margin. 

 Length of body 1.5 mm.; antennae 02.5 mm. 

 Hab. -Hokkaido (Sapporo). 

 F. I*. - Ulmus campcstris var. major. 

 Nom. Jap. - Nire yczofuski. 

 Gall -Kosy-red when it matures, fusiform, much broader in the middle 



