88 R. Takahashi. 



Antennae very short, 4-jointed, with 3-4 short hairs; apical sensoria 

 of tlie 3rd joint very small; the relative length (if joints as follows : 

 III — 20. .25, IV — 14(10 + 4). Rostrum very shoi't. not reaching the 

 middle coxae. Eyes very minute. Aljdomen broadest at midlength. 

 Cornicles represented only l)y pores. Cauda mucli wider than long 

 and constricted at the base, with some liairs. Anal plate distinctly 

 bilobed. Legs short and slender, with some modei'ately long fine 

 hairs; each tarsal joint with 2 long capitate hairs. 



Length of body — 1.7 mm. Antenna — 0.5 mm. 



Winged vivipai'ous female. 



Head, eyes, antennae and mesothrax black. Prothorax yellowish 

 green, with a dark green patch on the side of the prt)notum. 



Abdomen yellowish green, with a pair of longitudinal dark green 

 patches on the dorsum ; the area between the cornicles dark green. 

 Cornicles and cauda pale yellowish green. Legs dusky, with the apices 

 of femora and tibiae, and the tarsi black. 



Stigma and veins gray. Botly flat, broadest between the cornicles, 

 with a fuw short hairs and without wax}' secretions. Head a little 

 shorter than the prothorax: tubercles very short, much shorter than, 

 or nearly as long as, the 1st antennal joint. Eyes large; ocular tuber- 

 cles prominent. 



Antennae short and stout, 5-jointed; the 1st joint much larger 

 than tlie 2nd: the ord with 35-40, the 4th U-IO, the 5th 15, 

 annulations, regularly placed on the whole length; the relative length 

 of joints as follows : III — 52, IV — 22. V — 25. 



Rostrum very short, reaching the front coxae. Mesothorax of the 

 typical Oregma. Cornicles very short. Cauda very short, slightly 

 constricted at the base. Anal plate l)ilobed, witli some tine hairs. 

 The 1st and 2ad obhques almost united at their bases; the 3rd more 

 slender than the 1st, obsolete at the base and only once forkeil: hind 

 wings with 2 obliques neary parallel: booklets 2. Legs short and 



