55 



genital-plate large, broadly conical, lower genital plate deeply bilobed 

 and mucli longer than the upper; legs as usual, tarsi on each apex with 

 3-4 capitated long hairs. 



Genotype - Nipponaphis distychii Pergande. 

 Description of Pergande is not sufficient for this genus, so I have 

 given some more essential minute details of it. 



1, Nipponahis dictychii Perg. (PL XI f. 5, a, a') 

 Nipponaphis distychii Pergande, Ent. News. Philad. Vol. 

 XVIII, P. 205(1906). 



Winged viviparous female - Body oblong, black, abdomen yellowish 

 brown; antennae reachnig about to the base of the abdomen, the 2 basal 

 joint short, the 3rd the longest, longer than the 4th and 5th combined, 

 being divided by from 41 - 44 annulations, the 4th longer than the 5th, 

 with from 20 - 24 annulations, while the 5th with 11-15 annulations, 

 anterhinarial short, truncate at tha apex, bearing 3 or 4 short bristle*; 

 thorax as long as broad and slightly broader than the abdomen; wings 

 hyaline, with a grayish tinge, and slightly darker shade along the 

 veins, the costal cell and stigma still darker, costa, subcosta and the 

 veins blackish, the first 2 obliques arise quite near each other, the fork 

 of the media is unusually long and narrow, while at least 2/3 of the 

 stem of this vein obliterated; the 2 obliques of the hind wings at least 

 3 times as far distant at the base as those of the forewing, at the costa 

 with 4 small booklets; legs grayish brown, tarsi on each apex with 3 

 capitated hairs. 



Length of body 2 mm.; expt. tegin, 7 mm.; antennae 0.8 mm. 



Hab. - Honshu, Kiushu. 



F. P.- Distychium racemoswm. 



