72 



the sucking bristles. This is divided into the the following 2 tribes: 

 Gonapophyses wanting; waxgland'3 plates with very large factes; 



secondary rliinaria narrow, ring-like Tribe Schizoneurini. 



Gonapophyses present; waxgland's plates mostly with small facets; 



secondary rhinaria less narrower and only at the underside ringed 



Tribe Pemphigini. 



1, Tribe Schizoueurini. 



The following 4 genra are found in Japan: 



1. Media of the fore-wings once forked '•• • 2 



- Media of the fore-wings simple • 3 



2. The 5th and 6th antennal joints wanting annulations 



Schizoneura Hartig. 



- The 5th and 6th antennal joints wanting annnlations 



• • Eriosoma Sam. 



3. Hind-wings with 2 obliques GobaisMa Mats. 



Hind-wings with one oblique Tetraneura Hartig. 



1. Gen. Tetraneura Hartig, 1841. 

 (Zeit. Ent. III. P. 365) 



Antennae 6-jointed, subequal to. the head and thorax combined, the 

 3rd joint longest, the 4th snbequal or somewhat shorter than the 6th, 

 the 5th somewhat shorter than trie 3rd, but distinctly narrower, ante- 

 rhinarial nearly one half the length of the postrhinarial, stongly annu- 

 lated excepted the first 2 and the last joints; rostrum reaching beyond 

 the first coxae; fore-wings ample, nearly I J the length of the body, 

 stigma fusiform, stigmatic nervure arising from rather nearer the apex 

 moderately curved, media simple, obsolete at the basal half, the first 

 2 obliques widely separated from each other at the bases: hind-wings 



