83 



his figure, is very long and subequl to the 3rd, while the 6th is very- 

 short and of an oval form. 



The leaves of Ulmus campestris var major, when attacked by this 

 insect, curl from above downwards into a roll of a sickly yellowish 

 colour, which become red when it ripens. Within thes rolled leaves 

 a large number of larvae are born and when the larvae become winged 

 imargines of the first series they fly off for the purpose of the summer 

 reproduction to seek some intermediate plants as Ribes or other Rosa- 

 ceous plants, but the further life-histry of it is not yet known to us. 



11. Tribe Pemphigini. 



Gonapophyses present (although rudimentary); waxgland's plate 

 mostly with small facets; secondary rhinaria less narrower than those 

 of the Schizoueurini, occupying only the under surface of the antenna! 

 joints; media of the fore wings simple, hind-wings with one or two 

 obliques. 



We have in Japan the following 4 genera. 



1 . Hind wings with one oblique Watabura Mats. 



- Hind wings with 2 obliques • 2 



2. Vertex with large waxgland's plates 3 



Vertex wanting waxgland's plates •••• Pemphigus Hartig. 



3. Antennae long, reaching to the middle of the abdomen, me- 

 sonotum with 2 waxgland's plates Prociphilus Koch. 



- Antennae short, subequal to the head and thorax combined, 

 mef-onotum wanting wax-glad's plates Nishiyana Mats. 



5. Gen. Pemphigus Hartig, 1841. 

 (Zeit. Ent. Ill, P. 36ö) 



