92 CALIFORNIA ACADEMY OF SCIEXCES [Proc. 4th Ser. 



smallest and the last pair largest ; five pairs of large truncate, 

 mostly faintly bilobed yellow or pale dusky ones, on the sides, 

 many of which are as large as the cornicles. From each of 

 these tubercles arise a number of hairs or spines. Cornicles 

 pale green, widest at the base, somewhat constricted near the 

 middle; the length, 0.10 mm., greater than the width. Cauda 

 knobbed with only a slight basal constriction, pale green, 0.10 

 mm. long. Anal plate distinctly bilobed. 



Nymphs — Pale green, the bodies thickly beset with long 

 hairs which are not knobbed at the tips. 



Host plant — On the underside of the leaves of Kashiwa, 

 Quercus dentata Thunb. 



Locality — Tokyo? (not given). 



Date of collection — May 19, 1913. 



Collection number — 47. 



Remarks — The species is named from the large tubercles on 

 the dorsum. 



Myzocallis kuricola (Mats.) 



(Nippocallis kuricola Mats.) 



Figure 29 



Winged viviparous female — Thirty-two good specimens. 

 Length 1.2 mm., width 0.55 mm. Prevailing color pale green, 

 the body covered with a whitish powder. Head pale green to 

 amber with several pairs of small tubercles from each of which 

 arises a single long straight spine. Antennse pale, furnished 

 with a few long hairs, with the articles I, II and the extreme 

 base of III and the apices of III-VI dusky or brownish ; lengths 

 of the articles : I. 0.05 mm. ; II, 0.06 mm. ; III, 0.39 mm. ; IV. 

 0.18 mm. ; V, 0.17 mm. ; VI, 0.18 mm. (base 0.09 mm., filament 

 0.09 mm.) ; total 1.03 mm. Sensoria large, circular and in a 

 row. On III there are 6 on each member, the paratypes show- 

 ing a variation of from 5 to 8 ; articles V and VI have the usual 

 ones. Rostrum reaching to the second coxae. Tubercles on 

 the thorax small, with single spines arising from each. Legs 

 pale green with the distal ends of the tibiae and the tarsi 

 faintly dusky. The veins of the wings are heavily clouded, the 

 borders being specially wide in the front wings as shown in the 



