66 CALIFORNIA ACADEMY OF SCIE\'CES [Proc. 4th Ser, 



Siphocoryne japonica, new species 

 Figure 14 



Winged viviparous female (Type) — From two indi- 

 viduals in good condition. Length 1.2 mm., width 0.7 mm. 

 Prevailing color blackish and green. Head dark. Antennae 

 black throughout, imbricated, with very few hairs ; lengths of 

 articles: I, 0.07 mm.; II, 0.05 mm.; Ill, 0.45 mm.; IV, 0.18 

 mm.; V, 0.13 mm.; VI, 0.30 mm. (base 0.12 mm., filament 

 0.18 mm.); total 1.18 mm. Sensoria of various sizes and 

 numerous, distributed as follows: III (left) 43, (right) 49; 

 IV (left) 8, (right) 8; V (left) 3, (right) 2. There is the 

 usual number on VI. Paratype has the following number : III 

 27,32 ; IV 5,5 ; V 2,2. Rostrum reaching to the base of the 

 abdomen. Thorax black. Legs pale with the apices of the 

 tibiae and all of the tarsi black. Front wings 3mm. long, veins 

 brownish. Abdomen dark green with dusky or black markings 

 on the dorsum. The abdominal posterior horn indistinct or 

 rudimentary, dark with two apical spines. Cornicles black, 

 somewhat recurved, imbricated, slightly swollen towards the 

 ends, 0.28 mm. long. Cauda dusky, 0.15 mm. long. 



Apterous VI\^PAROUS females (Paratypes) — Two mature 

 specimens in good condition. Length 1.7 mm., width 0.9 mm. 

 Prevailing color dusky purplish. Bodies slender, the surface 

 variolous. Antennae short, pale with the apical portions dusky ; 

 lengths of the articles : I, 0.06 mm. ; II, 0.05 mm. ; III, 0.24 

 mm.; IV, 0.09 mm.; V, 0.09 mm.; VI, 0.21 mm. (base 0.09 

 mm., filament 0.12 mm.) ; total 0.74 mm. The sensoria nor- 

 mal. Abdominal horn short or rudimentary with two terminal 

 hairs. Cornicles imbricated, somewhat swollen beyond the 

 middle, recurved, pale, with the tips or apical halves dusky, 0.3 

 mm. long. Cauda dark, 0.12 mm. long. 



Nymphs — Somewhat pale rosy in color, with dusky an- 

 tennae, legs and cornicles. 



Host plant — Shirane seniku, Angelica polymorpha Maxim. 



Locality — Nikko. 



Date of collection — June 10, 1913. 



Collection number — 85. 



