112 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Apterous viviparous females (Paratypes) — Several 

 specimens. Length 1.7 mm., width 1.3 mm. PrevaiHng color 

 dark-purple; body slightly covered with white powder; nearly 

 hemispherical in shape with the sides perpendicular and the 

 surface somewhat depressed on the dorsum. In general appear- 

 ance these females somewhat resemble the nymphs of certain 

 aleyrodids, but are usually more robust. The epidermis, when 

 cleared, shows a mosaic-like structure. All of the appendages 

 are very small. Antennae minute, indistinctly 3-articled and 

 held close to the body. Legs small and appear attached to the 

 sides of the body. The cornicles, if present, are not visible on 

 any of the specimens although many were thoroughly cleared 

 (in clearing in KOH the bodies literally went to pieces so that 

 only fragments could be studied). Cauda broadly rounded. 

 Anal plate indistinctly bilobed. 



Nymphs — Dark purple and covered with white powdery 

 wax (color notes do not specify whether these are the nymphs 

 of one form or of both winged and apterous forms). 



Host plant — Shii, Castanopsis cuspidata Schot. (listed as 

 Pasania cuspidata Oerst.). The apterous females are clustered 

 along the twigs in a more or less fixed position as specimens 

 remained on the twigs after the long trip across the Pacific. 



Locality — Nishigahara, Tokyo. 



Date of collection — May 12, 1913. 



Collection number — 27. 



Remarks — This species is certainly close to Cerataphis, 

 where it would have been placed except for the fact that it does 

 not have the characteristic horns of that genus. 



