Apliididae of Formosa. — 3. 35 



tibia, imbricated, almost as long as the distal part of the last autennal joint, about 3 

 times as long as the cauda, extending beyond the tip of the Cauda. Cauda rather 

 lai-ge, stout, gradually tapering, about twice as long as wide, with no constrictions, 

 with aliout 3 pairs of lateral bristles. Legs slender, with many moderately long to 

 ratlier short non-capitate setae; tarsi imbricated; hind tarsi almost as long as the 

 basal part of the last antenual joint. 



Length of body-about 1,3 mm. Antenna-about 1.5 mm. 

 Cornicle-about 0.5 mm. 



Host.-C'irsinvi Japoiiicum, attacking the leaf. 

 Distribution.-Formosa : Kusukusu in Koshun. 



Some wingless forms were collected by the author on November 25, 1923. 

 This aphis closely allied to C. curdulnus Walk., but is a distinct species. 

 Neophorodon rubi Takah. 



(PI. vni, A, tigs. 9-11). 



Proc. Eutom. Soc. Washington, 24, p. 204 (1922) and Aphididae of 

 Formosa-?, p. 17 (1923). 



The author collected some wingless viviparous females and a full-grown nymph 

 of the winged form on the leaves of Ruhus sjk on May 13, 1923, at Shinten, near 

 Tailioku. These specimens differ somewhat from those described in the former 

 papers. 



Wingless viviparous female. 



Pale yellow. Eyes black. Antennae pale yellowish, apices of the 3rd, 4th, and 

 5th joints, and the 6th except the base black. Cornicles pale yellow, with black 

 apices. Cauda yellow. Legs pale yellowish brown. Body oval. Head rather 

 small, the dorsal side provided with 8 rather long capitate hairs, which are shorter 

 than the 2nd antenual joint and arise from very small tubercles, and two similar 

 hairs on the front. Frontal tubercles conspicuous, almost as long as the 2nd 

 ant(>nnal joint, yery slightly convex on the inner side which is provided vvith 2 

 similar capitate hairs. Eyes rather small, very conspicuously protuberant, with large 

 ocular tubercles. Antennae long and slender, imbricated, provided with a few or 

 more very short capitate hairs; the 1st joint larger than the 2nd, on the inner side 

 witii a distinct projection whicJi is almost as long as tlie joint, almost attains 

 tlic apex of the 2nd, and is provided with about 3 short capitate hairs; the 2nd 

 without a tul)erclc; the 3rd more slender than the front tibia, witiiout sensoria; the 

 4th sometimes fused with the 3rd; the 5th with an apical sensoriiun of rather small 



