40 K- Takalmslu 



vfirsc row ou the dorsum of tlie segments, those on the posterior half larger than 

 those on the anterior half. 



Cornicles slender, very slightly dilated on the distal portion, not dilated at the 

 base, not cnrved, not reticulated, somewhat imbricated, longer than the spur of the 

 last antennal joint, often almost as long as the last antennal joint, about twice as 

 long as the cauda. Cauda stout, broadest at the Joase, gradually tapering, with the 

 apex rounded, witliout distinct constrictions, about 1.7 times as long as wide, slightly 

 shorter than the 3rd antennal joint, provided witli about 5 long bristles. Legs 

 slender; fore tibiae stouter tlian tlie ord antennal joint; hind tibiae almost as stout as 

 the cornicle, provided with many rather long hairs, some of which are capitate; 

 tarsi imbricated, much shorter than the cjnda. Anal plate broadly rounded, witli a 

 few long hairs. 



Length of body about 1.2 mm. Antenna about 0.75 mm. 



HosL-Chri/santhemMm sp., attacking the leaf and ilower. 



Distribution .-Formosa: Taihoku. India (Das). 



A few wingless viviparous females were collected liy the writer on Marc^h 26, 

 1923. 



Jjihis rufomacuJata Wilson (Entom. News, XIX, p. 261, 1908) seems to 

 1)e very closely allied to this species. 



Cavariella neocapreae Takah. 

 (PI. VII, A, figs. 6-10 and PI. VII, B, figs. 1-2). 

 Aphididae of Formosa-l, p. 37 (1921); Aphididae of Formosa-2, p. 36 and 

 93 (1923). 



Nymph of viviparous female. 



Key to instars. 



( 1 ) Antennae 4-joiuted Tlie 1st instar. 



Antennae 5-jointed (2) 



( 2 ) The 3rd antennal joint about twice as long as the 4t]i, almost as 



long as the spur of the last joint The 2nd instar. 



The 3rd antennal joint more than twice as long as the 4th, 



longer than the spui- (,3) 



( 3 ) The 3rd antennal joint more than twice as long as the 4th The 3rd instar. 



The 3rd antennal joint more than tlirice as long as the 4th The 4th instar. 



(The first instar) Yellowish green. Eyes black. Antennae pale greenish, 



very sliglitly dusky on the 4tli joint. Cornicles slightly dusky. Cauda pale 



