Apli ididae of Formosa. — 3. Ill 



Length of body-about 1.7 mm. A ntenua-about 1.1 mm. 

 Ft)re wing-about 2.5 mm. 



Host. -Chrpinus sqip. 



Distribution-Japan (Tokyo). 



The fully-grown nymph of the winged form differs from the adult in the 

 following characters : 



( 1 ) Body oval. 



( 2 ) Hairs on the body much longer, stouter, each arising from a very 

 small tubercle. 



( 3 ) Eyes smaller; ocelli absent. 



( 4 ) Antennae shorter, stouter, without scnsoria on the 3rd antennal joint; 

 with a few very long stout bristles whidi are almost as long as those on the head. 



( 5 ) Rostrum reaching beyond the middle coxae. 



( 6 ) "Wings very short. 



( 7 ) Abdomen without tubercles near the sides. 



( 8 ) Cornicles much larger, expanded toward the base, constricted near the 

 tip, slightly longer than wide at midlength. 



( 9 ) Cauda not constricted at tlie base, tapering, witli the a]iex rouniled, 

 provided with a few long liristles. 



(10) Anal plate not bilobed. 



(11) Legs shorter, stouter, with some much stouter bristles; hiud (arsi longer 

 than tlie 6th antennal joint. 



Shivaphis celticolens (Essig et Kuw.) 



Chronmphis celficolena, Essig and Kuwana, Proc. California Acad. Sc. 4th 

 series, VIII, 3, p. 95 (1918). 



P/iyllapliis ccKicoIcnfi, Takahashi, Trans. Sapporo Nat. Hist. Soc. p. 195 

 (1919). 



Shiraplds celticolen.«, Baker, Bull. U. S. Dept. Agr. no. 82'% ji. 24 (1920); 

 Takahashi, Aphididae of Formosa-2, p. 130 (1923). 



Bracliypterous viviparous female. 



Differs from the macropterous Ibrm in the following eliaracters : 



( 1 ) Ocelli rudimentary. 



( 2 ) Thorax not well developed, 



( 3 ) Wings very short. 



The scpsoria on the 3rd antennal joint seem 1 1 bo fewer in numlier than those 



