96 E. Takahashi 



(The second instar) Differs from tlio 1st in the following characters: 



( 1 ) Body slightly larger. 



(2) Antennae very small, not imbricated, 2-jointed; the 1st joint as long as, 

 or somewhat larger than, the 2nd, tlie latter without hairs; sensoria not distinct. 



(3) Legs much shorter; front and middle pairs of legs without tarsi or 

 distinct hairs; hind tarsi only one-joiutcd, without claws but with a few long hairs 

 which are scarcely capitate. 



(The third instar) Differs from the 2nd in the following characters: 



( 1 ) Body a little wider. 



(2) Antennae much smaller, only one-jointed. 



Wingless vipiparous female (abult). 

 Bl.ick. Body aleyrodiform, being cemented to the leaf, flat, almost circular 

 when seen from above, with the terminal part somewhat protruding, very hard, 

 lacking hairs and wax; the segments not defined. Antennae and eyes not visible. 

 Anal plate distinctly bilobed, provided with some very long bristles. 

 Length of body-about 0.9 mm. 



Winged viviparous female (adult). 

 Head, eyes, antennae and thorax almost black. Abdomen dusky yellowish 

 brown. Wings slighty clouded along the 1st and 2nd obliques; stigma and veins 

 gray. Legs gray, darker on the distal halves of femora and the apices of tibiae. 

 Cauda yellowish brown. The morphological characters were described in the original 

 description. 



Astegopteryx fici Takah. 

 (PI. IV, B, fig. 4, & PI. V, B, figs. 3-7) 

 Aphididae of rormosa-2, pp. 55 and 146 (1923). 



Full-grown nymph of winged viviparous female. 

 Head, eyes, antennae, legs and wing-pads black. Thorax dark yellowish 

 l)rown. Abdomen blackisii or dark yellowish brown. Tubercles on the dorsal 

 surface black. 



Body stout, provided with some very short blunt tubercles of peculiar form, 

 these furnished with from 1-3 very small tubercles and 2 or 3 very long bri^tles 

 arising from much smaller tubercles, on the dorsum, somewhat covered with a 

 powder. Wax-pores not develojied. Head and pronotum fused together. Head 

 rather small, provided with about 10 very long stout bristles on the dorsum and a 

 pair of blunt tubercles between the eyes; and sometimes with a pair of very small 



