Vol. VIII] ESSIG & KUIVANA—SOME JAPAMESE APHIDID^ 



103 



EOE del 



Figure 34. — Pterochlorus tropicalis Van d. Goot. Apterous viviparous female 



black. Body hairy. Antennae black, hairy; lengths of ar- 

 ticles: I, 0.13 mm.; II, 0.15 mm.; Ill, 1.10 mm.; IV, 0.36 

 mm.; V, 0.32 mm.; VI, 0.24 mm. (base 0.15 mm., spur 

 0.09 mm.) ; total 2.30 mm. Sensoria large, circular and ar- 

 ranged as follows: III, 1-15; IV, 2-5; V, 1-2; VI with usual 

 number. Cornicles black, hairy, 0.36 mm. long and 0.74 mm. 

 wide at the base. Cauda black, hairy and rounded. 



Host plants — On Kunugi, Qiiercus serrata Thunb., 

 Kashiwa, Querciis dentata Thunb. and Shii, Castanopsis cus- 

 pidata Schot. (listed as Pasania cuspidata Oerst.). 



Locality — Tokyo. 



Date of collection — May 15, 1913. 



Collection number — 39. 



