Vol. VIII] ESSIG & KUWANA-SOME JAPANESE APHWIDJE 



79 



Whlnclt.35^^g5x 

 type 



A hind t. 



EOE del. 



Figure 2\.— Aphis thalictrii, new species 



segments black. Legs pale with the tips of the femora, the 

 tibiae and the entire tarsi black. Front wings 2 mm. long. 

 Abdomen lemon-yellow with dusky dorsal markings. Cor- 

 nicles pale-yellow, finely imbricated, widest at base, 0.07 mm. 

 long. Cauda pale-yellow, 0.12 mm. long. 



Apterous viviparous females (Paratypes)— Three or 

 four good specimens. Length LI mm., width 0.65 mm. Pre- 

 vailing color pale lemon-yellow. Antennae pale throughout 

 and finely imbricated ; lengths of articles : I, 0.03 mm. ; II, 0.04 

 mm. ; III, 0.41 mm. ; IV, 0.10 mm. ; V, 0.12 mm. ; VI, 0.25 mm. 

 (base 0.10 mm., filament 0.15 mm.) ; total 0.95 mm. Article 

 III very long as will be seen from the above. Rostrum reach- 

 ing to the 2nd coxje. Cornicles pale, short, finely imbricated, 

 widest at the base and gradually tapering towards the mouth, 

 0.08 mm. long. Cauda pale, noticeably long, being 0.21 mm. 



