Mr. F. Walker's Descriptions of Aphides. 99 



36. Aphis Pineti. 



Aphis Pineti, Fabr. Ent. Syst. iv. 219. 45 ; Syst. Rhyn.309. 

 15 ; Gmel. ed. Syst. Nat. i. 2207. 



A. tomentosa Pini, Deg. Ins. iii. 26. 2. t. 6. f. 19. 25 ; Zett. 

 Ins. Lapp. i. 558. 2. 



Lachnus Pineti, Kalt. Mon. Pflan. i. 162. 12. 



Pinetifex, Amyot, Ann. Soc. Ent. Fr. 2 me serie, v. 482. 



The viviparous wingless female. The body is oval, convex, dull 

 green, shining, but thickly covered with white cottony matter ; 

 the segments are of nearly equal size : the front is slightly con- 

 vex, and beset with hairs : the mouth reaches the hind-hips ; its 

 tip and the eyes are black : the feelers are filiform, slender, and 

 less than half the length of the body ; their tips are black ; the 

 fourth joint is more than half the length of the third ; the fifth is 

 shorter than the fourth, and the sixth than the fifth ; the seventh 

 is extremely short : the nectaries are like tubercles on the surface 

 of the abdomen : the legs are stout, hairy, and pale green with a 

 bluish tinge, and of moderate length ; the feet and the tips of 

 the shanks are brown; the shanks and the second joints of the 

 feet are slightly curved. 



1st variety. The body is dull red. 



2nd variety. The body is dull reddish brown. 



3rd variety. The body is dull dark red : the nectaries are black : 

 the limbs are pale green. 



The viviparous winged female. The body is grayish black : the 

 limbs are black : the shanks are green with black tips : the wings 

 are colourless, and very much longer than the body ; the wing- 

 ribs and the wing-brands are dark brown ; the veins are paler ; 

 the brand is long and linear; the angle which it forms near its 

 tip is less obtuse than that of A. Pini ; the fourth vein which 

 springs from it is long and straight ; the third vein is obsolete 

 near its source ; it is forked before one-third and forked again 

 before two-thirds of its length ; the angles formed by these forks 

 are very acute ; the tip of the upper branch of the second fork is 

 very near the tip of the fourth vein ; the first and the second 

 veins are almost straight ; they are near each other at the base, 

 but very far apart at the tips. 



Length of the body 1^ line ; of the wings 3 lines. 



1st variety. The body is black : the abdomen is dark green 

 beneath : the feelers are green, brown at the base : the mouth 

 is dark green : the legs are green : the wing-ribs are pale red. 



The pupa has an elliptical dull brown body ; its rudimentary 

 wings are black. 



On Pinus sylvestris, the Scotch pine, in the autumn. 



7* 



