(5 [January, 



NOTES ON APHIDES. 

 BY G. C. BIGNELL, F.E.S. 



Callipterus quercus, Kalt. — One of my young oaks growing 

 in a flower pot this autumn was much infested with Callipterus quercus. 

 On October 21st, when looking at them I saw a winged male, and on 

 reference to the figure in Buckton's Monograph, I observed that it 

 did not agree in colour with that species ; I consider this, however, 

 to be only a variety, as it was in company with the jxllow viviparous 

 females of this species, a description of it may be of service at some 

 future time. 



Head wider than the thorax, both very broad. Antennge, base greenish-blact , 

 the remainder fuscous ; apex of the second and third joints much darker. Eyes red. 

 Abdomen with seven black dashes on the dorsal region, and Ave black spots on the 

 sub-dorsal, forming a line with the nectars, which are short, black, and trumpet- 

 shaped. Wings, veins fuscous, and slightly clouded at their apices. Stigma light 

 fuscous, with base, outer and inner margins, and apex much darker, thereby giving 

 a well defined and conspicuous border to the stigma. 



Expanse of wing, 6i mm., or four times the length of the body. 



ScHizONEURA YAGANS, Koch. — This white form* does not appear 

 to have been previously recorded as occurring in England. I captured 

 a dozen winged specimens on October 4th, in Cannwood. I met with 

 it again on the wing on October 11th, nearly a mile distant from^ the 

 first locality ; it is a very conspicuous black insect, with the first two 

 segments of the abdomen white, and the basal margins of the last 

 three also white ; these I captured when they settled on the leaves to 

 bask in the sunshine. 



Prociphiltjs btjmeli^, Schr. — I observed what I am almost 

 certain was this species; I saw many examples, but as I had not my net, 

 I only managed to capture one, this one was driven on to my coat in 

 my endeavour to capture it with my hat ; I placed it in a glass tube, 

 but much moisture condensed, and it got spoilt by the end of my walk. 

 I had a good look at it directly after its capture, and on my arrival 

 home I hunted through Koch's Monograph of the Aphides, and therein 

 found a good figure of it. This insect when on the wing looks very 

 like a small white feather floating along ; T tried many times to 

 capture it with my hat, but the current of air carried forward with 

 my hat also carried the insect with it. 



Stonehouse, Plymouth : 



November Uh, 1897. 



* In G. B. Buckton's Monograph of the British Aphides, vol. iii, p. 107, this name is placed as 

 a synonym of Schizonevra corni, which is descT'ibed as "velvety-black, with the first three ab- 

 dorninal and also the apical rings ferruginous." 



