24 BRITISH APHIDES. 



parchment-like. Veins brown and coarse. Stigma 

 broad. Rostrum short. In my figure, the veining of 

 one fore-wing is drawn as abnormal ; a circumstance 

 not infrequently seen amongst these low types. 



Sometimes this Chermes is very numerous on the 

 twigs of the Scotch fir, Pinus sylvestris. In early 

 June they form numerous tufts of white cotton round 

 about the bases of the green needle-like leaves. If 

 these tufts are searched, the apterous mother may 

 be seen surrounded by thirty or more yellow eggs, 

 which become browner as they attain maturity. The 

 ova are much preyed upon by larva? of Scymnus 

 diseoideus, Anthocoris fusca (Kalt.), Agromyza ehermi- 

 vora (Kalt.), and other ravenous insects. 



Kaltenbach originally took this insect plentifully on 

 the Weymouth pine (Weikmuthskiefer), Finns strobus. 

 He gives a figure of the wing showing the peculiarity of 

 veining which belongs to Koch's genus Anisophleba. 



Chermes abietis, Linn. Plates CXVI, fig. 5 ; Plates 



CXVIII and CXIX, figs. 1—2. 



Chermes abietis, Linn., Fab., Schr., Kirby and 



Spence, Kalt., Koch, Pass., 

 Eatz., Leuckart. 



Adelges gallarum abietis, Haliday. 

 ,, ah i ctis, Walk. 



Aphis gallarum abietis, De Geer, Burm. 



Sacchiphantes abietis, " Ruricola." 



Elatiptus, Amyot. 



Apterous viviparous female. 

 Queen-Aphis ? 



Inch. Millimetre. 



Size of body 0'035 X 0*022 0-88 X 0*55 



Length of antenna) 0'009 0'22 



Very small. Blind. Ochreous yellow. Mealy. 

 Oval ; mite-like in form ; dorsal portion domed. 



