212 THE CANADIAN ENTOMOLOGIST 



with dark legs and cornicles; the other fawn coloured and mealy, 

 with dark wing-pads and e\es. Legs and cornicles dusky. 



Distribution. — Windermere, Cumberland, 23, V, 14 (Rymer 

 Roberts). Marden, V, 07, and Wye, Kent, V, 10 (Theobald). 

 Haddenham, Cambs, VI, 05 (Theobald), and Mortimer, Berks, 

 V and VI, 11 (Lake). 



Food Plants — Pyrits mains, Pyrus communis and Cratagus 

 oxyacantha, etc. 



Observations. — Described by Kaltenbach from Apple, Pear 

 and Hawthorn. I have found it and received it from apple in 

 England and often <jn hawthorn in Kent. It produces a very 

 marked appearance, causing the leaves to become blistered. The 

 blisters assume a rosy red to deep red hue; when on apple, yellow 

 and red. The leaves curl downwards, and under those galled areas 

 the insects live and reproduce. Sometimes the mid-rib region is 

 galled; at others almost any part may be deformed; this is es- 

 pecially so on the hawthorn. It does not appear to be a commonly 

 distributcfl species, anyway in the south and midlands. It was 

 sent me from Mortimer in 1911, where Mr. Lake found it in abund- 

 ance on Lane's Prince .'\lbert apple. It is a very marked species, 

 easily distinguished when alate by the white basal abdominal 

 band when alive, and by this area being pale when the mealy 

 covering is removed. The aptera', in certain lights, appear quite 

 black; in others a distinct grey-green, with dark legs, antennae 

 and a mealy coat. They are also flatter than the other dark species 

 found on the apple (nigra, rumicis, etc.). Schonteden (Mem. Soc. 

 Ent. Belg., XII, p. 226) places this species as a synonym of Boyer 

 de Fonscolombe's Aphis pyri, which I cannot help thinking is 

 incorrect. 



Fonscolombe expressly states that the abdomen of the alate 

 female is "Verdatre, avec une bande brune un peu confuse de 

 cheque cote; quelquefois presque tout brun; les tubercules lateraux 

 sont verdatres." The sexupara? are not known. 



Alatai hatched from May 22nd to May 30th; they were very 

 active. It is not known to what tree or plant they migrate. It 

 is usually seen late in May and June, and continues to July. 

 Buckton describes quite a distinct Aphis as Kaltenbach's Aphis 

 cratcegi, the apterous female being bright green and slightly mealy, 



