210 THE CANADIAN ENTOMOLOGIST 



By this time, however, all the damage has been done. Very few 

 seem to be struck b\' Chalcid parasites, but I have bred one species 

 on two occasions. The cliief enemies are the Adalia bipunctata 

 and Coccinella septem- punctata. The chief syrphids I have bred 

 have been Syrphus ribesii and Catabomba pyraslri, but I have found 

 several other larvae feeding on them, including Syrphus grossularice. 

 Spraying has little or no effect on this pest when once the leaves 

 are curled. Nicotine-soft soap wash is the only one that shows 

 an\- appreciable effect, and growers retain their nicotine for this 

 purpose, l)Ut it is not nearly effectual enough to clean the trees, 

 as so many lice are not hit owing to the dense leaf curling. Early 

 spraying with nicotine and soap has, however, in many cases 

 checked ihe damage. The best results I have seen ha\e been with 

 late linu' spra\ing, just before \hv blossom opens. In small planta- 

 tions and gardens stripi)ing the curled leaves on ])ush trees has 

 produced excelleni results, and also autumnal spraying to kill 

 the sexuales. 



Aphis crataegi Kaltenbach (non Buckton). 



Kaltenbach, M(mk). PHanz., p. (Ki, 1S4.{. 



Tiilljireii. I I),.. IVak. Knt. X\II, pp. o!) uul ~(S, 1907. 



Tluobald, Kntomologist XIJV, p. 403. KM 1. 



Theobald, kept. Eco. Zoo!., I'.Ml, p. .U, 1*»12. 



Theobald, Kntomologist XIAIII. No. 0:50. |x JoO, .">, I<)l."i. 



A late viviparous female . 



Black and shin\-, with a mealy snow-white band oTi the base 

 of the abdomen, which varies from a narrow line to a broad band 

 covering the first four segments, but usualb' onl>- the. first two; 

 this band has a white meal orbit abo\e and l.eneath. The colour to 

 some extent varies; it may be pale yellowish white, pure white or pale 

 pink, more rarel\' with an indistinct whitish green hue, and on this 

 pale area are a few paired dusk>' marks or spots; five pairs of lateral 

 black papilla' before the cornicles. The posterior of the abdomen 

 may be a pale colour, with narrow transverse dark bars, and 

 there are two sub-median papiihe behind ; \enter pinkish to pinkish 

 white, and also to some extent meaK*. Antenna* shorter than the 

 body, black; the 3rd segment with ()l-70 sensoria; 4th with 25 to 

 30 sensoria; 3rd thick and longer than the 4th; 4th about as long 

 as the oth. Kyes dark brown. Proboscis yellowish, apex black, reach- 



