206 [February, 



pointed at one extremity. When the young quit the ova they are pale OTal bodies 

 -•with somewhat thick legs which they scarcely seem to know what to do with, but 

 in a day or two they get used to them and run about somewhat actively. In the 

 meantime they have increased in size and have indications of some dark marking on 

 the head and down the back. I also observed that the leaves were finely perforated 

 on the upper surface, from which exuded a secretion which I tasted and found to be 

 very sweet ; the young in all stages and in numbers might be seen evidently feeding 

 upon and enjoying it. As the larvae grow older they become of a greenish-white 

 colour, knobbed hairs may be detected around the sides of the abdomen, and a few 

 simple ones on the front of the head ; the elytra-lobes now begin to be distinct ; two 

 lunate patches appear on each side of the crown, the eyes are pale purple, the base 

 of the abdomen becomes brown and at the junction of three or four of the segments 

 is a small dark spot on each. On changing to the nymph-state the entire creature 

 becomes of a more or less dark brown colour, and the front of the head rounded, 

 along which, between the antenna?, are a few short hairs ; the crown is divided down 

 the centre by a pale greenish or yellowish line, and has posteriorly two curved ones 

 of the same colour uniting with the central one and forming an anchor-shaped 

 character; along the inner margin of the eyes there is also a pale streak, and on 

 each side the centre near the posterior margin a triangular black-brown patch ; the 

 antennae are pale green ; two basal joints slightly fuscous ; 1st joint with a short 

 rigid hair at its ajaex, on the inside. Eyes purple ; prouotum yellowish or greenish 

 with about four large and two or three other small brown spots of irregular shape 

 down each side of the centre. Elytra-lobes dark brown, darkest next the suture 

 separating them from those of the wings ; costal margin with two short hairs, one 

 near the base pointing in a forward direction, the other near the middle. Legs pale 

 or yellowish-green ; tibiae, 2nd pair with two knobbed hairs on the outer margin. 

 Abdomen frequently clear emerald-green at the base (? sexual) ; incisions of the 

 first one or two segments narrowly brown on each side of the centre, followed by 

 a large cuneate patch of dark brown ; margin with about seven knobbed hairs on 

 each side. Length about | line (Paris). — Id. : December 2nd, 1882. 



Great destruction of Pieris hrassicce hy Apanteles. — From the injury sometimes 

 done by larvae of Pieris hrassiccB and P. rap<e among cabbages, I presume the 

 circumstance I am about to relate is very exceptional, as were it otherwise, these 

 butterflies would hardly survive the exterminating process. 



Having by mistake failed to preserve specimens of Apanteles glomeratus for my 

 collection, I last summer determined to supply the deficiency ; and hearing that a 

 few larvae of Pieris brassicce had been found in the garden and destroyed, I sought 

 for more, finding only nine. Of these one died, while from all the others emerged 

 larvae of the parasite, none of which were stung by any hyperparasite. Partly by 

 counting and partly by estimate I arrived at 230 as the number of the cocoons, all 

 but one or two of which produced perfect insects. — J. E. Fletchek, Worcester : 

 December, 1882. 



Notes on Tenthredinidce. — On p. 127, vol. xviii, of this Magazine, I recorded 

 Nematus talicis as among the species possessing the power known as mixed- 

 parthenogenesis. I should have written N. melanocephalus, Hartig. The error 



