Insecls Inpirions to the Raspl 



uerfi/. 



437 



dorsal median lino; the sides pale greyish-^reen, cornmenciiig just 

 above tlie dark spiracles ; there are two dark patches just above each 

 proleg, the lower the larger, the ripper smaller one is anterior; tliese 

 also occur on the fourth and twelfth segments, liut iire smaller ; legs 

 pale greenish-grey with dark apices; prologs pale; the last two 

 segments show a yellowish tinge and some minute spines. The 

 skin is much wriid<led (Cameron says : " Beset witli small shining 

 white tubercles"). Where the first brood pupates we do not 

 know. 



The larva' occur again in the summer and early autumn (/','•., from 

 the end of -Tuly until October). 



Those under oljservation had all pupated, or rather spun up, in the 

 hollows of the raspberry stems that had been cut back. When they 

 attack the rose they usually pupate in the branches. The larv;v fi\nu, 

 in the lioUowed-out pith cavity, a semi-transparent par('hment-lil':e 

 grey to dull olive-green 

 cocoon in which they re- 

 main all the winter. In 

 March or' April the larvae 

 pupate within the cocnon. 



The larva.' and adult 

 seem subject to much 

 variation in colour, the 

 latter especiall}' in regard 

 to the legs. 



This sawfly occurs iu Gernumy, Austria., Hungary, France, 

 Switzerland, Holland, Sweden, llussia, and Eastern Siberia, and, I 



believe, Finland. 



Natuii.vl Exemies. 



A large Ichneumon, Criiptii^' rmiihi/forum, Boie, is parasitic on 

 this insect. An Ichneumon hatched out on the 19th of March fnim 

 the material sent by ^Mr. Bickham. Its head, thorax and al)domen 

 are shiny Idack; the head and pleune are clothed with pale pubes- 

 cence; the legs are deep bnck-red; the ant ennte black with a median 

 creamy-yellow band ; the hyaline wings have a deep brown stiguLa 

 and a small creamy-white spot at the base. 



Should this turn out to be a harmful insect in Herefordshire, it 

 could easily be controlled by heavy spraying with hellebore wash or 

 arsenate of lead to kill the last brood m the autumn. Those that 

 occur in the spring, if this were done, would do but little damage, 

 as they would be few m number. It would be well, however, to 

 destroy any that are seen then as well. 



l!SO.— LAl^A'A n|.' Hii: litn!t n 



