Insects, etc., Injurious to the Gooseberry. 



267 



attacked, the black currant but rarely. The larvir not only strip 

 the leaves, but the fruit of the gooseberry is also devoured by them. 



The attack of this pest cannot well be confused with any other, 

 save that of the allied species of Nematus, N. comohrinus and N. 

 aiypcndiculat'iLs. Sawily larvae are easily distinguished by the number 

 of prolegs, in this genus fourteen, which, together with the six true 

 legs, makes twenty legs in all. 



This insect occurs over most of Britain. Whitehead records it 

 from Cambridgeshire, Gloucestershire, Kent and Worcestershire (1), 



[./. G. Blakeij. 



FIG. 187.— OVA OF GOOSEBERRY SAWFLY. (X 'i.) 



(Not in normal position.) 



especially in the years 1876, 1879 and 1881 ; Ormerod (2) from 

 various places in Scotland, also Herefordshire, Buckinghamshire, 

 etc. Carpenter records it (;)) from Ireland. Reports or observations 

 made in Devon, Somerset, Huntingdonshire, Surrey, Middlesex, also 

 Sussex and Yorkshire, show it to be common in those counties. 

 Probably it occurs wherever the gooseberry and currant grow. 



Life-History xVnd Habit;-!. 



The adult is rather variable in colour and size, and differs 

 considerably in the two sexes. 



The female is yellowish to almost orange, with black head, three 



