394 



Insect Pests. 



becoming pale yellowish-green. At each moult the insect fixes itself 

 firmly to the underside of the leaf by its claws and proboscis. Unlike 

 the nymphs of Typldocyba, they are very active and run rapidly, but 

 do not jump like the adults. 



The adult C. viridula is green, with pale marks. 

 C. flarescens is more of a yellowish-green. 



The distribution of C. flarescens in Britain is given by Edwards 

 as Norwich and Cotswold districts ; Dublin (Carpenter) ; Hastings 

 (Butler) ; Glanvilles Wootton (Dale). One could add some hundreds 



of localities. Suffice to 

 say that it has occurred 

 in such numbers as to 

 J^^^^^jfc^^ cause damage in several 



localities in Kent, Sussex, 

 Herefordshire, Worcester- 

 shire and Huntingdon- 

 shire. 



The allied species is 

 also recorded from the 

 Norwich and Cotswold dis- 

 tricts ; Pitlocliry (Nor- 

 man) ; Ardara (Johnson) ; 

 Ireland (Haliday) ; Glan- 

 villes Wootton (Dale) ; 

 Hurst Green, Hastings, 

 Ewhurst and Chingford 

 (Butler). Specimens have 

 been received in all cases 

 from the same localities 

 as flavescens. 



FIG. 203. LEAF HOPPF.KS (Chit 



[A. r. D. Rintoul. 

 iln>) OX APPLE LEAF. 



They are both probably found throughout the whole country. 



NATURAL ENEMIES. 



Quite a number of Chlorite? and Typlilocybw are found to be 

 attacked by parasites. 



Saunders (14) records a Strepsipteron, Eleuchus tcnuicornis (of 

 Kirby) as a parasite of the allied Liburnia, and figures this parasitic 

 coleopteron emerging from the host. 



The two most important natural enemies of the Typhlocybidce 

 are the Proctotrupids, of the genus Aplielopu*, and Pipuuculid larvie. 

 Quite a number of the Chlorite? and Typldocyba, examined from all 



