Insects Injurious to the Apple. 



155 



fresh colonies, ami so tlie increase gnes on nntii lale in tlie autnnm. 

 I)aring this time, many lea\'es ih'v np ami thi'ir curled Form encloses 

 many of tlie dolpliins, wliich are apparently thiis killed. 



Late in (he autumn a progeny ol ^^•ingless mnles and females 

 occur. The femiile is ^•ely small, cil'lcri ]iltli_- naire than 1 tV mm. 

 long, var>'ing in cnlour froiu dull vcllowisli-green to green, head 

 slightly lirownish, with two dark spnts; antenna.' pide at the hase, 

 dusk.\' apically, legs piale green, excejit tin.' a]!ical ]iorti(in irf the 

 tiliia-, the taisi and knees, which are l)rii\vn; cornich.'S lilaclc, s(raiuh1, 

 tapering; genitalia dusk\' with t«'o dark 

 spots in frcait, some sIkjw paler sides and 

 are darker green according to their age. 

 The\' are closely attached to the underside 

 of the apiple leaves. Most occur close 

 against a rih or A'ein of the leaf. ^Vt the 

 same time small vsinglcss ]iialcs appear. 

 These are often not more than one-hfth 

 the size of the autumn o\-ip;ir(.)US females. 

 I'nlike most male aphides, it lias a longish 

 pnohoscis, nearly reacliing to the second 

 alidominal segment ami which is hlack in 

 colour; it lias rather long dark hro\\'n legs. 

 In colour, the male ^■aries from vellowish- 

 lirown to dull )■ello^visll, witli dark head, 

 long Ijlackish antenna' ; cornicles and apex 

 of hody lilack, the former straight, Tlie=e 

 sexual forms wei'e noticed last year first 

 on the 27tli of (Jctoher, nmi on until the 

 Ttli (.if Deceniher. The females commenced 

 to deposit eggs early in Movemher and con- 

 tinued to do so for over a montli. i\Iost 

 placed their hlack ova on the shoots, a lew 

 at the base of finds, and the axils of twi.gs. 

 As many as three hundred eggs ma>- lie found on one shoot. The 

 ova remain all the winter, and can then easily lie seen hy their 

 shiny shells. Civat nundiers of these e.gu's shrivel up. 'These are 

 infertile ones. It i,-. lliese sh'rile o\a that are Ihonghl to have 

 ■inter wa.shes. Tliis species, in company with 



I/.'. ;•;. 



klUe 



liv '\"ai'ious wi 



J^//(/n Rorbi. curls the leaves, hut does not attack the blossoni. 



Tills ajihis (iccnrs in Ireland as well as England, Carpenter 

 recording it from County Tyrone. 



(8) 



