E. A. Cockayne 85 



(b) Right side male t\'pc (grey), left side female ? ab. ri(fe.icens 

 (deep pink), right antenna showed slight male characters, left wholly 

 female. 



(c) Right side foinale ("ab. rtifescens (deep pink), left side male 

 type (do\e grey). 



Many .1. popiili gynamlroniorphs show great difference in ground 

 colonr on the two sides, which is not a se.xual one. Sometimes the 

 male side is red-brown, and the female grey; sometimes the reverse 

 is the case. 



(15) Erebia p7'onoe ISisp. Halved. 



Right side male var. pitho Hb., left side female type. 



(16) Apatura ilia Schiff'. 



(a) Right side male ilia type, left side female ab. clytie (one 

 example). 



(b — d) Right side male ab. chjtie, left side female ilia type (three 

 examples). 



(e — g) Left side male ilia type, right side female ab. clytie (three 

 examples). 



{h) Left side male ab. clytie, right side female ilia (one example). 



These eight are all halved. 



{i) Left side male predominant, and where most clearly male in 

 shape and size it was coloured with ab. clytie; rest wholly female, ilia 

 type. 



(17) Gunoris rapae ah. Jlavescens. 



Left side female ah. jlavescens (yellowish brown). 

 Right side male and white in colour, with streak of yellow female 

 colour {ah. Jlavescens). Soc. Ent. Zurich, XVIII, No. 10, p. 80. 



(18) Limenitis populi. 



(a) Right side male ab. tremulae Esp., left side female type. 



(b) Right side male ab. tremulae Esp., left side female type. 



(c) Right side male ab. tremulae, left side female type. 



(19) Araschnia levana. 



Right forewing small male and \ar. prursa L. ; right hindwiiig and 

 both wings on left side large and ab. porima Ochs. 



(20) Aricia eumedon. 



Left side female type, right sidr male ah. fylgia Spangh. 



