cahadiuna] CAEADRINIDAE 117 



England to York, local ; C. Europe ; 8. Larva yellowish- 

 green, speckled with yellow-whitish ; dorsal line yellowish-white, 

 ends rosy-tinged ; subdorsal of yellowish-white dots, interrupted ; 

 spiracular greenish-white ; head oehreous, speckled with red- 

 brown : on pear and plum ; 4, 5. 



2. 0. diffinis, L. 29-33 mm. Antennae in $ ciliated. Eore- 

 wings ferruginous-fuscous, becoming deep ferruginous towards 

 costa ; subbasal line white; first, second, and subtcrminal lines 

 pale, two former forming large subtriangular white spots on 

 costa ; median line darker fuscous. Hindwings fuscous, becom- 

 ing dark fuscous terminally. 



England to York, rather common ; C. and SW. Europe, 

 Asia Minor ; 7, 8. Larva green ; dorsal line ochreous-whitish ; 

 subdorsal irregular, whitish, darker-edged ; spiracular pale 

 yellow; dots ochreous-whitish; head very dark -brown: on 

 elm ; 5, 6. 



3. C. affinis, L. 27-29 mm. Antennae in $ ciliated. Fore- 

 wir.gs ferruginous-brown, somewhat paler-mixed ; first and 

 second lines pale, more whitish towards costa, interiorly darker- 

 edged, second abruptly bent ; median shade darker fuscous ; 

 orbicular and reniform obscurely palo, dark-centred ; subtcr- 

 minal line pale, anteriorly suffusedly dark-margined ; two or 

 throe blackish terminal dots about apex. Hindwings fuscous, 

 with a broad blackish terminal suffusion ; cilia yellow. 



England to York, S. Ireland, not uncommon ; C. and SW. 

 Europe ; 7, 8. Larva green ; dorsal and subdorsal lines white ; 

 spiracular yellowish-white, sometimes dark-edged above ; dots 

 white ; head yellowish-green : on elm ; 5, 6. 



4. C. trapezina, L. 27-35 mm. Antennae in S ciliated. 

 Forewings greyish-oclireous to reddish-ochreous, somewhat paler- 

 mixed ; first and second lines pale, internally dark-edged, nearly 

 approximated on dorsum ; median shade cloudy, darker ; orbicu- 

 lar sometimes obscurely pale ; reniform obscurely pale-edged, 

 lower end enclosing a blackish dot ; subterminal line pale, 

 anteriorly dark-edged. Hindwings fuscous, darker posteriorly, 

 costa and sometimes termen pale yellowish. 



Britain to Ross, Ireland, very common : C. Europe, Asia 

 Minor, N. Africa; 7, 8. Larva light green; dorsal and sub- 

 dorsal lines narrow, yellow-whitish; spiracular broad, yellow- 

 whitish, sometimes edged above with blackish - grey ; spots 

 white, black-centred ; head green : on oak, elm, Salix, etc., 

 but more commonly carnivorous, feeding on other caterpillars ; 

 5, 6. 



