PSYCHINA 



[ZEUZUKA 



2. Zeuzeka, Latr. 



Antennae \, in $ strongly bipcctinatcd, apical third simple. 



Palpi with appressed scales. Tibiae rough-scaled. Hindwings : 



8 connected with 7 near beyond cell. 



Also principally inhabiting S. 



Asia, with one species reaching 



Europe. Larva feeding hi solid wood. 



1 . Z. pyrina, L. (aesculi, L.) 50-64 



mm. Thorax white, with two rows 



of blue -black spots. Forewings 



thinly scaled, white; numerous small 



scattered round or transverse -oval 



deep indigo-blue spots. Hindwings 



as forewings, but spots smaller and 



fainter. 



England to York, Ayr, rather 

 local and irregular ; 0. and S. 

 Europe, Asia Minor, N. Africa, N. America (perhaps intro- 

 duced) ; 6, 7. Larva yellow-whitish or dull yellowish, spots 

 large, black ; head and plates of 2 and 13 black-brown : in 

 stems of elm, apple, birch, etc. ; 6-5. 



3. ZYGAENIDAE. 



Ocelli present. Tongue developed. Antennae |, more or 

 less thickened above middle. Labial palpi moderate, ascend- 

 ing, rough-haired, terminal joint short, pointed. Hindwings : 

 8 connected by bar with middle of upper margin of cell. 



Rather an extensive family, but principally developed within 

 the tropics, many of the species being remarkable for their 

 brilliant colouring. The flight is diurnal, rather slow and 

 heavy. 



Ovum elongate -oval, finely ribbed or reticulated. Larva 

 short, stout, feeding exposed on plants. Pupa in a strong 

 elongate cocoon above ground. 



Tabulation of Genera. 

 Forewings with 8 and 9 stalked . .1. Zygakxa. 



,, 8 and 9 separate . . 2. Procris. 



1. Zygaena, F. 

 Head more or less rough -haired. Antennae gradually 



