CARADRININA 



[HYLOPHILA 



ciliated. Palpi short, ascending, with appressed scales. Thorax 

 thinly hairy beneath. Abdomen smooth-scaled. Tibiae smooth- 

 scaled. Forewings : 9 and 10 out of 8. Hind wings : 3 and 4 

 connate, 5 approximated to 4, 6 and 7 connate, 8 from middle 

 of cell. 



Two or three species found in temperate Asia are assigned to 

 the same genus. Larva without hair-tufts. Cocoon boat-shaped. 



1. H. bicolorana, Fuesl. (quercana, Schiff.) 40-45 mm. Head 

 green, face red beneath. Forewings bright green ; costal edge 

 pale yellowish ; first and second lines straight, oblique, parallel, 

 pale yellowish ; cilia white. Hindwings white. 



S. England to Hereford and Norfolk, E. and W. Ireland, not 

 uncommon ; C. and S. Europe, WC. Asia to N. Persia ; 7. 

 Larva green ; subdorsal line yellowish : on oak ; 5. 



14. HALIAS, Tr. 



Ocelli present. Antennae slightly fusi- 

 form, in simple. Palpi moder- 

 ately long, ascending, rough-haired. 

 Thorax hairy beneath. Abdomen 

 hairy towards base. Tibiae smooth- 

 scaled. Forewings : 9 and 10 out 

 of 8. Hindwings : 3 and 4 stalked, 

 5 approximated to 4, 6 and 7 

 connate, 8 from before middle of cell. 

 Perhaps confined to the single 

 species. Larva without hair-tufts. 

 Cocoon boat-shaped. Although show- 

 ing relationship to the group of 

 Callimorpha and the exotic family 



Head rough-haired. 



Neuration of Halias prasinana. 



Agaristidae (which also originate from Callimorpha), the actual 

 ancestry of this curious form is obscure. 



1. H. prasinana, L. 31-35 mm. Head green, sides of face 

 red. Antennae reddish. Forewings green, median area darker ; 

 costal edge posteriorly crimson ; first, second, and subterminal 

 lines snow-white, nearly straight, oblique, parallel, first and 

 second more or less suffused ; cilia crimson, more or less mixed 

 with yellow. Hindwings in $ light yellowish, in 9 white. 



Britain to Ross, N. and E. Ireland, common; N. and C. 

 Europe, N. Asia ; 5, 6. Larva light green, sprinkled with 

 yellow dots ; subdorsal line yellow ; anterior edge of 2 reddish : 

 on oak, beech, hazel, etc.; 7-9. The imago makes a peculiar 

 stridulatory noise when flying. 



