BRITISH AND ECROPEAN BUTTERFLIES AND MOTHS. 



175 



same colour, doubly banded with brownish. 

 The moth is found in Central Europe in May 

 and June, but is local and not common. The 

 larva is grey with a darker dorsal and curved 

 lateral line, beneath which it is lighter with 

 a few darker markings, and with four white 

 warts on the back of each segment. It feeds 

 on vetches in May and June. The pupa is 

 bright brown and is obtuse. 



T. craccae, W. V. The New Black Neck 

 Moth. Fore wings broader than in the last 

 species, which it, however, closely resembles, 

 bluish grey, browner in the marginal area, 

 with the transverse lines and central shade 

 o\\\y indicated by dark spots on the costa. The 

 submarginal line is very slender and is faint 

 towards the hind margins. The hind wings 

 are yellowish grey with a lighter basal half 

 and whitish fringes slightly brown through 

 the middle. It is local in Southern and 

 Central Europe in May and June and again 

 in August, but is not rare where it is found. 

 In England it has only been taken in Devon- 

 shire. The larva is greyish brown with a dark 

 brown, chain-like dorsal line and several sinu- 

 ated dark brown lines on the sides. It lives 

 on vetches in Summer and Autumn. The 

 pupa is enclosed in a slight cocoon between 

 leaves. 



FAMILY 



DELTOIDyE. 



Fore wings more or less broad, triangular 

 with rectangular or pointed, rarely rounded 

 apices, usually grey, but without the usual 

 TVoc/zw-markings, and the stigmata generally 

 only slightly indicated or entirely wanting. 

 The hind wings reach almost to the extremity 

 of the body. The abdomen is only rarely 

 tufted. The antennae and legs have often 

 markings upon them in the male. Palpi long, 

 often abnormally formed. They are mostly 

 small slender moths resembling the Tortriccs 

 in appearance. They fly in woods at night or 

 in the dusk, but many of them are on the wing 

 in the da3--time. The larvae are very various 

 and have twelve, fourteen or sixteen legs. 



Genus Aventia, Dup. 



Fore wings sharply pointed with a sickle- 

 shaped excision in front of the apex as far as 



nervure 4 ; hind wings rounded. Palpi promi- 

 nent, the two first joints erect, thickly hairy, 

 with the terminal joint short and curved. 

 Antennae setiform, shortly ciliated in the male. 

 Front and thorax with very short smooth hair. 

 The larvae have twelve legs, and are smooth 

 with a row of fleshy filaments above the legs. 

 They pupate in a light cocoon. The only 

 species is: — 



A. flexula, W. V. The Beautiful Hook- 

 tip. Fore wings slaty grey dusted with rust- 

 colour, with two fine straight, parallel, yellow- 

 ish transverse lines, edged with darker on 

 each side, both angulated on the costa, and 

 with two dark dots between them. There is 

 a fine curved submarginal line on a brown base, 

 small black dots in front of the dark submar- 

 ginal line and brown fringes, finely yellow at 

 the base. Hind wings lighter grey with a 

 straight transverse line. Head and thorax 

 rusty brown ; back and abdomen violet-grey. 

 It is widely distributed in fir-woods in Central 

 Europe in June and July, but is not common 

 anywhere. The moth sits with the wings 

 sloping. The larva is grey, spotted with green 

 and black. It lives from Autumn to Spring 

 on lichens growing on fir-trees. 



Genus Boletobia, Boisd. 



Wings broad with dentated liind margins, 

 the hind wings rounded ; all with uniform colour 

 and markings. Fore wings with nervure 2 

 towards the middle of the inner margin, 3 and 

 4 separated, 5 nearer 4 than 6, 7 and 8 rising 

 from a point at the tip of the appendicular 

 cell, 10 from its anterior margin, and 9 from 8. 

 Hind wings with nervure la running to the 

 middle of the inner margin, ib to the anal 

 angle, 3 and 4, 6 and 7 shortly stalked, 5 

 nearer to 4 than 6. Palpi coarsely scaled, 

 somewhat raised and projecting far beyond the 

 head, with an unusually long middle and 

 short pointed terminal joint. Proboscis spiral. 

 Antennae thick in the male, with long thin 

 cilias and a smooth end, those of the female 

 slightly serrated. Posterior tibiae with two 

 pairs of spurs in both sexes. Wings flat, when 

 at rest. The only species is : — 



B. fuliginaria, Linn. The Waved Black. 

 Fore wings brownish black with yellowish 

 markings. The two transverse lines are scarcely 



