ae | 
ERS 
THE GENERA OF BRITISH MOTHS. 
araised black collar. The wings are not dentate. The larve have sixteen legs, the first two pairs of pro-legs 
being rather short. The pupa is formed in a cocoon. There is only one British species. 
Ophiusa Pastinum (the Black-neck, No. 15) is a very widely-dispersed species, though far from common. 
The Caterpillar (No. 16) feeds on Astragalus glycyphyllus, and the Moth appears in July and August, in moist 
places in woods. Cambridge, Teignmouth, Lewes, York, and especially Scarborough, where it has occurred in 
abundance, are cited as localities in which it has been taken. 
The genus Ophiodes is distinguished from Ophiusa by the more robust character of the perfect insect, and 
the distinctness of the lines and stigmata of the anterior wings. In the preparatory stage it is distinguished by 
the flatness of the larva beneath, and by the forked tubercle on the back of the twelfth segment. The shell of 
the pupa is remarkably strong, and it is enclosed in a roughly formed cocoon among leaves. There is only one 
British species. 
Ophiodes Lunaris (the Lunar Double Stripe, No. 17) is one of the recent additions to our catalogue of 
British Moths. Its large size, and some other distinctive characters, have caused it to be assigned by some 
authors to another sub-family ; but on many accounts it finds its place best in its present location. The Caterpillar 
is described as elongate, and flattened beneath, like those of the Catocalaw, to the immediately following family of 
which, this character serves as a convenient link. It has sixteen legs, the two first pair of pro-legs being shorter 
than the others, which unites the genus naturally enough with the sub-family Ophiusidi. According to Sepp, the 
colour of the Caterpillar is a brownish grey, with a lateral line of a reddish tone. There are two black spots, 
edged with red, on the back of the sixth segment, and there is a forked tubercle on the twelfth segment, which 
isred. It feeds on the Oak. The first British specimen was taken in Hampshire, by Captain Chawner. 
