HYBERNIA DEFOLIARIA. 



MOTTLED UMBER. 

 Plate XXYII. Figure 13. 



THIS insect measures from a little under to a little over 

 an inch, and three quarters across. 



Male : fore wings pale dull yellowish, mottled with yel- 

 lowish-brown, and dusted with brown. The first line 

 much bent in an angle; second line bent in three angles, 

 and followed by a dark shade; central spot dark brown, 

 the outer margin spotted with brown. Hind wings dull 

 yellowish-grey dusted with darker, and with a small brown 

 central spot. 



The female is without wings. 



Localities for this widely distributed and rather common 

 species are York, Brighton, Darenth Wood, Marlow, Bow- 

 don, Exeter. 



The perfect insect appears in October and November. 



The caterpillar is reddish-brown on the back, with a 

 broad yellow line on the sides, and a red spot on each 

 segment. 



The date of the appearance of the caterpillar is in May 

 and June. 



It feeds on the blackthorn, the whitethorn, &c. 



The chrysalis is placed under the ground. 



