124 



The date of the appearance of the caterpillar is in 

 September and October. 



It feeds on the oak, the plum, and other trees. 

 The chrysalis is found under the ground. 



BOARMIA ABIETARIA. 

 ENGRAILED. SATIN BEAUTY. 



Plate XX. Figure 6. 



THIS insect measures from a little under an inch and 

 three quarters to two inches in expanse. 



Male : fore wings blackish grey, the first line black and 

 curved, the second line also black, bent and indented. 

 Central spot black. Hind wings brownish at the base, 

 with an obscure spot near the centre, beyond which is an 

 indistinct curved line across, dark on its inner and light 

 on its outer edge. 



The female is paler, and the grey has a tinge of pale 

 orange. 



Localities for this species are Black Park, Lyndhurst, 

 Lower Guiting, Pembury, Wavendon, and Dumbarton. 



The situations where it is found are wooded places. 



The perfect insect appears at the beginning of July. 



The caterpillar is reddish-grey, the back paler and with 

 small prominences, below it an interrupted black line, and 

 on the sides, beneath it again, a yellowish one. 



The date of the appearance of the caterpillar is in 

 May and June. 



It feeds on the fir. 



The chrysalis is found under the ground. 



