DESCRIPTIVE NOTICES OF CONSPICUOUS SPECIES 213 



The perfect insect appears in July, and may some. 

 times be observed sitting on the trunks of trees, though 

 not easily distinguished from the lichen-covered bark ; 

 it comes occasionally to light, and is sometimes met 

 with on the wing at dusk. 



FAMILY IV. BOARMID^. 



BOARMIA EEPANDATA. THE MOTTLED 

 BEAUTY. 



This handsome insect is common, and generally 

 distributed throughout the country. 



The expansion of the wings varies from 1J to If inch. 

 All the wings are of a pale grey, dusted with brownish, 

 with some wavy transverse lines ; the fore-wings have a 

 dark central blotch, and the second dark transverse 

 line, not unlike an expanded W, terminates on the 

 inner margin beyond the middle ; between this and the 

 hind margin is a slender, wavy, pale band, which is also 

 continued along the hind- wings. 



The larva is ochreous-grey, spotted with black, with 

 whitish ochreous dorsal and spiraoular lines. It feeds 

 on birch, sloe, spindle, bramble, etc., in April and May. 



The perfect insect appears towards the middle of June 

 and in July, and is often seen sitting on the trunks of 

 trees in woods ; it may also be met with flying at dusk, 

 and comes occasionally to light. 



FAMILY VI. 



PSEUDOTERPNA CYTISARIA. THE GRASS 

 EMERALD. 



(Plate X., Fig. 1.) 



This insect is common, and generally distributed 



