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The perfect insect appears in January, February, 
March, and April, and also in September. 
The caterpillar is greyish-brown, spotted with orange 
marks and raised dots. 
It feeds on the elm and the oak 
The chrysalis is found under the ground. 
BISTON HIRTARIA. 
BRINDLED BEAUTY. 
Plate XIX. Figure 7. 
This insect measures one inch and three quarters or 
a little over in extent. 
Male: fore wings greenish grey-brown, the first line 
darker and widely shaded, the second of a similar colour 
enclosing a central line which runs through the central 
spot which is dark brown,but sometimes wanting. Hind 
wings paler but otherwise similar, with a few dark marks 
running in from the inner edge, and a dark central spot. 
The antennas are feathered but not quite to the tip. 
Female : fore wings more transparent, the lines often 
almost wanting. Hind wings also paler and more trans¬ 
parent and with more or less of a dull yellow tinge, and 
traces of two lines across. 
Localities for this species are Scarborough, Falmouth, 
Canterbury, Cambridge, Kingsbury, Stowmarket, Exeter, 
and London. 
The perfect insect appears in April. 
The caterpillar, which is very variable, is of a general 
greenish-brown colour, with a pale yellow interrupted line 
