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EMMELESIA ALBULARIA. 
GRASS RIVULET. 
Plate XXIX. Figure 3. 
This insect measures three quarters of au inch or a 
little over in expanse. 
Male : fore wings silvery whitish grey, crossed by 
several pale yellowish grey waved lines, with a central 
band beyond the middle, through which runs a pale grey 
line. Hind wings whitish grey, darker within the outer 
margin. 
Localities for this species are York, Scarborough, 
Glasgow, Isle of Man, Barnstaple, Kingsbury, Pembury, 
Carron, Ullswater, Birkenhead, Manchester, Oxford, 
Stirling, Edinburgh, Newcastle-on-Tyne. 
The situations where it is found are hedges in fields. 
The perfect insect appears in June, July, and the be¬ 
ginning of August. 
The caterpillar is whitish-green, with a broad dark 
green line along the back and another on the sides, head 
brown. 
The date of the appearance of the caterpillar is in 
August and September. 
It feeds on the seeds of the common yellow rattle 
(Rhinantkus crista-galii). 
The chrysalis is enclosed in a cocoon of earth. 
