137 



Localities for this species are Selby, Buttercrambe 

 Moor, Huddersfield, Scarborough, York, Plymouth, Nun- 

 burnholme, Charnionth, Barnstaplc, Sherwood Forest, 

 Carlisle, Cambridge, Birch Wood, Bristol, West Wickham, 

 Lewes, Maidstone, Brighton, Killarney, Exeter, Dorking, 

 Lyndhurst, Newnham, Horndean, Preston, Manchester, 

 Pembury, Malvern, Stowmarket, Northleach, Tenterden, 

 Sudbury, Worthing. 



The situations where it is found are woods and lanes. 



The perfect insect appears in July. 



The caterpillar is green with prominences tipped with 

 red on the second, sixth, seventh, eighth, and ninth seg- 

 ments, a red line on the back on the tenth, eleventh, and 

 twelfth, and a yellowish line on the sides. 



The date of the appearance of the caterpillar is in 

 May and June, August and September. 



It feeds on the nut, the birch, the beech, &c. 



The chrysalis is enclosed in a cocoon among leaves. 



GEOMETRA SMARAGDAR1A. 



ESSEX EMERALD. 

 Plate XXII. Figure 1. 



THIS insect measures from a little over an inch and 

 a quarter to one and a half in width. 



Male : fore wings rich green inclining to dull yellow on 

 the upper margin; the first line is whitish and waved; 

 second line also white and waved; central spot white. 

 Hind wings green, paler at the inner corner. The antenna? 

 are slightly pectinated. 



