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EUPITHECIA TRIPUXCTARIA. 

 Plate XXX. Figure 22. 



THIS insect expands to the width of one inch in fine 

 specimens. 



Male: fore wings dark grey, with lighter transverse 

 shades; a very distinct though interrupted white line on 

 the hind margin; in the lower corner is a large triangular 

 white spot. Central spot black, small, but distinct. Hind 

 wings paler grey, lighter near the body; central spot plain. 

 A distinct white spot in the lower corner; nerves powdered 

 with white. There is also a distinct white spot at the 

 juncture of the thorax and the body. 



Localities for this species are various parts of Suffolk, 

 Hertfordshire, and Derbyshire. 



The situations where it is found are woods in damp 

 shady places. 



The perfect insect appears in June. 



The caterpillar is pale yellow, more or less suffused with 

 rich brown. Along the back, which is greenish-yellow, is 

 a series of deep brown spots bordered on each side by a 

 slender line of the same colour, and below it a row of 

 slanting bright yellow stripes and deep brown blots. 

 Underneath, greenish-yellow. Central line deep brown; 

 on each side of it a much broader one of the same colour. 

 A variety has the ground colour yellowish-green, studded 

 with minute white raised spots, with a line along the back 

 of dusky brown spots connected by a central line of the 

 same colour, fading off on the hind segments, and conflu- 

 ent on the front ones; on each side is a series of dusky 

 blots. Central line beneath dusky, but interrupted. In 

 another, the line along the back, and that on each side of 



