160 LEIOOAMPA DICMA. 



tinge, and was more defined ; on 7 — 10, the transverse 

 brown patch edged behind with a black line) ; the places 

 of the usual dots marked with tiny hairs. This variety 

 was wonderfully like a twig of aspen, on the leaves of 

 which the larvaB were feeding. The other variety was 

 opaque yellow-green on the back, fuller green on the 

 side, the swelling on 3 bluish-green, on 6 — 9 faint 

 brownish transverse marks, the hump on 12 whitish 

 with a fine transverse line of dark green, a strong 

 sub-spiracular line of yellow, the spiracles surrounded 

 with pale brownish ; the head green, slightly freckled 

 with brownish ; the belly green with yellow middle ; 

 thoracic legs brownish, ventral prolegs green, tinged 

 with brown outside. The larva makes a large cocoon 

 of grey silk, well covered with loose earth ; the pupa 

 which I have measured is 20 mm. long, blunt at the 

 head, cylindrical, the waist a little sunk at the sides, 

 the abdomen not diminishing much in bulk, three of 

 the abdominal divisions cut deeply, the last segment 

 conical but rounded, with no spike, but with two small 

 diverging sharp points set wide apart ; the wing-cases 

 shagreened, the rest of the skin glossy ; the colour deep 

 mahogany-brown, darker on the head and thorax. (J. 

 H., 29, 12, 86.) 



LEIOOAMPA DICT^IOIDES. 



Plate XXXV, fig. 2. 



Mr. Buckler figured this species September 15th, 

 1860, August 28th, 1868, and July 26th, 1869 ; from 

 this last example he bred the moth October 11th, 

 1869; all the larvas were from birch. In 1860, 

 September 11th, I had larvaB given me, and again 

 August 6th, 1868, but I never got one to complete its 

 final change; in fact, I have formed the conclusion 

 that this species is not easy to rear. In this country 

 the usual time of the flight of the moth is the month 

 of June and again in August and September. In 1886, 



