376 PTEROPHORUS SPJLODACTYLUS. 



or six radiating curved whitish bristles ; the minute 

 roundish spiracles are green, ringed with dark red, 

 and situate between the first and second side rows of 

 tubercles, which have nine or ten bristly hairs each. 



The pupa, which is attached to a leaf by the tip of 

 the tail, is nearly three-eighths of an inch long, mode- 

 rately slender, with the wings and antenna-cases in 

 strong relief, as are also the segments of the body, 

 which are deeply cut ; it bears tubercles and bristly 

 radiating hairs like the larva, those on the sides of the 

 abdomen shorter than on the back ; the wing-cases, 

 antennae, etc., are clothed with a fine and short bristly 

 pubescence ; the abdomen is tapered to the extremity 

 on the last three segments. The pupa is of a green 

 colour, and beyond the thoracic segments is marked 

 down the back on either side with an oblique broadish 

 dash of dark purplish-brown, forming almost a chevron 

 on the front part of each segment; the wing-covers 

 have raised rib-like longitudinal ridges, and the 

 antenna-cases are brownish ; the back is bluish-green 

 (having a faint trace of a whitish dorsal line), darker 

 than the belly, which is pale yellowish-green. (William 

 Buckler, September, 1878 ; Note Book III, 256.) 



On the 14th of August, 1880, I received eggs of 

 Pterophorus spilodactylus on Marrubium vulgare from 

 Dr. W. S. Riding, who was then collecting at Fresh- 

 water. 



The eggs were round, glossy, pale green. They 

 hatched on the 17th of August. 



The newly-emerged larvae were rather hairy, 

 yellowish-green, with brown head. (George T. 

 Porritt, 17th August, 1880; Note Book, August, 

 1880.) 



The larva of Aciptilia spilodactyla is six lines in 

 length, attenuated posteriorly from the fifth segment. 

 The head is smaller than the second segment; it is 

 green, with a yellowish tinge; the crown is slightly 

 freckled with brown ; the cheek spots are small, 

 brown ; the mandibles are brown. The ground colour 



