1 02 my. A. MILES MOSS OK" THE 



heavily outlined with blacli, especially on the upper side. Numerous small irregular 

 black dots mark the first half of the larva, especially on the dorsal area of the now 

 considerably swollen leg-segments. The latter half is similarly sprinkled with white 

 dots. The alimentary duct is clearly visible as a translucent, dark green, medio-dorsal 

 line, extending from segment 5 to 12, and the former tail is now represented merely 

 by a flabby, limp appendage of bright viridian green, which with increasing growth 

 appears to become absorbed into nothing more than a rounded hump. The anal flap 

 is light bordered, and the ventral area and claspers become a deeper green. 

 Fourth indar (fig. c). JSio essential diff'erences from final stage. 

 Final instar (figs, d, c,f). Variable in tone, colour, and intensity of markings. 

 The former \aries from the liglit ochreous green of the ripe muscatel, when all the 

 markings are ill-defined, or the grass-green of a fresh vine-leaf (the commonest form), 

 to an unnatural blackish green (once in captivity). It also varies from pink-brown to 

 deep maroon, or more rarely olive. Dorsal area often very light, ventral dull and 

 heavy. The texture of the skin is extremely soft and velvety. Head with segments 

 2 and 3 retracted when at rest in a sphinx-like attitude, and when viewed sideways 

 completely hidden within segment 4, which is consequently much swollen. Five 

 oblique white stripes, rarely a sixtli on segment 6, now adorn the sides of segments 

 11 to 7 inclusive ; these are more or less outlined in black or brown, enclose faint 

 ochreous spiracles, and in regard to length, breadth, and general prominence are in 

 diminishing ratio towards the head. The head, legs, and claspers partake of the 

 general ground-colour of the individual specimen, the dorsal duct and scattered black 

 and Avhite dots remain as in the previous instar, and a reduced rounded hump on 

 segment 12 marks the position of the usual tail or caudal horn. 



Pcpa(P1. XV. fig. m). — Warm red-brown and moderately glazed. Elegant in form, 

 and possessed of a very long, sharp, strongly curved cremaster. 



419. Pholus FASCiATUS. (Plates XL ff-i? ; XV. /.) 

 K. & J. p. 494. 



General Disfrihution. — Neotropical Region, extending southward to Patagonia, and 

 northward into the Nearctic Region, occasionally wandering to New England. 



A fairly common species in the larval condition on the seaboard, but never obtained 

 from the Interior. Tlie moth, like_P. v. vitis, appears to be little attracted to light, and 

 was only once taken at rest on a street lamp in Lima. The larva often strips a whole 

 plant of Juss/eua anffustrfolia, associated with marshy ground, ditches, and acequias, 

 and eats the more tender parts of the stems as well as the leaves. It is rather subject 

 to the attacks of a dipterous parasite, probably identical wdth that which afifects the 

 genus J'rotojtarce. 



Frass very big, long, and black, the regular hexagonal formation being somewhat 



