82 



I recently sent Prof. Fern aid a number of both forms of the 

 moth, which had been bred from apple during the last two 

 years, in the hope of determining whether Packard's oxycoccana 

 (of which Prof. Fernald possesses the type) is a synonym of 

 minuia. But Prof. F. replies (Dec. 27, 1886) that the Cinderella 

 specimens "do not approach the type of . oxycoccana any nearer 

 than many others which I have seen, so I am still in doubt about 

 oxycoccana.'" 



DESCRIPTION. 



Egg. — I have not seen the egg. Dr. Riley in the Index to the 

 Missouri Reports says: "The eggs of this species are very flat, 

 circular, and translucent, with a diameter of 0.7 mm., and are laid 

 singly on the under side of the leaf near the midrib." To this 

 Mr. Smith adds that the egg is "precisely like that of Anchylopera 

 vacciniana in form and color, but is very slightly larger." (U. S. 

 Dept. Agr., Div. of Ent., Bull. No. 4, p. 24.) 



Larva. — Length 12 mm. Body thickest just in front of the 

 middle, tapering very slightly both ways. Color pale honey- 

 yellow with a slight greenish tinge. Head and prothoracic shield 

 gamboge-yellow; former nearly as wide as latter. Mouth parts 

 darker. Ocelli on a nearly crescent-shaped black spot on either side 

 of head. Another dark spot at base of head laterally, and 

 sometimes a slight trace of a brown line connecting the two, so 

 that the whole resembles somewhat the letter S. Body sparsely 

 furnished with fine pale hairs arising from prominent polished 

 tubercles, the hairs varying in length, the longest being ab6ut 

 half as long as the body is wide. The four dorsal tubercles are 

 arranged in a trapezoid, with a deep crease between the anterior 

 and posterior pairs, the tubercles of the posterior pair being 

 farthest apart. Stigmata pale, on middle segments situated slightly 

 posterior to a line connecting the two lateral tubercles and nearest 

 the upper tubercle. Thoracic feet usually tipped with black. Just 

 below tip of dorsal portion of the anal segment and above the 

 anal opening is a nearly vertical plate bearing a series of rows of 

 peculiar blunt bristles, curving slightly upward, those above being 

 shorter than the lower ones, so that the whole forms a stiff brush. 

 (Possibly it is by means of this that the larva is enabled to "send 

 off its excrement to some distance when it defecates," as noted by 

 Mr. Trouvelot in Dr. Packard's article cited above.) 



Described from many specimens feeding on apple. 



Riley's description of the pupa is as follows: 



Pupa. — "Length 0.25-0.30 inch. Brown; characterized by a pe- 

 culiar rounded projection from front of head; by a little pointed 

 j)rominence at base of each antenna and each side of penultimate 

 abdominal joint; and by terminating in a broad suppressed piece 

 which produces two decurved hooks. Posterior rim of abdominal 

 joints rasi^ed dorsally, and a slight rasped dorsal ridge near the 



