314 



the Kearfott collection, one from Dr. W. T. M. Forbes from the 

 Murtfeldt collection at Cornell, and a single European specimen ob- 

 tained through Mr. Busck. The Cornell collection contains thirteen 

 other specimens from Miss Murtfeldt and the Fernald collection one. 



The life history of the species has been described in a number 

 of places. We reproduce the descriptions of larva and pupa given 

 by Porritt in the Ent. Mo. Mag. : 



Larva: "Length about half an inch, and of tolerable bulk in proportion: 

 body cylindrical and strongly attenuated towards the extremities; is consid- 

 erably retractile, and when at rest has a dumpy appearance; the head is small, 

 globular, smooth and shining, about the same width, or perhaps ver>- slightly 

 narrower, than the second segment ; the segmental divisions are distinctly 

 marked; the skin soft, but has a slightly rough appearance, and is sparingly, 

 though conspicuously, clothed with short hairs. 



"The ground-colour is a rather bright greenish-yellow, in some specimens 

 yellowish-green; the head is grayish, with the cheeks and mandibles shining 

 black. A very conspicuous purple stripe forms the medio-dorsal line, — from 

 the 2nd to 6th segment this stripe appears as composed of round purplish marks 

 joined at the segmental divisions, consequently the stripe is rather broad ; on 

 the remaining segments it is much narrower and more uniform, but equally 

 distinct ; the sub-dorsal and spiracular lines are yellow, but only faintly indi- 

 cated; the segmental divisions are also yellow. The ventral surface and prolegs 

 are uniformly dingy green or yellowish, according to the ground of the dorsal 

 surface ; legs black and shining. 



"The larvae were found feeding on wild rose, beneath the leaf overlapping 

 the rosebud, eating into the unexpanded bud from the side ; others, however, 

 were found feeding in similar positions at the tips of the young shoots. When 

 full-grown those that have been feeding on the buds affix themselves to the side 

 of the leaf close by the bud, and draw the leaf and the bud together by means 

 of a few silken threads; the others draw together in a similar way several 

 leaves at the end of the young shoot. 



"The pupa is about three-eighths to half-an-inch in len.gth ; pale green, 

 the wing-cases whitish,— the eye- antenna- and leg-cases, also the edging of the 

 wing cases, smoky-black." 



Tutt, in the Pterophorina of Britain, quotes these descriptions 

 with a very few additions. 



2. Platyptilia marmarodactyla Dyar. PI. XLI, fig. 9. PI. L, 



fig. 10. 

 Platvplilia marmarodaclyla Dyar, Bull. 52 U. S. N. M. 442, 1902. 



Id,, Proc. Ent. Soc. Wash. V, 296, 1903. 



Meyrick, Gen. Ins. C, 11, 1910. 



Id., Wagner's Lep. Cat. pars 17, 13, 1913. 



Barnes & McDunnough, Check List 150, 1917. 



