250 



PSYCHE. 



[August iS^S. 



below and behind iii ; iv + v distinct with a 

 small wart (iiib) behind; skin densely 

 covered with very short, white, club-tipped 

 secondary hairs. . Feet short. 



On the young leaves of a trailing plant 

 {Rhytichosia) at Miami, Fla. December. 



Pteropliorus elliotiiY^xr\^\A. — The moths 

 both in color and the structure of the geni- 

 talia correspond with Prof. Fernald's species 

 rather than with P. homodactylus Wlk ; yet I 

 doubt the specific distinctness of these forms. 

 It is easv to understand the occurrence of 

 two " plume " larvae on Eiipaloriiim, as they 

 have different habits; but there scarcely 

 seems room for a third one. Kellicott's de- 

 scription of homodactylus fits elliotii. 



Larva. Head pale, eye black; width i.g 

 mm. Body green, subdorsal and stigmatal 

 bands slender, whitish shades, the former 

 along warts i and ii ; a waved lateral line, bent 

 down behind tubercle iii and a narrow dorsal 

 line. Hair long, white, rather abundant. No 

 secondary hairs. Tubercles i and ii are dis- 

 tinct, but contiguous, in line ; a single hair 

 (iiia) behind andbelow iii ; a small wart of two 

 hairs (iiib) behind iv-|-v; vi and vii several 

 haired. Skin with sparse, minute, clear 

 granules. In the $ the dorsum of joint 9 is 

 all diffusely yellowish. 



Pupa. Fastened by cremaster, much re- 

 sembling the larva in appearance. Green 

 with the same marks as the larva ; the $ 

 sex-glands visible. The cases reach to the 

 middle of fourth abdominal segment, the leg 

 cases to the seventh. The hairs are roughly 

 arranged as in the larva, but the warts are 

 diffuse, scattered, and there is a median dor- 

 sal hair ; the hairs are also shorter. 



Exposed feeders on the young leaves of 

 Ettpaiorium at Van Cortlandt Park, New 

 York City. May. 



Pterophorus eupatorii Fernald. — Closely 

 allied to the preceding, the warts arranged 

 the same. Color the same, till the last stage 

 when the dorsum becomes all suffused with 

 reddish. The hairs are shorter than in P. 

 clliotii and the dorsal ones are blackish in- 



stead of white. There is a pale line along \ 



warts iv -|- v. Hairs pointed, slightly bar- 

 buled. I 



The larvae live on the under sides of the 

 leaves which they bend together with webby 

 silk. ' ' 



On Epilohium, Van Cortlandt Park, New 

 York City. i 



Pterophoi-us cretidactylus Fitch. — Head 

 rounded, higher than wide, partly retracted ; I 



green, ocelli black. Body a little thickest in 

 the middle, uniform green with a whitish 

 dorsal line. Warts round, concolorous, i and 

 ii near each other but separate, a small wart 1 



(iiia) below and behind iii; another (iiib) 1 



behind iv -)- v, vi and vii not large. Feet nor- 1 



mal, the abdominal ones slender, wider at ! 



the claspers. 



Pupa suspended by the cremaster, slender ; ; 



cases projecting over the abdomen half way 

 to the tip. Uniformly green, covered with 

 tufts of sparse radiating hairs, arranged 

 roughly as in the larvae. Length 11 mm., , 



width 2.5 mm. On aster*, Yosemite, Cal. I 



June. 



Synopsis of larvae here described. 



Warts i and ii united ; secondary hairs | 



present. . ' 



Hairs sticky glandular; on Solidago 



T. lobidactylus 

 Hairs not sticky; on Rubus 



O. tenuidactyliis \ 



Warts i and ii separate. | 



Secondarv hairs present ; on Rhynchosia I 



P. rhyiichosiae 

 No secondary hairs. 



A waved subdorsal line below wart ii ; 

 on Eupatorium. 



Hair long (3-3.5 min.) exposed feeding ' 



P. elliotii ' 



Hair short (1.6-1.S mm.) concealed 

 feeding P. eupatorii 



No waved subdorsal line; on aster , 



P. cretidactylus 



' This plant \va 



t determined with certainty. 



