— 212 — 



discolored patches of the leaves, the green lateral part'of the body 

 joining nicely to the edge of the leaf, where the larva rests. From 

 below, however, it is readily seen, as it does not harmonize with the 

 pale under sides of the leaves, but as it is not likely to be looked at 

 from below, especially by birds, it would readily escape observation. 



The structure of the anal feet is interesting, as illustrating the 

 first stage in the development o{ stemapoda. They are rather long, 

 and, though furnished with hooks, the ends can be withdrawn, just 

 concealing the hooks as is constantly done by the larva without ap- 

 parent cause. A series might be made beginning with this species 

 through Heterocarnpa 2inicolor ■awA H. marthesia to Ceriiray^ 



Larvae from Dutchess County, N. Y. 



A NEW MORRISONIA. 



BY JOHN B. SMITH. 



Morrlsonia rileyana sp. nov. — Head, thorax and primaries, in ground color, 

 grayish white, with a ferruginous tinge. Palpi with a strong admixture of 

 brown scales in their clothing. A rusty red-brown, line crosses the front 

 below the antennae. Collar tipped with powdery black. Patagise black, 

 powdery. Thoracic tufts tipped with rusty. Primaries with a broad, black, 

 longitudinal shade, running beneath the median vein to t. p. line, then broad- 

 ening to outer margin, which it reaches below the apex. Along the inner 

 margin an irregular, narrow, whitish border only, is left. A ferruginous spot 

 is in this black shade in the terminal space. Above this black shade the cell 

 is filled with a rusty wash, in which the reniform is very faintly outlined by a 

 narrow ring of the ground color. T. a. line geminate, vague, diffuse; trace- 

 able in costal region only. T. p. line geminate at inception, very oblique 

 outwardly through costal region, becoming punctiform below and traceable 

 through the black shade by pale venular dots. Secondaries white basally, 

 with a broad powdery black margin outwardly; a vague discal lunule, an 

 outer line of venular dots and a black, interrupted terminal line. Beneath 

 white, with ferruginous, and a sparse black powdering; a common puncti- 

 form outer line, and a black discal spot, most distinct on secondaries. Ex- 

 pands 31 mm.; 1.25 inches. 



Hab. — Florida. 



I have seen two specimens of this species, one in Dr. Riley's 

 collection (coll. U. S. Nat. Museum), the locality of which I do not 

 remember, and one from Mrs. Slosson, taken in Florida. The in- 

 sect is a strongly marked one, of the same general type of macula- 

 tion as in the remaining species, but yet evidently distinct. The 

 male characters have not been examined. 



* See Packard, Proc. Boston Soc. Nat. Hist. vol. xxiv, p. 549. 



