106 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



to anal plate. Warts small, green, a central long hair; subventrally 

 spreading from wart VI. 



Stage VII. — "Head medium, flattened in front, finely wrinkled ; rosy 

 pink, becoming darker on the sides and merging into shining light 

 brown mottled with darker spots on top; neck, under side of head and 

 antennae light colored. Clypeus transversely wrinkled, light drab. 

 Body soft yellowish green. Two convergent black stripes on joint 2, 

 meeting on joint 3 a broad deep purplish brown dorsal stripe, which 

 extends across joints 3, 4, and 5, widening a little on joint 5; on joint 

 7 this stripe begins again, but after extending halfway across the seg- 

 ment it splits into two lighter dull purple stripes, which diverge slightly, 

 then run parallel, grow darker and approach each other, meeting on 

 joint 12, thus inclosing an elliptical area; the strijie becomes more pur- 

 ple in color and extends over the anal i)late. Tubercles slightly raised, 

 of the same color as the surface from which they arise, most of them 

 crowned with a short, dark, blunt bristle and surrounded with a few 

 long hairs. Ventral surface, especially about the legs, with a fine white 

 pubescence. Spiracles small, oval, black. Length, 27 mm.; breadth, 

 4.5 mm." (C P. Lounsbury, manuscript.) 



Width of head, 3.5 mm. Sparse pale secondary hairs subventrally. 

 Joint 12 is square above, sharply elevated, the anterior i)art of the 

 body not compressed, and apparently dislocated by the green joint 6. 



Cocoon. — Composed of "earth and silk." (Lounsbury.) 



Food plants. — Cranberry, deerberry. Azalea viscosa. 



ACRONYCTA QUADRATA Grote. 



(Plates III, iig. 1, adult; XVII, lig. 28, leg; XX, fig. 18, male genitalia.) 



Apatcla qKodrata Grote, Enll. Buff'. Hoc. Nat. Sci., 1874, II, p. 154* Papilio, 

 1883, III, p. 114. 



Ground color a light bluish ash gray, with a more or less well-defined 

 reddish-brown suffusion. Head and thorax without particular mark- 

 ings, except for a black line at the base of the wings. Primaries with 

 the markings fairly evident, but scarcely prominent. The basal line is 

 geminate, but very feebly marked on the costa only. Transverse ante- 

 rior line geminate, very evenly oblique outwardly. Transverse poste- 

 rior line single, black, a little shaded outwardly, preceded by a paler 

 shade inwardly and almost rigidly oblique from the costa to the hind 

 margin, practically i^arallel with the outer margin. The median shade 

 is brown, not prominent, outwardly bent over tbe costa between the 

 ordinary spots, and then inwardly oblique to the hind margin at or near 

 the transverse anterior line. The costal region usually more or less 

 brown shaded, and beyond the transverse posterior line the wing is 

 dusky, crossed by a pale, rather irregular subtermiual line. There is a 

 brown line at the base of the fringes, which is interrupted on the v^ins. 

 A prominent black basal streak extends across the transverse anterior 

 line. There is a small black streak in the submedian interspace between 



