MEMOIRS OF TOE NATIONAL ACADEMY OP SCIENCES. 149 



"Second stiuje. — Head only very slifflitly depressed ou top; rouuded, green, uot sliining; jaws 

 reddisb ; a black stripe extends from the ocelli up tlie side of each lobe, running posteriorly, not 

 attaining the vertex and diminishing in width upward; width, 1.1 mm. Body smooth, with 

 minute dark set*; green; a faint stigmatal yellow line; all the feet except the anal ones are black. 



'•Third stage. — Head flattened before, clypeus small, depressed; median suture deep, but the 

 head not bilobed. Light green, not shining; a mottled brown band from jaw on each side, not 

 attaining the vertex, but narrowing upward, black at its extremities; ocelli black, jaws green, 

 tipped with brown ; width, 1.8 mm. Body smooth, the setiB minute, green, with four narrow yellow 

 bands on each side the lower substigmatal and bordered above narrowly with red-brown. 

 Thoracic feet blackish; abdominal ones black-tipped. The anal feet are uot elevated, and are 

 used in walking, but they are small, and joint 13 is tapering. 



"Fourth stage. — Head shaped as before, always large for the body, held out nearly flat, recalling 

 the position of the head in tilnphisia. The line on the side is red-brown, bordered on both sides 

 with yellow, and is continuous with the stigmatal line of the body in theuormal position. It does 

 uot attain the vertex of the head, terminating in a black point at each end. Jaws yellow, with 

 two small reddish lines. Later the sides of the clypeus are defined by a pale yellow line andthei-e 

 are two little yellow streaks at the vertex of each lobe continuing the lines on the body. Width, 

 2.6 mm. Body green, including the feet, which are only faintly tinged with blackish, the thoracic 

 ones most strongly so. Slender, tapering posteriorly, the last segment small, though the feet are 

 used in walking and are not elevated in the normal position of rest. No cervical shield nor anal 

 plate distinguishable. There is a broad, double, dorsal, and single, waved, subdorsal, whitish line; 

 a lateral row of yellowish dots, obsoletely connected into a waved line, and a distinct, straight, 

 narrow, stigmatal, yellow line, bordered above with red-brown. Spiracle on joint 2 large, black- 

 ringed, the others reddish. The larva eats away the substance of the leaf from a midrib or vein 

 which it leaves and rests upon with the head generally turned toward the base of the leaf. 



"Fifth stage. — Head full, rounded, a little higher than wide, flattened in front, the sutures not 

 deej); smooth, shining green, under the lens minutely granular; jaws yellow, with a broad central 

 reddish baud, and tipped with black; antenniTB white, the last joint reddish; a red-brown at joint 

 3 posteriorly; the second widens rapidly, reaching below the band over the ocelli, running 

 posteriorly to about the middle of the' side of the head, in line with the stigmatal band of the 

 body, bordered on both sides narrowly with yellow; ocelli black; labrum pale, a whitish line ou 

 each side of the clypeal sutures, and a faint double mark at the vertex, continuing the double 

 dorsal line of the body. Width, 1.2 mm. Body cylindrical, smooth, tapering posteriorly; joint 

 13 small, the last feet no larger than the others. Set;B not distinguishable. Dorsum leaf-green, 

 with a suffusion of white, a distinct white geminate dorsal line; a very faint, narrow, waved and 

 broken subdorsal one; a lateral row of yellowish dots, obsolete at the extremities, three on each 

 segment, the central one higher than the others; a distinct yellow stigmatal line bordered above 

 narrowly and irregularly with red brown. Spiracle on joint 2 large, white, black-ringed, the 

 others whitish and brown ringed. Subventral space clear green, unspotted. Thoracic feet pale, 

 testaceous, with a few black dots outwardly. 



"The larva seems a close ally of Nadata, but differs in habit, for it rests on the edge of the 

 leaf instead of the back, as Nadata does. In its normal position the clear green of the subventral 

 space joins nicely with the green of the leaf, and the distinct stigmatal line seems to represent an 

 edge or rib of the leaf. 



'• Cocoon. — Found beneath the surface of the earth; composed of silk mixed with grains of dirt; 

 elliptical, thin, complete; size, 2.") by 12 mm. 



'•JP»7Jrt.— Cylindrical, rounded at both ends, thickest through the fourth abdominal segment; 

 anal end almost flat; no cremastcr, but a low rounded prominence. Cases creased; abdomen 

 sparsely punctured; color dark mahogany brown, shining. Length, 21 mm.; width, 7 mm. 



"Food plant. — Oak (Quercus). 



"Larva- from Clinton County, N. Y."' (Dyar). 



Pitpa. — Body full and plump, but not very thick at the end; of the usual form and color; the 

 end of the abdomen very much rounded and obtuse, with no rudiment of a cremaster, only a 

 rounded knob. The segments slightly, not ileeply or coarsely, punctured. Length, IS mm. 



