13i 



PSYCHE. 



[November, 1900 



projecting, curved inward like claws ; grav, a 

 whitish ground peppered with black and 

 brown, heavily streaked on the sides with 

 dark as before. Tlie body is smooth, no 

 liunips, moderate, tlie thoracic feet flat and 

 appressed. Bark brown in appearance, lon- 

 gitudinally lined. Tubercles small, distinct, 

 slightly elevated, black. Cervical shield, 

 anal plate and anal leg shields colored like 

 tlie bodv but more whitish and mottled. 

 The lines are fine and numerous, crinkly, ill 

 defined. A subdorsal (tubercle ii) is black- 

 ish and rather distinctly limits the broad dor- 

 sal space which is filled with brown wa%y 

 marks ; lateral region with some rather 

 strong lines and the subventral region also 

 blackish. The lines tend to alternate, brown 

 and black but are much confused. Ground 

 color light gray, almost white, but largely 

 obscured. 



Stage \'III. Head flat and held out flat, 

 apex narrowly under joint 2 ; quadrate, cly- 

 peus centrally and tops of lobes a little bulg- 

 ing, paraclypeal pieces reaching nearly to 

 vertex; antennae large, projecting, a little 

 curved inward; gray shaded with brown, mot- 

 tled, epistoma and central part of paraclypeal 

 pieces whitish ; a diffuse luteous line on each 

 side of the median suture and on the sides of 

 the lobes, parallel to the markings on the 

 body; antennae pale ; width 3.3 mm. Body 

 slightly flattened, robust, only moderately 

 elongated, uniform, no lumps. Tubercles 

 elevated, conic, thorn-like, more distinct on 

 the posterior half of the body, but small 

 throughout. Thoracic feet curved, ap- 



pressed ; abdominal ones large, joint 13 with 

 a large triangidar plate produced behind into 

 thick subanal prongs. Anal plate triangular 

 with a central carina posteriorly that becomes 

 a groove anteriorly, the posterior edge of the 

 plate dentated by four tubercles. Setae short 

 and pointed, longer on the anal plate. Rich 

 brown and blackish, relieved by \vhite. 

 Ground white, almost entirely overlaid by 

 the other colors. Dorsal sp.ace mottled red- 

 brown and ocherous, an ill defined geminate 

 dorsal line, showing blackish on the thorax 

 and posteriorly at the ends of the segments. 

 A broad shaded blackish subdorsal band ; lat- 

 oral and stigmatal blackish bands, all ill de- 

 fined, mottled, the spaces between shaded 

 with ocherous and brown, with white show- 

 ing in spots on the posterior edges of seg- 

 ments. A broad subventral band, a narrow- 

 er one each side of the medio-ventral band, 

 all dark and like the others. Spaces between 

 similarly mottled. Venter of joint and 5 

 spots below the spiracles on the subventral 

 fold are lighter, yellow between the dark 

 bands which are not interrupted. Thoracic 

 feet whitish ; abdominal ones darkly mottled, 

 blackish gray. Lines continuous over tlie 

 shields. Spiracles gray, black rimmed. 



Food plant unknown. The larvae ate ma- 

 ple in preference to apple and weeds with 

 which they were supplied, and fed upon this 

 tree ; probably their native food plants are 

 various. Single brooded, eggs July 2Sth, 

 mature larvae the following June. Moth 

 from Summit, New Jersey. 



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