840 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvu. 



greenish. Feet pale, with dark tubercular spots; no shields; tubercles 

 obscure; setfe fine brownish. 



Many larvae hibernated at this point. An interpolated stage also 

 occurred with width of head of 2.1 mm. 



Stage V. — Head rounded, bilobed, the apex in joint 2; shining red 

 brown, with dark brown reticulations and vertical bands, the bands 

 irregularl}^ bent inward above clypeus; width, 2.5 mm. Body mod- 

 erate, joint 12 slightly enlarged. Dead leaf brown, the ground pinkish 

 brown, finely penciled in black. A broad, diffuse lining surrounds the 

 dorsal line which is composed of two white dots posteriorly on the seg- 

 ments and a. line tracing elsewhere, and throws out a faint spur at 

 tubercle ii. The subdorsal space shows the ground color. Sides with 

 obscure oblique lines and outlinings of the substigmatal band in black. 

 Lines else obsolete, the substigmatal with scarcely any pale ground and 

 only a trace of white at its edges. Thoracic feet shining ))rown; shields 

 and abdominal feet concolorous with-bod}^; tubercles and setse obscure. 



Stage VI. — (Not observed.) 



MAMESTRA PURPURISSATA Grote, var. CRYDINA Dyar. 



Twenty-one specimens, June (Mr. Cockle), June 30, July 2, 8, 14, 

 18, 19, 27, 30, August 1, 5, 0, 13. This is a racial form, approaching 

 junclinacuJa Smith in some characters. Eggs were obtained from cap- 

 tive females l)efore the middle of July, and the resulting larvtv were 

 inclined to hibernate on August 15. However, some were forced to 

 the last stage. 



Egg. — Laid in a large patch; spheroidal, the top roughened l)y the 

 ribs. Ribs about 36 at the margin, diminishing to 11 at the micro- 

 pyle, large, coarse, low and rounded. Surface smooth, irregularl}^ 

 shagreened, traces of long cross strite between the ribs. ]Micropylar 

 rosette of pja'iform cells contrasted with the otherwise smooth surface; 

 pale yellow, later with a dark-brown ring and spot; diameter, 1.1 mm. 



Stage I. — Head rounded, l)ilobed, rather high, pale brown, spotted 

 thickly with darker brown and a pale streak above. Body slender, 

 moderate; joint 12 slightly enlarged, the feet of joints 7 and 8 very 

 small. No cervical shield, but distinct blackish leg shields. Tuber- 

 cles round, black; not black on the shield, which has dusky spots behind. 

 Body white, with faint ocherous l)rown stripes, subdorsal (between 

 tubercles i and ii), lateral, lower lateral (tubercle iii); substigmatal 

 band broadl}^ white pigmented; subventer less whitish; setie rather 

 long, black; thoracic feet smok,y ; anal feet. Avith white stripe outwardly. 



Stage II. — Head rounded, the apex in joint 2, smok}' luteous, with 

 dark spots on the tubercles; width. 0.0 nun. Body with a green dilu- 

 tion in the dorsal space each side of the pale dorsal line, the rest of the 

 ground dark vinous brown. Subdorsal line whitish, lateral fainter; 

 substigmatal broad and bright white, venter paler. Feet lijile, with 



