382 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



black tipped, abdominal ones gray dotted. Tuljercles in small })lack 

 spots, ii of joints 12 and 13 larger. 



Stage V. — As before, but the ground color pale brown, the recticu- 

 lations black, the conspicuous tleck white; width 2.8 to 3.1 mm. 

 Dorsal space bordered b}' the nearly black waved subdorsal band, the 

 gray area above it segmentarily divided, tilled centrally with dark 

 dotted mottlings on a pale gray ground. Sides pale gray dotted, a 

 dark b;ind over the spiracles, and subventrally formed by the dottings 

 being darker. Seta? long, pale; spiracles dark. The shape is slender, 

 narrowing a little on joints 10 to 13; anal feet rather large, the rest 

 moderate, those of T and 8 smaller. Joint 12 verv little enlarged. 

 Shields concolorous. 



Stage TT.— Head rounded, bilohod, the apex under joint 2; lu-own, 

 heavily reticulate with black especially in a long transverse })atch 

 over the eye; epistoma and basal antennal joint wax white; width 3.7 

 mm. Body elongate, joint 13 tapering, cylindrical; feet short, pale. 

 Brown, shaded with gray and black. Dorsal space waved, narrowed 

 in the incisures; a broken, mottled, dorsal band and a distinct subdorsal 

 one, irregidar ai)out tubercle i, composed of ])lack mottlings on gray, 

 filled between with red dotting on white. A l)road, pale lateral space 

 like the dorsal one, narrowly centered with blacker dottings. A black 

 stigmatal band like the sulxlorsal one, diluted centrally; substigmatal 

 band again pale like the dorsal filling, the subventral area dark, but 

 not so dark as the dorsal marks. Tubercles, i to iv obscure, iv at the 

 upper angle of the spiracle; v and vi large, black. Leg shields whit- 

 ish, spiracles black; setie rather long and pale. The subdorsal and 

 lateral black ))ands join posteriorly on joints 12-13, making the anal 

 flap all black. On joint 11 a little white dash at tubercle ii and before 

 spiracle. 



Pupation in the ground. Larvie from Platte Canyon and Sedalia in 

 the foot hills, June 1 to 20, the imago the following March. 



Food plant — Oak, young leaves. 



SYNEDA HOWLANDII Grote. 



Eggs. — Spheroidal, the base slightly flattened, all slightly shining 

 yellowish white, subtranslucent; coarseh^ pitted, the pits in vertical 

 lines becoming less in number vertically by confluence, rounded, sub- 

 angular, well defined; the spaces between are broad and too much 

 rounded to look like reticulations. No ribs, the cross ridges as dis- 

 tinct as the vertical ones and like them; irregularly hexagonal. 

 Diameter, 0.9 mm. 



Stage I. — Head rounded, oblique, pale brow^nish with black ocelli 

 and brownish line from them backward; width O.-l mm. Body sordid 

 whitish, the food green; a diffuse brown lateral band between warts 

 i — ii and iv indistinctly composed of three lines. Shape elongate, 



