384 



ISYCHE. 



[August, igo2 



brown, rounded at the ends ; subventral seg- 

 mentary spots connected by a snbobsolete 

 line. Later the dorsal stripe is giajisli 

 shaded, obsoletely resolved into several lines, 

 segmentarilv maculate. Sides pale graj, 

 very obsoletely lined, finely, like the dor- 

 sum. Still later the dorsal stripe fades to 

 obsolescence, leaving a slight shade and a 

 few dots. The subventral spots remain 

 separate. 



Stage III. Head rounded, bilobcd, thick, 

 llattish before ; gray white, flecked with 

 black, heavily so outwardly and each side of 

 the median suture in the vertical notch ; 

 width, .S mm. Dorsum to the tubercles dark 

 gray with a darker, geminate dorsal and 

 single subdorsal line (iandii); sides whit- 

 ish with three fine dark lines, the lower one 

 on tubercle iii ; a broader, but narrow, whit- 

 ish stigmatal space. Subventer and venter 

 like the sides with a number of fine, dark, 

 rather irregular lines and a row of rounded, 

 nearly black subventral segmentary patches. 

 Feet pale, dark dotted, stained at base by the 

 dark subventral patches. Tubercles in dis- 

 tinct black spots. Later more uniformly 

 hoary gray with subdorsal and stigmatal pale 

 lines and discreet subventral black spots. 



atage IV. Head 1.5 mm. wide, whitish 

 with large mottlings in dots of black, thickly 

 in the clypeus, those on the lobes somewhat 

 parallel to the clypeus, the dots subcon- 

 fluent in lines. Body smooth, uniform, mod- 

 erate. Dorsum dark gray, with about six 

 crinkled dotted pale lines on each side, of 

 which the subdorsal is straight and more 

 distinct than the others with the dark tuber- 

 cles i and ii above it. Stigmatal line white, 



yellow blotched behind the spiracles, diffuse 

 below, narrow, cut by the black tubercle iv. 

 Venter lighter gr.ay, finely lined in dark gray 

 and cinereous, the black subventral segmen- 

 tary patches rounded and distinct. Tubercles 

 in black spots. Feet dull reddish, black spot- 

 ted, the abdominal ones dark ; no shields. 



Stage V. (Brown form). Head rounded, 

 shallow bilobed, erect, free ; clypeus broadly 

 triangular, the paraclypeal pieces narrow, 

 parallel; lilaceous white, thickly, uniformly 

 covered with black dots, the pale spaces 

 between somewhat serpentine ; width 3 mm. 

 Bod}' normal, moderate, cylindrical, equal; 

 dorsum blackish gray, mottled dotted in 

 longitudinal lines, leaving obscurely a paler 

 dorsal and subdorsal line, dark shaded before 

 the black tubercles. Stigmatal line narrow, 

 distinct, pale yellow, dark yellow blotched at 

 the black rimmed spiracles. Venter lighter, 

 mottled dotted in black on a wood-brown 

 gray ground, the tubercles black. Feet lila- 

 ceous, dark mottled. Setae short, dark. 

 (Green form). Head green, faintly brown 

 mottled. Body green, dorsum faintly lined 

 in white, finely dotted, the subdorsal line the 

 most distinct. Stigmatal line white, narrow, 

 yellow blotched at the spiracles. Venter 

 more faintly white mottled lined. 



Food plant. A low, thorny shrub grow- 

 ing on the foot hills, 500 feet or more above 

 the plains {Ceauothiis fendleri). 



Eggs from $ $ taken near the summit of 

 the foot hills back of Golden, Colorado. 

 Eggs May 30th to June 27th from different 

 females ; mature larvae by July lOth. Pupa- 

 tion in the ground. 



A. SMITH & SONS, 146-148 WILLIAM ST., New York. 



»l.l>rFAI IllLUKS AM) IMl'OKTKltS OK 



GOODS FOH ENTOMOLOOiSTS, 



Klaeger and Carlsbad Insect Pins, Setting 



Boards, P'olding Nets, Locality and 

 Special Labels, Forceps, Slieet Cork, Etc. 

 Other articles are being added, Send fcr List. 



