204 



PSYCHE. 



[ [amiary 1S02 



Fifth stage. Head shining black with a 

 Faint brownish tinge, labrum and antennae 

 pale yellow; width 2.1-2.6 mm. The body 

 is colored as in the previous stage but the 

 black shade surrounding the brush tufts fills 

 in nearly all the dorsal space; hair pencils 

 from joints 2 and 12, 3 mm. long. Spiracles 

 black, a white dot posterior to each. The 

 arrangement of the warts is as follows: row 



1 anteriorly next to dorsal line on joints 5- 

 12; 2 subdorsal; 3 suprastigmatal ; [4 absent, 

 represented by the white dots posterior to 

 the spiracles;] 5 subventral ; 6 also subven- 

 tral, just above the bases of the legs and a 

 little posterior to the other warts ; and row 

 7 consists of four small warts on the venter 

 of the legless segments. On joint 2 warts 



2 and 3 are on the cervical shield, small; 4 

 is large, subdorsal; 5 also large, lateral. On 

 joints 3 and 4 all are present but 1 and moved 

 up somewhat. On joint 13 there are but 

 three warts, the upper two large besides very 

 minute ones on the anal plate. The brush 

 tufts arise from wart 1 and the upper part 

 of 2. 



Sixth stage (all $ and some 2 mature 

 larvae). Head brown-black, shiny, clypeus 

 pale centrally, labrum and antennae white ; 

 width, 3.1-3 6 mm. Body velvety black, a 

 broken buff subdorsal line on joints 3 and 4, 

 represented by buff or yellow spots on joints 

 5 and 8-1 1 a little farther down the sides; a 

 similar smaller subventral row running the 

 whole length. Cervical shield pale, shaded 

 with black, its warts crimson. The warts of 

 rows 1-5 are fine dark crimson, large, the 

 hair long and black. Plumed pencils black, 

 7.5 mm. long, showing a marked difference 

 from the previous stage. Retractile tuber- 

 cles crimson, a little brighter than the warts. 

 Brush tufts large, ail unicolorous, brownish 

 silver gray, darker along the crest, showing 

 another marked difference. Feet reddish, 

 black at their bases. As the stage advances 

 the brush tufts become black centrally, the 

 side hairs remaining white. 



Seventh stage (some, $ larvae only). Head 



round, brownish black, shinv, a pinkish 

 white line above the mouth ; antennae red- 

 dish, ocherous at base; width 4 mm. Body 

 dark gray, black dorsally, a broken subdor- 

 sal band nearly covering the dorsum on 

 joints 3 and 4 and a broken substigmatal 

 band. All the warts of rows 1, 2, 3 and 5, 

 retractile tubercles and cervical shield fine 

 crimson, the tubercles a little brighter. The 

 warts of row 4 are present but very small, 

 situated back of the spiracles and colored 

 ocher yellow. 



Cocoon. Oval, regular, nearly opaque, 

 composed of hair and silk. 



$ pupa. Robust; wing and antenna-cases 

 prominent; abdomen tapering, cremaster 

 long, terminating in minute hooks; sparsely 

 covered with rather short fine whitish hairs. 

 Color rather light brown; spiracles black. 

 Length 12 mm.; width 5 mm. 



$ pupa. Very large and robust, thorax 

 and cases small, wing-cases of moderate size ; 

 abdomen nearly cylindrical, cremaster flat- 

 tened, ending in many hooks. Smooth very 

 shiny pale brown, with a few sparsely dis- 

 tributed pale hairs; spiracles black. Length 

 22 mm. ; width of abdomen 9 mm., of thorax 

 4.5 mm. 



Food plants. Species of oak (Quercus 

 kelloggii and «^>. chrysolepis) also wild coffee 

 (Rhamnus calif omica) and willow (Salix). 



Larvae from Yosemite, Cal. 



$ moth. Primaries dark gray, whitish 

 scales thickly scattered on a nearly black 

 ground; an obscure black basal line and a 

 brownish patch outside this, covering the 

 lower half of the wing before the t. a. line, 

 edged above by a black line and narrowly 

 separated from the t. a. line. Transverse 

 anterior line broad, black, gently waved and 

 slightly produced outwardly above m. vein; 

 a reniform discal spot, outlined in black, 

 filled in with a yellowish white shade and 

 narrowly bordered with whitish. Transverse 

 posteriorline starting from costa almost above 

 reniform, passing outward and around the spot 

 and continuing to internal margin parallel 



