September 1892. J 



PSYCHE. 



325 



(touching the lateral band), narrower on 

 joints (j-12 and absent on joint 13. Long 

 plumed pencils on joints 2 and 12; brush- 

 like tufts of pale yellowish hair on joints 5-7, 

 with traces of another on joint 8; retractile 

 tubercles large, coral red. Hair thin, long 

 and black : warts pale grayish The mark- 

 ings of the mature larva are practically ac- 

 quired at this stage. 



Fourth stage. — Head and retractile tuber- 

 cles coral red ; cervical shield orange ; width 

 of head 1.6 mm. Body as before but the 

 brush-tufts are complete on joints 5 to S and 

 colored white or yellowish. 



Fifth stage. — Head, cervical shield and re- 

 tractile* tubercles coral red ; width of former 

 2.1mm. The ornamentation is as before; 

 the space between the dorsal and lateral 

 bands is yellow on joints 9-12. 



Sixth stage. — ( rj mature larva) Head dark 

 coral red, slightly shiny, ocelli a little darker, 

 jaws brownish ; width 2.5 mm. Cervical 

 shield and retractile tubercles coral red ; warts 

 pale yellow shaded with blackish, arranged 

 as in the other species of Orgyia; hair pencils 

 on joints 2 (two) and 12 (one) composed of 

 long, plumed, black hairs; four large. 

 white or yellow brush-like dorsal tufts on 

 joints 5-8. A broad velvety black dorsal 

 band enclosing the small yellow tubercles of 

 row 1 and the red retractile ones; on joints 

 3-8 the dorsum is all black except the warts; 

 a yellow subdorsal band ; lateral region dark 

 gray except the warts, joint 13 onlv shaded 

 with gray; a yellow substigmatal band; 

 a black stigmatal line ; venter gray and 

 legs pale yellow. Hair long, thin and 

 black. 



Seventh stage. — ($ larvae only.) As in 

 the previous stage; Avidth of head $.$ mm. 



Cocoon. — Double, composed of hair and 

 silk, but thin. 



$ pupa. — Cylindrical ; antenna and wing 

 cases prominent; abdomen tapering, the 

 cremaster flattened, its hooks fastened in the 

 silk of the cocoon. Color yellowish white 

 or more or less shaded with dark brown or 



black, the back covered with long hair and 

 three dorsal tufts of short scales. Length 13 

 mm. ; width 5 mm. 



? pupa. — Like the <J , but larger and 

 more robust. The wing cases are present, 

 6.5 mm. long, (though the wings of the ? 

 moth are but 2.5 mm. long) but the antenna 

 cases are small. 



Oedemasia salicis Hy. Edwards. 



Egg. — Hemispherical but rounded at base, 

 base flattened centrally; smooth slightly 

 shiny, under the microscope divided into 

 small hexagonal areas, their boundaries not 

 distinctly raised and hardly distinct enough 

 to form reticulations; diameter 0.8 mm. Laid 

 over 100 together on the under side of a 

 leaf. The little larva hatches by eating a 

 large hole in the top. 



Food plants. — Maple (Acer mac rophyllum) 

 and apple (Pyrus mains) and also, according 

 to Mr. Edwards, willow (Salix) and accord- 

 ing to Dr. Behr, walnut (Juglans). 



Schizura conspecta Hy. Edwards. 



1874 — Hy. Edw. , Proc. Cal. acad. sc, v. 5, 

 366. Heterocampa (?) 



18S2 — Grote, Check list, p. 19. Coelodasys. 



1891 — Smith. List lep., No. 131 1. Schizura. 



I found a larva, which may belong to this 

 species, in Yosemite, Cal., but it was unfort- 

 unately destroyed while I was attempting to 

 rear it. As there is no other species of 

 Schizura known from California, I give what 

 notes I was able to obtain under the above, 

 heading. 



Egg. — Spheroidal, flattened at base; dia- 

 meter 1.1 mm. Under the microscope it is 

 seen to be covered with very narrow slightly 

 elevated lines forming irregular pentagonal 

 or hexagonal reticulations, becoming very 

 small at the micropyle. Laid together on 

 the under side of a leaf. The little larva 

 hatches by eating a hole in the side. 



First larval stage.- — Head bilobed, rounded, 

 very shiny blackish brown, yellowish at the 

 vertex; ocelli black; a few hairs ; width 0.6 

 mm. Cervical shield with a pair of tubercles ; 

 joints 5 and 12 slightly enlarged dorsally; 



