Mar. 



1900.] Dvar: On Larv/e of the Genus Arctia 43 



the dorsal stripe red, yellowish and broken in the incisures ; head and 

 hair black. There has been no verification of this figure ; and larvae 

 that I got in Florida, which I thought -were placenfia, -were quite dif- 

 ferent. However I did not breed them, and the matter is still open. 



Western Species. 



Abdomen as usual with a row of dots or a band. 

 Moderate sized species. Small species. 



15 ornata Pack. 21. convinoides SxRECK. 



16. obliteratd Str. 22. blakei Grt. 



17. Jievadensis G. & R. 



18. superba SxR. 



19. tvilliamsii Dodge. 



20. favorita Neum. 



Abdomen nearly immaculate with a heavy black tip. 

 23. proximo Guer. [docta Walk., aiitholea Bd. ) 



15. 6^/7/(7/(;? has two forms, very distinct at first sight, but intergrading. 

 The typical ornata is without linings on the veins, and occurs sparingly 

 in the southern part of the range of that species. I have it from San 

 Francisco, Lake county and Mariposa county, California. The species 

 as a whole ranges along the west coast from California to British Co- 

 lumbia. I do not know the exact limits of distribution. The variety 

 coiuplicata is dominant in Portland, Oregon. This species is the 

 western representative of anna, from which it differs in the greater 

 number of bands on the forewings and the tendency to orange of the 

 hind wings. The spotting of the latter also runs somewhat differently. 

 In the occasional disappearance of the vein linings, it resembles 

 oithona-pJiyllira as already noted. 



The larva (form achaia) has been described by Stretch, who makes 

 it black with a double, somewhat waved, dull reddish dorsal line ; feet 

 flesh color ; hair light brown, soft and silky. My larvae (from orna/a, 

 Psyche, vi, 380-^=) were finally black with the subventral hairs reddish 

 and no lines. They did not reach maturity, and I do not know 

 Avhether they would have appeared like Stretch's or not ; I think not. 



This species will have to be gone over again ; perhaps more than 

 once. 



*I described these as blakei [jievadeitsis), mistaking the female (?;'««/« for a 

 moth of the group without the vein linings. Subsequent specimens from the same 

 locality give the hint as to what the species really was. 



