PLATE X. 



SAMIA COLUMBIA. 

 Fig. 1. — Larva, last molt. Joutel del. 



SAMIA RUBRA iCEANOTHI; CALIFORNICA). 



Larval stages. Joutel del. 

 Fig. 2. — First stage. 



Fig. 3. — Second stage. At end of .stage. 

 Fio. 4. — Third stage. "Some larvae are quite yellow instead of green, with dorsal tubercles of a deeper yellow; some 



are green like figure but have the dorsal tubercles bright red; some are without any black except spines 



at top of tubercles." (Joutel's notes.) 

 Fig. 5. — Fourth stage. "Some of the larvae have the black circle at base of blue tubercles wanting." (Joutel.) 



296 



