September 1S91.] 



PSYCHE. 



145 



turned purplish on head and dorsum, 

 stopped eating, and began wandering 

 about the tin for a place to spin. The 

 brown ones turned duller in color. 



Aug. 3. The}- had spun slight co- 

 coons. 



Aug. 7. They pupated. 



This account gives the dates of 

 moults, spinning and pupation of the 

 larvae first hatched. The others were 

 later in nil their changes, and the last 

 hatched did not grow so large or so 

 rapidly as the first. 



These larvae were very voracious, 

 and ate even the berries of the Lonicera 

 and the stems down to the woody twig. 

 They required food-supply three times 



a day, after the fourth moult, although 

 the tins were large and but thirteen 

 larvae were kept in one tin. 



They were very placid, slow, easy- 

 going larvae, bore any amount of hand- 

 ling, and were crawled over by each 

 other without any of the petulant 

 twitching and biting always shown, 

 under such circumstances, by larvae of 

 juglandis, astylus, abbotii, and other 

 Sphingidae. 



Out of the 1 20 larvae we undertook 

 to rear only two died, and those two 

 were from the last eggs laid and died in 

 moulting. 



Brooklixe, Mass. Aug. 8, iSgi. 



NOTES ON BOMBYCID LARVAE.— II. 



BY HARRISON G. DVAR, NEW YORK, N. Y 



Orgyia definita Packard. (For refer- 

 ences, see above, p. in; to which add:) 



1890. Leifert, 5th rep. U. S. ent. comm. 

 p. 561. 



First larval stage. Head pale testaceous, 

 darker on the vertex; ocelli black, mouth 

 brown; width 0.5 mm. Body pale whitish, 

 the subdorsal warts on joint 2 larger than 

 the rest, the dorsal warts blackish. Hair long, 

 pale whitish. There are no pencils nor 

 brush-tufts of hair and no retractile tuber- 

 cles on joints 10 and n. As the stage ad- 

 vances all the warts become dark. 



Tortricidia flavula Herrich-Schaffer. 



1854- Herr.-Sch., Sam. ausser. schmett, 

 ng- 1S5. 



Mature larva. By its shape allied to the 

 larva of Litkacodes fasciola H.-S. Head re- 

 tracted beneath joint 2, which is in turn re- 



tracted beneath joint 3; greenish testaceous, 

 mouth parts brown, ocelli black. Body el- 

 liptical, the sides sloping from a slight sub- 

 dorsal ridge, and contracted between joints 

 12 and 13, giving the last segment a square 

 appearance. Bright green, the dorsum 

 largely covered by a patch of salmon color 

 or purple brown bordered with a crimson 

 line and a yellow shade. It begins somewhat 

 broadly above the head on joint 3, narrows at 

 once to a dorsal band on joints 4 and 5, 

 widens twice, the second time passing down 

 to the subventral edge of the body at joint 8, 

 then narrows twice (this part of the outline 

 varies in different examples), and tapers to a 

 point at the anal extremity. The body is 

 covered very minutely with translucent gran- 

 ulations, the usual elliptical depressions 

 hardly distinct, smooth, whitish in the dorsal 

 patch, and containing a dorsal and lateral 

 row of blackish spots. Length 9 mm. 



