—74— 



Seventh Larval Stage. — Head as before, but on the vertex 

 posteriorly is a paler patch; cervical spot black, bisected. Body 

 black, a mere trace of dorsal line on the first few segments; the 

 warts are brownish, and spiracles dirty white, otherwise as before. 

 Length 30 mm. 



Eighth Larval Stage. — Mature larva. Head pale brown, 

 but largely black in front. Mouth brownish, but the ends of the 

 jaws black; a few fine, dark hairs. The warts are arranged as fol- 

 lows: (i) a row on joints 5 to 12 in subdorsal space situated ante- 

 riorly; (2) subdorsal and (3) superstigmatal row, both replaced on 

 joint 2 by the cervical spot; (4) substigmatal row, the last three 

 coalesced on joint 13 in one large wart; (5) and (6) two rows in the 

 subventral space, there being only one row on joints 2 and 4 situated 

 intermediately, and the lower, slight on joint 13; (7) four small 

 warts on the venter of each of the legless segments. Body black, 

 the warts large and pale brown. Thoracic feet dark brown, the ab- 

 dominal dull crimson. Spiracles orange. • Hair bristly, black, 

 mixed slightly with brown. Length 45 to 50 mm. 



The duration of each stage was from eight to ten days. When 

 mature some of the larvae pupated at once, but others hibernated 

 for the space of three weeks before pupation, although the weather 

 was warm. 



Cocoon. — A thin netting of white silk, without any larval hairs, 

 which remain on the cast skin. The silk of the cocoon is strung 

 with little clear drops at the joinings of the threads. 



Pupa. — Head small; thorax rounded, a slight depression be- 

 hind it. Abdomen curved, the ventral and stigmatal sides straight. 

 Two rows of tufts of stout spines on the dorsum of the abdomen, 

 the upper situated anteriorly and the lower posteriorly on the seg- 

 ments, two more rows at the spiracles smaller, and others below 

 only slight; cremaster, two tufts of spiny hairs with their ends mi- 

 nutely hooked. Color, black; thorax and cases shiny and creased. 

 Abdomen dull, covered by a slight bloom, minutely punctured. 



Food- Plants. — Probably numerous. The larvce fed readily 

 on malva, clover, alfalfa, geranium, etc. 



LarvcC from Los Angeles Countv, Cal. 



The exertions of various well-known gentlemen point it that we 

 will at last have some active collecting of Lepidoptera clone again 

 in these United States. Professional collectors of the type of the 

 late Boll and Morrison, are sadly needed, and would find liberal 

 assistance for good work. B. Neumoegen. 



