794 PROCEEDINGS OF THE NATIONAL MUS-^EUM. vol. xxvn. 



each lobe; eye black, mouth brown. Body moderate, a little more 

 slender centralh', colorless transparent; no shields. Tubercles small, 

 elcA'ated on rounded wart areas, single, separate, no sul)primaries, iv 

 substigniatal posteriorly, ia and ib of the thorax separate, but more 

 approximate than iia and iib. Seta? pointed, still'. Feet normal, with 

 long- slender claspers. Male glands plainly visi])lo in joint 9, sordid 

 brow^n. Later the larva is slightly brown speckled; joints 4, T, and 11 

 subdorsall}', with distinct diffuse brown spots. 



Stage II. — Head whitish below, brown black over the vertex, mouth 

 large; width, 0.55 mm. Bodv short and robust, Arctiiform; tubercles 

 i and ii single, separate, i dorsad, iii with two hairs rather remote, 

 ivand v single, iv stigmatal posterior, v subventral, vi with two hairs, 

 a short hair on the colorless leg plate. Colorless, whitish, broadly 

 reticulate in brown, on joints -1, 7, and 11 segregated into a distinct 

 subdorsal patch, illy defining a dorsal and subdorsal line of ground 

 color. No distinct lines. No true warts, the base of the hair conicall}^ 

 enlarged, concolorous. Hairs pale, weak. 



The larvffi were not carried further. 



Family ARCTIID^. 



LEPTARCTIA CALIFORNIA Walker. 



Two larvse, bred b}^ Mr. Cockle from eggs that he had obtained. 

 The species was not common. No effort was made to take specimens, 

 as they showed no unusual characters. The larva is rather character- 

 istic by the long bush of hairs arising on the posterior segments. This 

 was especially conspicuous in some larvfe collected l)y Mr. A. W. 

 Hanham at Victoria, but was not at all noticealjle in specimens from 

 Golden, Colorado. The Kaslo larva' are intermediate, but nearer the 

 coast form. 



ESTIGMENE ACRiEA Drury. 



No specimens; it is in Mr. Cockle's collection. 



ISIA ISABELLA Smith and Abbot. 



No specimens; Mr. Cockle has taken it. 



DIACRISIA VIRGINICA Fabricius. 



Fourteen specimens. May 29, June 1, 3, 4, 7, 11, July 1. More could 

 have easil}^ been obtained, but the}^ did not differ in any respect from 

 the species as it occurs throughout North America. 



DIACRISIA KASLOA Dyar. 



Thirty-four specimens, May (Mr. Cockle), May 30, June 3, 4, 5, 12, 

 16, August 13 (Sandon, Mr. Currie). Nearly allied to the Calif ornian 

 vagans.^ but distinguished bj^ the bright red cplor of both sexes. Some 



