334 CxROTE AND ROBINSON. 



We figure this species which has been described by Drs. Boisduva] 

 and Packard, as above cited, owing our material to the kindness of 

 Dr. Boisduval, whose extensive collection contains a number of speci- 

 mens of the present and following species. 



2. Epicallia guttata. 



jUinrista guttata, Boisd., Lep. Cal. p. 48. (1852). 



Pleretes guttata, H-S., Lep. Exot. pp. 72, S3, fig. 404. (1858). 



Habitat. — California ! 



This species, of which we have examined several individuals, agree- 

 ing with Dr. Boisduval's description and Dr. Herrich-Schaffer's figure, 

 as above cited, seems to us to be properly regarded as a distinct form. 

 While very similarly sized with E. virginalis, it 3'^et appears somewhat 

 slenderer, and differs most obviously by the black secondaries with a 

 single yellow maculation near external margin before anal angle. This 

 genus is allied to Callimorpha, Latr. The casual resemblance which 

 E. guttata presents to Agarista, owing, perhaps, to its black uniguttate 

 .secondaries, induced its original describer to refer it erroneously to a 

 diiferent group from E. virginalis, with which it is structurally iden- 

 tical. 



ARCTIA, Schrank. 

 Arctia achaia, n. sp. (Plate 6, figs. 45 S > '^^ 9 •) 



% . — Head, between the eyes, pale yellowish buif. Labial palpi 

 brownish black ; eyes encircled with brownish black. Antennae rather 

 short, bipectinate, brownish black. "Collar" pale yellowish buff with 

 lateral black stripes behind the ajitennae. Patagia black, fringed 

 with pale vellowish buft'; a central thoracic black stripe ; the upper 

 surface of the thorax (including the patagia) may thus be described as 

 pale yellowish buff with three longitudinal black stripes. Beneath, the 

 under thoracic surface and legs are blackish brown ; the longer lateral 

 hairs below the insertion of the wings are yellowish. Abdomen yellow- 

 ish, the sides tinged with reddish towards the base; a broad central 

 black stripe; anus with lateral black spots; the segments beneath are 

 brownish black fringed with longer pale yellowish hairs, The body is 

 short and hirsute. 



Wings full ; primaries well produced at apices. Anterior wings black ; 

 the veins obsoletely covered with pale yellowish scales, as is the costal 

 ed'^e at base. A broad, pale yellowish buff", longitudinal stripe runs 

 from the base of the wing, at the center, to internal angle, where it is 

 furcate at the margin. A broader, similarly colored, sub-basal, trans- 

 verse band spreading on costal and internal margins. A mediati and 

 much narrower stripe, similarly colored and tapering to internal mar- 



