North-American Sphinges and Bombyces. 311 
Sonoma County and Mendocino County, California, May 
18th to June 14th, also Rouge River, Oregon. 
Var. ochracea, Stretch, Zyg. & Bomb. p. 125; pl. v. 
fig. 21 (1871-73), but without pale veins. 
Rouge River, May 7th to June Ist. 
17. Arctia simplicior, sp. n. 
Possibly a well-marked variety of A. achaia, but appa- 
rently intermediate between that species and A. Saundersti : 
primaries as in var. ochracea, excepting that the veins are not 
cream-coloured (this, however, is a variable character in A. 
ochracea) : secondaries scarlet, paler along the abdominal 
border and at base; a small subbasal black spot in the cell, 
no other basal markings; but the lunate discocellular spot, 
three semicircular submarginal spots, and an irregular external 
border (completely divided, however, at the extremity of the 
first median branch) almost exactly as in Stretch’s fig. 19 of 
A. achaia. YWixpanse of wings 48 millim. 
Jacksonville. 
Only one female of this form was obtained. The almost 
entire absence of the large black discoidal patch and of the 
broad basiabdominal streak seems to bring this insect near to 
A. Saundersti and intermedia; the body, however, is coloured 
as in A. ochracea. 
18. Arctia phalerata, var. incompleta. 
Differs from typical examples in the absence of the sub- 
apical oblique cream-coloured stripe to complete the S-shaped 
marking on the disk of primaries. 
Washington. 
ANTARCTIA, Hiibn. 
19. Antarctia rubra. 
Antarctia rubra, Neumoegen, ‘“ Papilio,” p. 79 (1881). 
9. Mendocino Co., California, May 24th to June 14th. 
This, if rightly identified, must be the insect figured by 
Myr. Stretch, Zyg. & Bomb. pl. vii. fig. 11; but the ex- 
amples obtained by Lord Walsingham are rather larger, of a 
deeper reddish colour and with blacker secondaries than in 
the illustration, which seems to me a little undercoloured. 
20. Antarctia Walsinghami, sp. n. 
Allied to the preceding, but slightly smaller, the primaries 
