312 | Mr. A. G. Butler on some 
bright crimson with a small black spot at the end of the cell; 
fringes slightly paler than the ground-colour: secondaries 
deep rose-red with scarlet veins, the discoidal cell and two 
interno-median streaks irrorated with grey ; three almost con- 
fluent apical submarginal blackish spots and a squamose 
blackish submarginal streak in continuation of these spots: 
thorax bright red; antenne scarlet; palpi scarlet; abdo- 
men paler red; legs scarlet above, but yellowish in the 
central line below; pectus yellow, with tufts of orange-red 
hairs; venter bright orange-yellow, red at the sides. Wings 
below bright rose-red, with the costal borders and veins 
brilliant scarlet ; asmall black spot at the end of each discoidal 
cell. Expanse of wings 41 millim. 
Rouge River, Oregon. 
Only one example of this exceedingly beautiful species was 
obtained. I cannot believe it to be a variety of the preceding ; 
it certainly has a greater claim to specific rank. | 
LEPTARCTIA, Stretch. 
Mr. Stretch recognizes three species, L. decia, lena, and 
dimidiata, which he distinguishes by the coloration of the 
secondaries ; the fine series obtained by Lord Walsingham 
shows that £. dimidiata belongs to the two divisions of L. 
decia and EL. lena, since the females always show a trace and 
sometimes a well-marked band of ochreous or red. As the 
broad-banded form is exceptional, however, it may perhaps 
represent another variety. 
Judging from the series before me I cannot hesitate to 
regard the whole as referable to one extremely variable species, 
consisting of eight fairly marked varieties; and as four of 
these have already received distinctive names, and, moreover, 
as the differences in pattern and coloration appear in both sexes, 
I shall not hesitate to give varietal names to the remaining 
four, so as to enable lepidopterists to speak of them without 
the necessity of describing in each case the form to which they 
peceter: 
21. Leptarctia californie. 
Var. 1. Leptarctia Stretchit, var. n. 
3. Leptarctia dinudiata, var., Stretch, Zyg. & Bomb. pl. v. fig. 9 
(1871-73). 
?. Band of primaries buff-coloured, a spot of the same 
colour at base, and a second towards the base of internal;bor- 
der: secondaries with an ill-defined streak of orange scales 
across the radia! and median interspaces, a spot of the same 
