1952 ] Remington — Nearctic Lepidoptera 67 
so the suitability of Thalictrum as a foodplant was not 
tested. 
Our knowledge of foodplants for this genus is in a very 
confused state. A wide spectrum of plants has been re- 
corded ( e.g ., see Scudder, 1889, p. 587) as foodplants. 
However, information is lacking as to the plants on which 
larvae were successfully reared. From our experiences with 
B. toddi (Holland) and B. selene myrina (Cramer) in 
Connecticut, we believe that Viola spp. are the only suitable 
foodplants, but a large series of field observations shows 
that the females of both species characteristically avoid 
Viola for actual oviposition, although in many instances 
violets were found a few inches away. Most of the ova 
were fastened to dead twigs and grass ! I suspect that most, 
if not all, of the recorded “foodplants” of Boloria, other 
than Viola, actually represent oviposition observations 
rather than feeding records. It is doubted that Thalictrum 
is the food of B. eunomia alticola. 
12. Boloria selene tollandensis (B. & Benj.). At the 
type locality, in the great bogs at Tolland, Gilpin Co., Colo., 
on 22 July 1949 a female under observation laid an ovum 
on a dead Salix twig several inches above the ground and 
several feet from the nearest living Salix. The ovum was 
preserved before eclosion. I believe that the actual food- 
plants at Tolland are Viola spp. and that this female ex- 
hibited the same habit described above for B. selene myrina 
in Connecticut. 
13. Nymphalis milberti (Godt.). Several clusters of 
large larvae were found on 9 and 11 July 1949, on ex- 
tensively defoliated clumps of Urtica gracilis Ait. [R.C.R.] 
growing in a trash dump near Nederland (elev. 8000'), 
Boulder Co., Colo. On the same plants were single, con- 
cealed larvae of Vanessa atalanta. On 25 July many larvae 
of N. milberti of all sizes were found on stream-side clumps 
of Urtica at an elevation of 7200' in Boulder Canyon. In 
the same clumps were several full-grown larvae of V. 
atalanta and four solitary larvae of Polygonia satyrus. 
Many larvae and pupae of the Nederland N . milberti were 
preserved; the remainder completed development on U. 
