Arctic Fritillary
Boloria chariclea helena


Home  -  Butterflies  -  Details

Scroll down for photos of IMMATURES
For other photos and information, click on your choice of


Female on lid of screen box used to house females while they oviposited. 

These butterflies would not lay in the box with a pansy inside. 
Female on lid of screen house

Female preferred ovipositing inside a brown paper lunch bag
with a few dead pansy stems in the bottom.
lunch bag preferred by ovipositing Boloria titania

A female laid this egg on a dead  pansy stem inside the paper bag
side view of ovum

Top view of the egg
top view of ovum

Females laid this egg and many more on the inside of a paper bag. 
This was definitely their preferred surface.

ovum on lunch bag

#6 removed from hibernation on 15 June and placed on  host plant
First Instar began feeding 18 June and photo taken on 20 June 2010
first instar on planifolia

#3 formed Second Instar on 23 June and photo taken 24 June 2010
2nd instar

#10 formed third instar on 26 June and photo taken 28 June 2010
3rd instar

#3 formed fourth instar on 2 July and photo taken on 2 July 2010
4th instar

#09 last instar
last instar

#9 fifth instar silked to form pupa on 6 July 2010
5th instar set to pupate

Pupa formed 11 July and photo taken 12 July 2010
pupa pupa

PHOTO DETAILS - ©Nicky Davis
LOCATION: Murdock Mountain, Uinta Mountains, Summit County, Utah  on 1 August 2009
GPS North, West West
Elevation 10, 298 feet.

When eggs hatched, I tried a limited number of larvae in  lidded  twin cups using  pansy leaves with a wet piece of paper towel in the bottom of the cups for hydration.  They were kept under a lamp 24 x 7.  A  couple of them nibbled at the leaves but then stopped and refused the leaves.  Later I tried two with the same set-up but using a Diamondleaf Willow, Salix planifolia  and they started  to feed and it.  Since it was too late in the year  to continue feeding them this plant, I put these two first instars in the fridge with the others.  I  over-wintered them at about 30 to 35 degrees  in a chiffon hammock in a solo cup with needle holes in  then placed in a cross-ventilated plastic sandwich container holding a solo cup full of water  to hydrate.

On 15 June 2010, when Salix planifolia was available, the larvae were removed from hibernation and placed on  the plant using the twin cup method.  They began to feed in three to four days.  After  eighteen days #9 formed a "J" and was set to pupate. The pupa formed on 11 July 2010 and the adult emerged 16 July 2010.  The rest of the larvae fed intermittently on the plant for the remainder of the summer but never formed a pupa.  They were finally set back into hibernation.

PHOTOS: See notations above each photo

Ovum:  6 TO 9 DAYS
Larva:  Over-winter as first instar and then these fed for about 18 days. 
Pupa:  Five days
Adult:  Unknown
Broods:  One brood every other year per "Butterflies of North America"  James A. Scott
Hibernation:  Overwinters as  first instar and as last instar
per "Butterflies of North America"  James A. Scott

NAME CHANGES -  Andy Warren - December 2010
In 1998, all North American Boloria "titania" became ssp. of Boloria "chariclea".  Recent DNA evidence (in press at the moment) corroborates the idea that we 
have only chariclea in North America, and no titania. Thus, your Boloria are  B. chariclea helena. Actually, there is a chance they are closest to the undescribed
NW Colorado segregate of B. chariclea ( but I haven't seen much material from the Uintas so really
can't say at this time.

Host Plants listed  in The Butterflies of North American by James A. Scott
Salix sp. (Alta), reticulata (S. Alaska & Churchill, Man.)S. artica, (Churchill); Polygonum (Europe), P. bistortoides (Wash.), viviparium, (N. Amer.); viola pallens (ont), V. adunca (Wyom); Dryas integrifolia (Greenland), Assoc. with Salix herbaceanin S.E. Can. & with Salix reticulata ssp. nivalis in Color, young larvae eat viola in lab in Color. per J. Scott).  Oviposit observed on vacinium Augustifolium (Ericaceae, Ont.) V. sp. (N. Que), & V. scoparium (Color.).  All possible hosts and on Trollius laxus (ranunculaceae, Colo.), a doubtful host.   As mentioned above these larvae used Diamondleaf Willow, Salix planifolia

Back to Top