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Life Stages Diagram
The bars in this diagram show approximate times of the year when the butterfly will be present, in Nova Scotia, in its various life stages.

The dates shown for the adult stage are based on actual reports for Nova Scotia. The majority of reports will be within the period shown, but small numbers of adults will be earlier or later.

Dates for egg, larva and pupa are based on what information was available regarding time periods for eggs to develop, and typical time required for pupation. Like the adults, some records can be expected outside the date ranges we have shown. We caution that dates for these immature stages are mostly conjectural.

Short-tailed Swallowtail - Papilio brevicauda
[Short-tailed Swallowtail image]
Short-tailed Swallowtail - Carron Point, NB - 2010-06-18
Photo © Jim Edsall
What's this?
Status in Nova Scotia
Very rare. May not be present most years. There is one recent record (2011) in the Maritimes Butterfly Atlas, from Victoria County. The Maritimes Butterfly Atlas S-rank for this species is "S1:Extremely rare: May be especially vulnerable to extirpation (typically 5 or fewer occurrences or very few remaining individuals)".

Flight Period
First two weeks of July. Very few records.

Habitat
Coastal areas, in the presence of the larval foodplant.

Larval Foodplants
Has been found feeding on Scotch Lovage (Ligusticum scothicum) in Nova Scotia. Also reported to feed on Angelica (Angelica atropurpurea) and cow-parsnip (Heracleum spp.).

Similar Species in Nova Scotia
This species is similar to the Black Swallowtail, but has much shorter "tails". It is also very much less likely to be seen here.

Notes
This species is found only in the Atlantic Provinces and eastern Quebec. It is not known whether stable populations exist in Nova Scotia. It may be that this province is occasionally colonized by strays from Newfoundland. It was first reported from Kidston's Island near Baddeck, in 1936.

Further Reading


Short-tailed Swallowtail - Carron Point, NB, 2010-06-18
Short-tailed Swallowtail - Carron Point, NB - 2010-06-18
2010-06-18
Photo © Jim Edsall
Short-tailed Swallowtail - Green Point, Gros Morne National Park, NL, 2015-08-12
Short-tailed Swallowtail - Green Point, Gros Morne National Park, NL - 2015-08-12
2015-08-12
Photo © Doreen Wong