Papilio brevicauda bretonensis (Short-tailed Swallowtail)
 
The Short-tailed Swallowtail is medium-sized (wingspan: 57 to 73 mm), with black, rounded wings crossed by a double row of yellow spots, often with an orange wash. On the hindwing, it has a red-orange eye-spot with a black centre. The tails, as indicated by the common name, are generally quite short.
Range: This swallowtail is found only in the Maritime Provinces and those parts of Quebec surrounding the Gulf of St. Lawrence west to St. Fulgence, Quebec. The occurence of the species at Cartwright, Labrador, which was questioned for many years, has recently been confirmed by two sources and there is another Labrador record at Northwest River Post. Brevicauda has never been recorded from Prince Edward Island, although it is regularly seen on the New Brunswick coast close to the island.The Short-tailed Swallowtail is widespread and commonly encountered in Newfoundland, particularly in gardens near its food plants. In the other parts of its range it tends to be local and uncommon.