Compton Tortoiseshell

Fascinating facts about the Compton Tortoiseshell

• The butterfly is correctly named Nymphalis l-album because the earlier label N. vaualbum never received a formal description or type specimen, rendering it a nomen nudum. This lack of a valid original description was uncovered when researchers examined the historic record. As a result the name l-album has taxonomic priority over the widely used vaualbum. The correction follows the rules that give precedence to the first properly published name.
• On the underside of the hindwing a distinctive V-shaped white mark sits beside the cell at S4, a feature that is especially prominent in males. In some individuals this V is altered, appearing as a dash, an L, a C or a J, or it may be reduced to only a few white scales or disappear entirely. This variability is shared with the related Polygonia c-album, which is why the species earned the nickname "false comma".
• It inhabits both deciduous and coniferous forests throughout a vast Northern Hemisphere belt, from central Asia across Alaska and Canada to New England and down to North Carolina and Missouri. They rarely migrate to Newfoundland and Labrador, Nebraska, and Florida.
• The adult female deposits a cluster of eggs on a suitable host plant, ensuring the offspring start life in close proximity. When the eggs hatch, the tiny caterpillars remain side-by-side, feeding together on the same foliage until they are ready to pupate. This communal feeding stage lasts throughout the summer, after which the single generation of adults emerges and can be seen on the wing from July to November.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Compton Tortoiseshell

As the Compton Tortoiseshell flutters through the frosty mornings, its delicate wings beat with a hypnotic rhythm, like a whispered secret carried on the breeze. With each gentle stroke, the intricate patterns of orange, black, and yellow dance across its wings, a mesmerizing display of natural artistry that belies the resilience of this hardy creature. As it alights upon a sun-kissed branch, the Compton Tortoiseshell's remarkable adaptability is revealed, its beauty woven into the very fabric of the winter landscape.

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