Lesson plan
Sara Longwing
The Sara longwing (Heliconius sara) is a species of neotropical heliconiid butterfly found from Mexico to the Amazon Basin and southern Brazil. It is a colourful species: the dorsal wing surface is black with a large medial patch of metallic blue that is framed by two bands of white on the forewings. (This coloration is similar to that of Wallace's longwing, H. wallacei, whose range overlaps Sara's, but does not extend as far north.) The ventral wing surface is a dull brown to black with muted bands and small red spots on the proximal margin; total wingspan is 55–60 mm. Inhabiting rainforests, adults are commonly found among sparser secondary growth and along forest margins. They feed on the nectar of Hamelia, Lantana, Palicourea, and Psiguria plants. They reproduce continuously, with several generations produced every year. Sara longwings are one of several heliconiids exhibiting the unusual practice of pupal mating, in which adult males are attracted to female pupae via the latter's pheromones. The males compete for prime perch space close to the females' chrysalids, and successful suitors forcibly mate with the females immediately following their emergence. Alternatively, males may also patrol a territory in which they search for females that have already emerged. The adult stage has a lifespan of 2–3 months.…
Article summary
The Sara longwing (Heliconius sara) is a species of neotropical heliconiid butterfly found from Mexico to the Amazon Basin and southern Brazil. It is a colourful species: the dorsal wing surface is black with a large medial patch of metallic blue that is framed by two bands of white on the forewings. (This coloration is similar to that of Wallace's longwing, H. wallacei, whose range overlaps Sara's, but does not extend as far north.) The ventral wing surface is a dull brown to black with muted bands and small red spots on the proximal margin; total wingspan is 55–60 mm. Inhabiting rainforests, adults are commonly found among sparser secondary growth and along forest margins. They feed on the nectar of Hamelia, Lantana, Palicourea, and Psiguria plants. They reproduce continuously, with several generations produced every year. Sara longwings are one of several heliconiids exhibiting the unusual practice of pupal mating, in which adult males are attracted to female pupae via the latter's pheromones. The males compete for prime perch space close to the females' chrysalids, and successful suitors forcibly mate with the females immediately following their emergence. Alternatively, males may also patrol a territory in which they search for females that have already emerged. The adult stage has a lifespan of 2–3 months.…
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.