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Photinus cookii

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Photinus cookii
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Lampyridae
Genus: Photinus
Species:
P. cookii
Binomial name
Photinus cookii
Green, 1956

Photinus cookii, or Cook's firefly[2] is a species of day-active firefly in the beetle family Lampyridae.[3] It is found in North America in the Eastern USA, including Florida and Texas.[4][5][6]

Description

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P. cookii is a small beetle, with adults measuring 5–7 mm (0.2–0.3 in) long. The wing covers, or elytra, are dark, with wide, light-colored side margins. The head shield, or pronotum, is pale yellow with a dark bar in the center, reaching from the top of the pronotum to the base. The body has short hairs, which are visible with a microscope. P. cookii does not have working lanterns on its abdomen, although there may be small vestigial lanterns or light patches on the final 2 segments. The males and the females are similar in appearance. [2][7]

Etymology

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The genus name Photinus is from the Greek word for shining or bright.[8] The species was first described by John Wagener Green in 1956.[7] The species is named as an honorific for Mr. Carl Cook, who had collected the holotype male and other specimens in Carilhope, Kentucky, 11-VII-1946. The species name is therefore noun in genitive case.

Several years later Lloyd (1966) [9] published an overview of Photinus in USA, and wrote the name as "Photinus cooki" (i.e. altering the ending to a single "i" as "cooki"), perhaps considering it as a correction; but per nomenclatural regulations in ICZN 31.1, the original spelling of "cookii" is admissible and therefore it is subsequently retained.

Life Cycle

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Beetles such as P. cookii go through four life stages: egg, larva, pupa, and adult. Photinus fireflies spend the majority of their lives as larvae, which are bioluminescent and likely live below the soil surface, eating snails, worms, and other soft-bodied invertebrates. Adult P. cookii appear in summer, in June and July.[1][2]

Behavior

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P. cookii is a non-flashing firefly, active during the day rather than at night. It is believed that these fireflies locate a mate using pheromones.[2]

Habitat

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Adults are seen during the day in gardens, yards, open woodlands, fencerows, and open areas.[2]

Range

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This species has been reported from Missouri to the north, Alabama to the south, North Carolina to the east, and Texas to the west.[1]

References

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  1. ^ a b c Walker, A. (2021). "Photinus cookii". IUCN Red List of Threatened Species. 2021: e.T164076669A166771798. doi:10.2305/IUCN.UK.2021-1.RLTS.T164076669A166771798.en. Retrieved 18 July 2024.
  2. ^ a b c d e Faust, Lynn Frierson (2017). Fireflies, Glow-worms, and Lightning Bugs. University of Georgia Press. ISBN 978-0-8203-4872-8.
  3. ^ "Photinus cookii". Integrated Taxonomic Information System. Retrieved 2023-07-27.
  4. ^ "Photinus cookii". GBIF. Retrieved 2023-07-27.
  5. ^ "Photinus_cookii". iNaturalist. Retrieved 2023-07-27.
  6. ^ a b Green, J.W. (1956). "Revision of the Nearctic species of Photinus (Lampyridae: Coleoptera)" (PDF). Proceedings of the California Academy of Sciences. Fourth. 28 (15): 561–613. ISSN 0068-547X.
  7. ^ "φωτεινός". Wiktionary, the free dictionary. 17 March 2023.
  8. ^ Lloyd, J.E. (1966). "Studies on the Flash Communication System in Photinus Fireflies". Miscellaneous publications (University of Michigan. Museum of Zoology) (130): 1–95.

Further reading

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