Phausis reticulata
Phausis reticulata | |
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Blue ghost firefly, Phausis reticulata (Say, 1825), from eastern Kentucky | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Coleoptera |
Family: | Lampyridae |
Subfamily: | Lamprohizinae |
Genus: | Phausis |
Species: | P. reticulata |
Binomial name | |
Phausis reticulata (Say, 1825) |
Phausis reticulata, commonly referred to as the blue ghost[1] is a species of firefly found in the eastern and central United States. The species is common in the southern Appalachians, and can be seen in Great Smoky Mountains National Park, the Chattahoochee National Forest, as well as North Carolina's DuPont State Forest, the Pisgah National Forest, and the Green River Gamelands[2][3] in Henderson, Polk, and Transylvania Counties.
Description
P. reticulata is a tiny to medium-sized beetle. The males of this all-brown species are about 6–9 mm (0.2–0.4 in) long,[4] have a short second antennomere (compared to the third) as well as large eyes.[5] Unlike many firefly species found in the eastern and central United States, P. reticulata males display a steady glow, instead of a species-specific flashing pattern.[6] The light emitted by "blue ghost" fireflies appears to the human eye as blueish-white when observed at night from a distance, but bright green when examined at close range.[7] This discrepancy in the observed color may be due to the Purkinje effect.[8]
Female blue ghosts are wingless, unable to fly, and they are yellow and paedomorphic, remaining in larval form through adulthood.[7] They are also tiny, measuring only about 4–9 mm (0.2–0.4 in) long.[4]
Life Cycle
Adults
The blue ghost fireflies' ideal conditions for mating season include warm and moist forest areas that are surrounded by spongy leaf litter. The male fireflies fly a few feet off the ground, spotting glowing females.[7] The females glow continuously from 4 to 9 spots on her body so they can be spotted by the males. Females can mate more than one time.[4]
Eggs and Larvae
Once a female lays her clutch of 20 to 30 eggs, she guards them until she dies in one to two weeks. The eggs hatch approximately 4 to 5 weeks after the mother dies. The larvae are extremely tiny, approximately 0.05 in (1 – 2 mm) and are bioluminescent.[4]
Range
P. reticulata populations have been recorded in the southern Appalachian Mountains and piedmont areas of Georgia, Alabama, South Carolina, North Carolina, and Tennessee, with some isolated pockets in northern Florida.[4]
Habitat
Adults are found in a variety of habitats, including dry and moist woods, near water, and along high, dry ridges.[4]
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Phausis_Kentucky_dorsal_oblique.jpg/220px-Phausis_Kentucky_dorsal_oblique.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Phausis_Kentucky_ventral.jpg/220px-Phausis_Kentucky_ventral.jpg)
References
- ^ Bugguide.net
- ^ Detailed map of Green River Gamelands
- ^ NC Wildlife Resources Commission pdf map of Green River Gamelands
- ^ a b c d e f Faust, Lynn Frierson (2017). Fireflies, Glow-worms, and Lightning Bugs. University of Georgia Press. ISBN 978-0-8203-4872-8.
- ^ Fender, K.M. 1966. The genus Phausis in America north of Mexico (Coleoptera-Lampyridae). Northwest Science 40: 83-95.
- ^ Capinera, John L. (2008). Encyclopedia of entomology. vol 3. University of Florida. ISBN 1-4020-6360-1, ISBN 978-1-4020-6360-2.
- ^ a b c Frick-Ruppert, Jennifer E.; Rosen, Joshua J. (2008). "Morphology and behavior of Phausis reticulata (Blue Ghost Firefly)". Journal of the North Carolina Academy of Science. 124 (4): 139–47.
- ^ Branchini, Bruce R.; Southworth, Tara L.; Salituro, Leah J.; Fontaine, Danielle M.; Oba, Yuichi (2017). "Cloning of the Blue Ghost (Phausis reticulata) luciferase reveals a glowing source of green light". Photochemistry and Photobiology. 93 (2): 473–478. doi:10.1111/php.12649. PMID 27696431. S2CID 36274818.
External links
- Discover Life in America website
- Times News Article
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