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Family Lampyridae - Fireflies

Lightening bug - Photinus pyralis Firefly - Lucidota atra Lampyridae (Fireflies) - Photinus Large Firefly? - Photuris Firefly - Ellychnia corrusca Coleoptera - Lucidota atra small beetle  - Pyropyga decipiens Pyractomena punctiventris (LeConte) - Pyractomena punctiventris
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
Superfamily Elateroidea (Click, Firefly and Soldier Beetles)
Family Lampyridae (Fireflies)
Other Common Names
Firefly Beetles, Lightning Bugs
Pronunciation
lamb-PIER-ri-dee
Explanation of Names
Lampyridae Latreille 1817
New Latin lampyris 'glowworm' from Greek 'shining'
Numbers
ca. 170 spp. in ~20 genera in our area, ~2000 described spp. in >80 genera worldwide and estimated thousands undescribed(1)
Overview of our fauna:
Family LAMPYRIDAE
Taxa not yet in the guide: (*) native, (+) non-native.
Subfamily Lampyrinae
Incertae sedis Pterotus
Size
4-18 mm(1)
Identification
Soft-bodied beetles; head is concealed from above by pronotum (exposed in Canthardiae); last 2-3 abdominal sternites often modified to light-emitting organs; tarsal formula 5-5-5
most northeastern spp. can be identified using(2)
Habitat
larvae mostly in damp situations
Food
Larvae prey on small animals, including snails; adults of many genera do not feed(3). Female Photuris are known to lure Photinus males using the flash pattern of female Photinus, and eat them to obtain defensive chemicals(4).
Remarks
larvae luminescent, emit light from the tail area
Many firefly spp. are well chemically protected, primarily by the steroid-like lucibufagins that make them distasteful to jumping spiders and birds(4)
See Also
Print References
Eisner et al., 1997. Firefly “femmes fatales” acquire defensive steroids (lucibufagins) from their firefly prey. Proc. Natl. Acad. Sci. USA 94: 9723–9728.
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.The fireflies (Coleptera; Lampyridae) of Ontario
Luk S.P.L., Marshall S.A., Branham M.A. 2011. Canadian Journal of Arthropod Identification 16: 1-105.
3.National Audubon Society Field Guide to Insects and Spiders
Lorus and Margery Milne. 1980. Knopf.
4.For Love of Insects
Thomas Eisner. 2003. Belknap Press.