Explanation of Names
Author is
Motschulsky, 1852.
From Greek
pyro fire, plus
pyga, rump
(1). Apparently refers to the light organs in this genus, though they are much reduced compared to typical Lympyridae.
Numbers
5 spp listed at Nomina Insecta Nearctica.
Identification
Small, dark fireflies, similar to
Ellychnia. Note these characters
(2):
reduced (but not completely absent) light organs (absent in Ellychnia)
third antennal segment as long as or slightly longer than fourth segment (3rd shorter than 4th in Ellychnia)
small, 5-9 mm in length (Ellychnia typically 10 mm or more)
Print References
Borror, entries for
pyr,
pyg(1)
Dillon and Dillon, pp. 249-250
(2)
Contributed by
tom murray on 21 June, 2005 - 5:27am
Additional contributions by
cotinis,
kschneiLast updated 13 January, 2009 - 11:59am