Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Family Corydalidae - Dobsonflies and Fishflies

Unknown Flier - Corydalus cornutus - female Eastern Dobsonfly - Corydalus cornutus - male Corydalus sp. - Corydalus - female Caddis Fly? fishfly - Nigronia Female Summer Fishfly (Chauliodes pectinicornis) - Chauliodes pectinicornis - female May's bug Chauliodes rastricornis - Spring Fishfly ? Male? - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Megaloptera (Alderflies, Dobsonflies, and Fishflies)
Family Corydalidae (Dobsonflies and Fishflies)
Numbers
19 spp. in 7 genera in our area(1)
Size
25-80 mm; Corydalis cornutus males can have a 14 cm wingspan and bear elongate sickle-shaped mandibles >4 cm long(1)
Identification
large insects with soft bodies and delicate wings
key characters:
wings folded flat over back at rest
ocelli (simple eyes) present
fourth segment of tarsi rounded (flattened in Sialidae)
antennae variable: may be filiform (thread-like), moniliform (like beads on a string), serrate (toothed), pectinate (comb-like)
males of some species have enlarged mandibles, presumably used in competition for mates
Range
eastern genera: Chauliodes, Corydalus, Neohermes, Nigronia
western genera: Neohermes, Dysmicohermes (nw. NA), Orohermes (Pacific coast), and Protochauliodes (w. US; Australia, New Zealand, Chile)
Habitat
Larvae are aquatic.
Adults are terrestrial but often found near aquatic habitat of larvae, and may come to lights.
Food
Larvae feed on aquatic insects, tadpoles, and small fish.(1)
Adults either do not feed, or feed on small quantities of nectar and fruit juices.(1)
Life Cycle
The aquatic larvae go through 7-8 instars and take 2-3 years or longer to reach maturity.
Print References
(2)
Works Cited
1.Species catalog of the Neuroptera, Megaloptera, and Raphidioptera of America North of Mexico
Penny N.D., Adams P.A., Stange L.A. 1997. Proc. Calif. Acad. Sci. 50: 39-114.
2.Aquatic Insects of California
Robert L. Usinger, Editor. 1956. University of California Press.