Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Tribe Macronychini

elmid - Zaitzevia parvula elmid - Zaitzevia parvula Canterbury River elmid - Macronychus glabratus Canterbury River elmid - Macronychus glabratus Macronychus glabratus Riffle Beetle - Macronychus glabratus Riffle beetle? - Macronychus glabratus Yellow-legged Riffle Beetle - Macronychus glabratus
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)
No Taxon (Series Elateriformia)
Superfamily Byrrhoidea (Pill, Water and Toe-winged Beetles)
Family Elmidae (Riffle Beetles)
Subfamily Elminae
Tribe Macronychini
Numbers
3 spp. in 2 genera in our area(1)
Range
much of NA: Macronychus in the east, Zaitzevia in the west(2)
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.A catalog of Coleoptera of America North of Mexico. Elmidae
Brown H.P. 1983. USDA Agriculture handbook no. 529-143b. x + 23 pp.