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

Genus Sphacophilus

Argid sawfly - Sphacophilus cellularis - male Sphacophilus apios (dark form, atrescens), larvae - Sphacophilus apios Argidae, head & thorax - Sphacophilus apios - female Argidae, ovipositor - Sphacophilus apios - female Argidae, cocoon #1X, question - Sphacophilus apios Argidae, cocoon #2X, question - Sphacophilus apios Argidae larva - Sphacophilus Symphyta larva ? - Sphacophilus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Symphyta" - Sawflies, Horntails, and Wood Wasps)
Family Argidae (Argid Sawflies)
Subfamily Sterictiphorinae
Genus Sphacophilus
Synonyms and other taxonomic changes
revised in(1)
Explanation of Names
Sphacophilus Provancher 1889
Numbers
22 described spp. total, all in our area, arranged into 3 subgenera(1)(2)
Identification
key to spp. in(1) (identification based primarily on genital anatomy)
Range
Canada to Mexico; both members of the nominotypical subgenus are western (WA-CA to ID-CO-NM), Litocolus (6 spp.) are by far more diverse in sw. US, Ceocolus (14 spp.) are widespread(1)
Food
known hosts include members of Convolvulaceae, Fabaceae
Print References
Smith, D.R. 2017. A new Nearctic Sphacophilus Provancher (Hymenoptera : Argidae). Proceedings of the Entomological Society of Washington 119(2): 228-232. (BioOne)