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Species Arge humeralis - Poison Ivy Sawfly

sawfly - Arge humeralis Poison Ivy Sawfly - Arge humeralis Poison Ivy Sawfly - Arge humeralis black and orange unknown - Arge humeralis Arge humeralis eggs developing in poisonwood (Metopium toxiferum) leaflet - Arge humeralis Arge humeralis red and black mystery - Arge humeralis Poison Ivy Sawfly - Arge humeralis
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)
Genus Arge
No Taxon (humeralis group)
Species humeralis (Poison Ivy Sawfly)
Explanation of Names
Arge humeralis (Palisot de Beauvois 1809)
♂ 7.0-9.0 mm, ♀ 8.0-11.0 mm(1)
e. NA (NH-FL to ND-NM)(1)
Larva feeds on poison ivy, Toxicodendron (Rhus) radicans, and related species (Illinois Wildflowers)
Life Cycle
Larvae; larva; adult
Red spot on thorax may be absent
Works Cited
1.The sawfly genus Arge (Hymenoptera: Argidae) in the Western Hemisphere
Smith D.R. 1989. Trans. Am. Ent. Soc. 115: 83‒205.