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Genus Arge

Poison Ivy Sawfly - Arge humeralis fly, wasp, bee?? - Arge Arge humeralis ? - Arge humeralis - male Argid Sawfly at Brazos Bend State Park - Arge Argidae, Poison Ivy Sawfly, lateral - Arge humeralis Arge - female Argidae adult on 05.28.2020 - Arge birch sawfly larva - Arge pectoralis
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
Synonyms and other taxonomic changes
revision in(1)
Explanation of Names
Arge Schrank 1802
10 spp. in our area(2), >200 spp. worldwide(1)
adults up to 14 mm(1)
Forewing and hindwing with cell Rt closed at apex

Middle and hind tibiae with preapical spines

3rd antennal segment of male simple
holarctic (to Colombia) & Afrotropical(1)
spring to mid-summer(1)
Larvae feed on foliage of various shrubs and trees. Host data compiled from various sources:
A. clavicornus -- Shadbush, Amelanchier
A. coccinea -- Sumac, Rhus
A. humeralis -- Poison Ivy, Toxicodendron radicans
A. pectoralis -- Hazelnut, Corylus, Birch, Betula
A. scapularis -- Elm, Ulmus
our only representative of the subfam. Arginae which contains a total of 18 genera(3)