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Genus Euderces

Euderces - Euderces pini Longhorned Beetle - Euderces picipes Euderces pini Euderces picipes Euderces picipes Ant-mimic bycid - Euderces reichei Cerambycinae, dorsal - Euderces picipes Euderces reichei? - Euderces reichei
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Longhorn and Leaf Beetles)
Family Cerambycidae (Longhorn Beetles)
Subfamily Cerambycinae
Tribe Tillomorphini
Genus Euderces
Synonyms and other taxonomic changes
revised in(1)
Explanation of Names
Euderces LeConte 1850
Numbers
4 spp. in our area, ~60 total(2)
Size
4‒9 mm
Identification
among the smallest of our longhorns; ant-like and often attractively marked(3)
among the three eastern species, E. pini is the only one with the post-median elytral fasciae in deep grooves; the median fascia are oblique in E. picipes vs. transverse in E. reichei (T.C. MacRae, 21.iv.2008)
Paraphrasing iNaturalist discussion:
Pronotum
reichei seems to be sparsely punctate/granulate
pini is longitudinally rugose, but does not reach anterior margin
picipes is longitudinally rugose and is extended to reach anterior margin
Pattern of vitta (stripes) on elytra:
pini has a transverse discal vitta as well as a basal/lunule vitta
picipes and reichei just have the discal one
picipes seem to be slanted where as reichei is not
Range
se. Canada (QC‒ON) to Venezuela‒Colombia(4)(2)
Food
Larvae feed in dead branches of chestnuts, hickories, oaks, redbuds, hackberries, etc.(3)