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

Tribe Lagriini

Beetle - Statira basalis metallic green beetle2 - Arthromacra aenea Long-jointed Beetle? - Statira basalis Arthromacra aenea Unknown - Arthromacra aenea Statira robusta? - Statira Darkling beetle - Arthromacra aenea Female, Statira pluripunctata? - Statira pluripunctata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Tenebrionoidea
Family Tenebrionidae (Darkling Beetles)
Subfamily Lagriinae (Long-jointed Beetles)
Tribe Lagriini
Numbers
18 spp. in 2 genera in our area, 83 genera worldwide(1)
Identification
Blatchley gives a key to the two genera in this group in our area (2):
Head not constricted to a neck; elytra very coarsely punctate, without definite striae; eyes transverse, reniform, not prominent. -->Arthromacra
Head constricted behind the eyes; elytra distinctly striate; eyes large, convex and prominent. -->Statira
Remarks
only the nominate subtribe represented in our area
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.An illustrated descriptive catalogue of the Coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana.
Blatchley, W. S. 1910. Indianapolis,Nature Pub. Co.