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Species Tetraopes texanus

Tetraopes texanus Horn - Tetraopes texanus Tetraopes texanus Horn - Tetraopes texanus Red beetle, black spots, long back antennae - Tetraopes texanus Tetraopes - Tetraopes texanus MIlkweed Beetle on Milkweed - Tetraopes texanus Tetraopes texanus Horn - Tetraopes texanus Tetraopes texanus Horn - Tetraopes texanus Tetraopes texanus Horn - Tetraopes texanus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Lamiinae (Flat-Faced Longhorns)
Tribe Tetraopini
Genus Tetraopes (Milkweed Longhorns)
Species texanus (Tetraopes texanus)
Synonyms and other taxonomic changes
Tetraopes texanus Horn
Orig. Comb: Tetraopes quinquemaculatus var. texana Horn 1878
Size
11-17 mm (1)
Identification
Very long setae at apex of most antennomeres, as long as adjacent antennomeres.
Last antennomere abruptly flattened midway and slightly curved. (2)
edges of mid-pronotal callus generally not sharply defined (1)

Det. M. A. Quinn, 2016
Range
sc US (NM-TX-MO-NE) / n. Mex (3)(4)(BG data), also MS-AL (5)
Season
Apr-June, Sept in TX (2),(BG data)
Food
Larvae feed in Green Milkweed - Asclepias longifolia var. hirtella (2)
Adults found on Green Comet Milkweed - Asclepias viridiflora in Missouri (4)
Schieffer (1998) reports that Asclepias viridis is the likely host of T. texanus in Mississippi and Alabama.
adults found on Asclepias asperula, Asclepias viridis, and Asclepias tuberosa in Texas and/or Oklahoma (BG data)
Life Cycle
Larvae are root borers, adults feed on leaves and flowers
Remarks
this is the most common sp. in Texas(3), but is considered by Arkansas to be a "Species of Greatest Conservation Need" (SGCN) (6)
See Also
similar ringed antennae and flattened ant. tip, but ant. setae not restricted to nr ant. joints
edges of mid-pronotal callus are sharply defined and nearly parallel (1):

Tetraopes femoratus LeConte
Det. M. A. Quinn, 2016
Print References
Horn, G.H. 1878. Notes on some genera of Cerambycidae of the United States. Transactions of the American Entomological Society, 7: 41-50. (Full PDF)
Huber, R.L. and V.F. Wright. 2002. First Kansas Record for Tetraopes texanus (Coleoptera: Cerambycidae). Journal of the Kansas Entomological Society, 75(4): 341.
Lingafelter, S.W. & N.V. Horner. 1993. The Cerambycidae of north-central Texas. Coleopterists Bulletin, 47(2): 159-191.(3)
MacRae, T.C. 1993. Annotated checklist of the longhorned beetles (Coleoptera: Cerambycidae and Disteniidae) occurring in Missouri. Insecta Mundi 7(4): 223–252. (4)
Rice, M.R. 1988. Natural history observations on Tetraopes and other Cerambycidae (Coleoptera) from the Great Plains ecosystem. Journal of the Kansas Entomological Society 61: 412–419.
Schiefer, T.L. 1998. Disjunct distribution of Cerambycidae (Coleoptera) in the black belt prairie and Jackson prairie in Mississippi and Alabama. Coleopterists Bulletin 52(3): 278-284. (5)
Warriner, M.D. 2004. SCIENTIFIC NOTE: Occurrence and Conservation Status of the Milkweed Beetle Tetraopes texanus Horn (Coleoptera: Cerambycidae) in Arkansas. The Coleopterists Bulletin 58(4): 567-568.
Internet References