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Species Tetraopes tetrophthalmus - Red Milkweed Beetle

Red Milkweed Beetle? - Tetraopes tetrophthalmus Red Milkweed Beetle - Tetraopes tetrophthalmus beetle - Tetraopes tetrophthalmus Red Milkweed Beetle - Tetraopes tetrophthalmus Beetle - what species? - Tetraopes tetrophthalmus Mating - Tetraopes tetrophthalmus Red Milkweed Beetle - Tetraopes tetrophthalmus Tetraopes tetrophthalmus - female
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)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Lamiinae (Flat-Faced Longhorns)
Tribe Tetraopini
Genus Tetraopes (Milkweed Longhorns)
Species tetrophthalmus (Red Milkweed Beetle)
Other Common Names
Synonyms and other taxonomic changes
Tetraopes tetrophthalmus (Forster)
Orig. Comb: Cerambyx tetrophthalmus Forster 1771
Syn: tetraophthalmus (spelling)
Explanation of Names
tetrophthalmus - Greek for 'four' + 'eye' (refers to the eyes of the adult each divided into two)
13 spp. n. of Mex. (1)
8-15 mm (2)
Adult: orangish-red with black spots and four black eyes (two above the antennae, and two below); combination of broad, disk-shaped hump (callus) on pronotum, strong elytral spots, especially the broad subhumeral spot, and unringed antennae are distinctive for this species (2).
MO-NC-ME-MN / adj. Can (BG Data)
Prairies, roadsides, very common where hostplant present
mostly: Jun-Aug (BG data)
Host: milkweed (Asclepias spp., esp. A. syriaca) and dogbane (Apocynum) (2).
Farrell & Mitter (1998) state that T. tetrophthalmus is associated solely with Asclepias syriaca.
Life Cycle
Eggs are laid on stems near ground or just below surface; larvae bore into stems, overwinter in roots, and pupate in spring; adults emerge in early summer(3)
Print References
Farrell, B.D., & C. Mitter. 1998. The timing of insect/plant diversification: might Tetraopes (Coleoptera: Cerambycidae) and Asclepias (Asclepiadaceae) have co-evolved? Biological Journal of the Linnean Society, 63: 553–577 (Full text)
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.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
Douglas Yanega. 1996. Illinois Natural History Survey.
3.National Audubon Society Field Guide to Insects and Spiders
Lorus and Margery Milne. 1980. Knopf.