Sphenostethus

Sphenostethus is a genus of beetles in the family Cerambycidae (longhorn beetles). It is monotypic, being represented by the single species Sphenostethus taslei.[1]

Sphenostethus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Infraorder: Cucujiformia
Family: Cerambycidae
Subfamily: Prioninae
Tribe: Solenopterini
Genus: Sphenostethus
Westwood, 1845
Species:
S. taslei
Binomial name
Sphenostethus taslei
(Buquet, 1841)
Synonyms
  • Hoplopteryx Westwood, 1845

It is found throughout the eastern United States, from Pennsylvania to Texas.[2] Craighead noted that its larvae are unusual in their habit of boring into dry dead treetop limbs, rather than damp wood near the ground[2] This point was contested by Vlasak & Vlasakova, who recorded that S. taslei larvae were more frequently found in fallen limbs, not necessarily preferring treetop branches. They also argued against the association with dry branches, finding instead a larval preference for limbs of smaller diameter compared to other prionids.[3] Various hardwoods are used as larval hosts, including oak, chestnut, and redbud.[2] They are also frequently found in American beech.[4] Craighead remarked that the adults of this species are rarely seen, but the larvae are quite common.[2]

References

  1. Bezark, Larry G. A Photographic Catalog of the Cerambycidae of the World. Retrieved on 22 May 2012.
  2. Craighead, Frank C.; States, United (1915). Contributions toward a classification and biology of the North American Cerambycidae. Washington: G.P.O. doi:10.5962/bhl.title.66097.
  3. Vlasak, Josef; Vlasakova, K. (December 31, 2021). "New larval hosts and ecological observations on North American Cerambycidae". Insecta Mundi (901): 1–23 via Florida Online Journals.
  4. Champlain, A. B.; Kirk, H. B.; Knull, J. N. (1925). "Notes on the Cerambycidae". Entomological News. 36: 105–109 via Biodiversity Heritage Library.


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