Compsus auricephalus

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Compsus auricephalus
Compsus auricephalus (43615805142).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Curculionidae
Genus: Compsus
Species:
C. auricephalus
Binomial name
Compsus auricephalus
(Say, 1824)
Synonyms [1]
  • Platyomus auriceps Schönherr, 1840

Compsus auricephalus, the golden-headed weevil, is a species of broad-nosed weevil in the beetle family Curculionidae. [2] It is native and fairly widespread across the southern U.S.A., extending through Central America in Guatemala and Mexico. [1]

Contents

There are two color morphs of Compsus auricephalus: predominantly green with pink/coppery head and part of the legs, or completely white to pale brown.

The status, variation, distribution, and biological information about the species was revised in 2020. [3]

Taxonomy

The species was originally described by Thomas Say in 1824 under the name Curculio auricephalus [4] on page 310. [5] It belongs to the predominantly Neotropical genus Compsus in the tribe Eustylini, in the subfamily Entiminae. It is the northernmost distributed species of the genus and the only native representative of the genus in the U.S.A.

There is an additional species distributed in Costa Rica, Honduras, Nicaragua, and Panama (as far south as the Canal Zone) that partly matches the white morph of Compsus auricephalus. Its more elevated elytral intervals and features of the male genitalia confirm that it is a different species, although it is still unknown if this species has an existing name. [3] [6]

Distribution

Compsus auricephalus is known from Guatemala, Mexico, and the U.S.A. [3]

In the U.S.A. it has been recorded from Alabama, Arizona, Arkansas, Colorado, Florida*, Georgia*, Illinois, Kentucky, Louisiana, Mississippi, New Mexico, Ohio*, Oklahoma, Tennessee, Texas, and Utah. [3] It has also been intercepted at ports of entry in Ontario, Canada. [3] [7]

Life history

Compsus auricephalus has been collected in palmetto thickets and woods, [8] on vegetation along roads, on prairies, and using a variety of methods (beating, blacklights, flight intercept traps, malaise traps, pitfall traps, sweeping, manual capture). The species has been found at elevations from sea level up to 1200 m, with most specimens collected below 100 m. [3]

Associated plants

Host specificity in broad-nosed weevils is difficult to assess, given that the presence of adults on a particular plant does not necessarily mean that feeding occurred. [9] There are at least 46 plant species in 23 families that have been associated with Compsus auricephalus according to specimen label data. [3]

Related Research Articles

<i>Otiorhynchus</i> Genus of beetles

Otiorhynchus is a large genus of weevils in the family Curculionidae. Many species of the genus, particularly the black vine weevil and the strawberry root weevil, are important pests, both as larvae and as adults. Larvae feed on plant roots. Adults are flightless with fused elytra and feed at night on plant foliage. In many species of the genus at least some races are polyploid and parthenogenetic, while the rest of the races and species are diploid and bisexual. Otiorhynchus weevils, particularly O. scaber, have been a popular subject for studies of the evolution of parthenogenesis. The genus is native to the Palearctic region. However, sixteen species were inadvertently introduced to North America and have become widespread there.

<span class="mw-page-title-main">Entiminae</span> Subfamily of beetles

The Entiminae are a large subfamily in the weevil family Curculionidae, containing most of the short-nosed weevils, including such genera as Entimus, Otiorhynchus, Phyllobius, Sitona, and Pachyrrhynchus. In comparison with their stunning diversity, only a few of these weevils are notorious pests of major economic importance. Entimines are commonly encountered in the field, including urban environments, and abundant in entomological collections.

<i>Exophthalmus</i> Genus of broad-nosed weevils

Exophthalmus is a genus of broad-nosed weevils in the family Curculionidae. It contains 85 described species.

<span class="mw-page-title-main">Eustylini</span> Tribe of beetles

Eustylini is a primarily Neotropical weevil tribe in the subfamily Entiminae.

<span class="mw-page-title-main">Geonemini</span> Tribe of beetles

Geonemini is a weevil tribe in the subfamily Entiminae.

<i>Diaprepes</i> Genus of beetles

Diaprepes Schönherr 1823: 1140 is a genus of broad-nosed weevil belonging to the family Curculionidae, subfamily Entiminae, tribe Eustylini.

<i>Compsus</i> Genus of beetles

Compsus is a genus of broad-nosed weevils in the family Curculionidae, distributed across the Americas, primarily in northern South America.

<i>Ophryastes</i> Genus of beetles

Ophryastes is a genus of broad-nosed weevils in the family Curculionidae. There are at least 30 described species in Ophryastes.

<i>Myllocerus undecimpustulatus</i> Species of beetle

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<i>Myllocerus</i> Genus of beetles

Myllocerus is a genus of oriental broad-nosed weevils in the beetle family Curculionidae. There are at least 330 described species in Myllocerus.

<i>Naupactus cervinus</i> Species of beetle

Naupactus cervinus, the Fuller rose beetle or Fuller's rose weevil, is a species of broad-nosed weevil in the family Curculionidae. Native to South America, it has been in North America since the 19th century. This species is believed to reproduce parthogenically as no male specimens have ever been found.

<i>Tropiphorus elevatus</i> Species of beetle

Tropiphorus elevatus is a species of broad-nosed weevil in the beetle family Curculionidae.

Thecesternus is a genus of broad-nosed weevils in the beetle family Curculionidae. There are about seven described species in Thecesternus.

Trachyphloeosoma is a genus of broad-nosed weevils in the beetle family Curculionidae. There are about five described species in Trachyphloeosoma.

Thinoxenus is a genus of broad-nosed weevils in the beetle family Curculionidae. There is at least one described species in Thinoxenus, T. squalens.

<i>Eustylus</i> Genus of beetles

Eustylus is a neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.

<i>Oxyderces</i> Genus of beetles

Oxyderces is a genus of broad-nosed weevils in the family Curculionidae distributed in South America. It can be recognized by the presence of dense setae on the apex of the rostrum and postocular setae.

<i>Exorides</i> Genus of beetles

Exorides is a genus of broad-nosed weevils in the family Curculionidae, tribe Eustylini, distributed in northern South America.

<i>Oxyderces viridipes</i> Species of weevil

Oxyderces viridipes is a species of broad-nosed weevils in the family Curculionidae. This species is endemic to Colombia, commonly found in Medellín and surrounding areas, but has been incidentally collected in the United States.

<i>Brachyomus</i> Genus of beetles

Brachyomus is a Neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.

References

  1. 1 2 "Compsus auricephalus Report". Integrated Taxonomic Information System. Retrieved 2018-05-03.
  2. ↑ "Compsus auricephalus Species Information". BugGuide.net. Retrieved 2018-05-03.
  3. 1 2 3 4 5 6 7 Girón, Jennifer; Chamorro, M. Lourdes (2020-09-07). "Variability and distribution of the golden-headed weevil Compsus auricephalus (Say) (Curculionidae: Entiminae: Eustylini)". Biodiversity Data Journal. 8: e55474. doi: 10.3897/BDJ.8.e55474 . ISSN   1314-2828. PMC   7365837 . PMID   32733144.
  4. ↑ Say, Thomas (1824). "Descriptions of coleopterous insects collected in the late expedition to the Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under the command of Major Long. By Thomas Say, Zoologist to the Expedition". Journal of the Academy of Natural Sciences of Philadelphia. 3 (1): 139–216 – via Biodiversity Heritage Library.
  5. ↑ Prena, Jens (2018). "An Annotated Inventory of the Weevils (Coleoptera: Curculionoidea) Described by Thomas Say". Bulletin of the Museum of Comparative Zoology. 161 (9): 323–401. doi:10.3099/MCZ161-09.1. ISSN   0027-4100. S2CID   90377467.
  6. ↑ Champion, G. C. (1911). Otiorhynchinae alatae, pp. 178–317. In: Biologia Centrali-Americana, Volume 4, Part 3. London: Bernard Quaritch.
  7. ↑ J., McNamara (1991). Curculionidae In: Checklist of Beetles of Canada and Alaska (PDF). Ottawa, Canada: Research Brunch Agriculture Canada Publication. pp. 323–365.
  8. ↑ Blatchley, W. S.; Leng, Charles W. (1916). Rhynchophora or weevils of north eastern America. Indianapolis: The Nature Publishing Company. doi:10.5962/bhl.title.122480.
  9. ↑ Kissinger, D. G. (1964). Curculionidae of America north of Mexico. A key to the genera. South Lancaster, Massachusetts: Taxonomic Publications. pp. vi+143 pp.


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