''Rhinostomus barbirostris'', common name Bottlebrush Weevil or Bearded Weevil, is a species of
true weevil
True most commonly refers to truth, the state of being in congruence with fact or reality.
True may also refer to:
Places
* True, West Virginia, an unincorporated community in the United States
* True, Wisconsin, a town in the United States
* Tr ...
family.
Description
''Rhinostomus barbirostris'' can reach a length of , excluding beak. It is probably the third largest weevil in the world. The basic color is black. The pronotum is as long as wide and densely punctate. The elytra bear distinct striae and are deeply punctate. Males have characteristic long reddish gold hairs on the apical portion of the long, straight, and dorsally dentate rostrum. The antennae are long and slender, and strongly elbowed. The front tibiae have two or more large, sharp teeth on the inner face. This species shows an unusual sexual
polymorphism, as some males in each population are smaller than other males and resemble females.
Distribution
This common and widespread species occurs mainly in
Central America
Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...
and
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...
, while similar species in the genus occur in the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
,
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
,
Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...
,
Borneo
Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas ...
, and
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
.
References
Gwannon* Patricia Vaurie
Weevils of the Tribe Sipalini (Coleoptera, Curculionidae, Rhynchophorinae) Part 1. The Genera ''Rhinostomus'' and ''Yuccaborus''The smaller majority* Morrone, J.J., Cuevas, P.I. (2002
Cladistics of the pantropical genus ''Rhinostomus'' (Coleoptera: Curculionoidea: Dryophthoridae) with nomenclatural notes
Dryophthorinae
Beetles of Central America
Beetles described in 1775
Taxa named by Johan Christian Fabricius
{{Dryophthorinae-stub