| Lachnopus | |
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| Lachnopus guerinii | |
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| Genus: | Lachnopus Schönherr, 1840 |
Lachnopus is a genus of broad-nosed weevils in the family Curculionidae distributed in the Caribbean Region. [1]
The genus Lachnopus was named for the first time by Carl Johan Schönherr in 1840 (p. 380). [2] The names MenoetiusDejean, 1821-94 [3] and PtilopusSchönherr, 1823: c. 1140 [4] are considered junior synonyms of Lachnopus. [5]
The placement of Lachnopus within Entiminae has been unstable through time. It was considered part of Lacordaire's "Cyphides" (p. 107, 122) along with some genera considered nowadays to be part of the tribe Eustylini (Compsus, Exophthalmus , Oxyderces , Tetrabothinus ) or Naupactini ("Cyphus" -currently Cyrtomon -, Platyomus ). [6] Then considered among the Barynotini in van Emden (1944) [7] and O'Brien and Wibmer (1982), [5] a widespread assemblage of weevils which is now known as the Geonemini. [1]
The identity of Lachnopus has been questioned, specifically regarding its distinctness from Exophthalmus . [8] The status of Lachnopus as a separate genus was confirmed by Franz (2012). [9]
Lachnopus is currently the most diverse and one of the most widespread groups of entimine weevils in the Caribbean Region. [10] Girón et al. (2018) recognized six species groups within the genus, [10] partly based on results of a previous morphology-based phylogenetic study. [11]
According to the key provided by van Emden (1944), [7] some characters to recognize the genus Lachnopus are as follows:
Rostrum weakly and evenly convex throughout; antennal scape extending to, or slightly passing beyond middle of eye; frons between eyes conspicuously narrower than dorsal surface of rostrum; head not constricted posteriad of eyes; eyes only moderately convex; humeri only slightly wider than posterior margin of pronotum; femora unarmed; tibiae ventrally denticulate; and metatibial corbel lacking scales.
— van Emden, XLVII—A key to the genera of Brachyderinae of the World., p. 520
The genus Lachnopus ranges across the Caribbean Region, spanning the Lucayan Archipelago (The Bahamas plus the Turks and Caicos Islands), the Greater Antilles, the Cayman Islands, and Cozumel Island (Mexico). [10]
There are 73 Lachnopus species described to date:
Exophthalmus is a genus of broad-nosed weevils in the family Curculionidae. It contains 85 described species.
The Anypotactini are a Neotropical weevil tribe in the subfamily Entiminae. It includes 81 described species.
Eustylini is a primarily Neotropical weevil tribe in the subfamily Entiminae.
Geonemini is a weevil tribe in the subfamily Entiminae.
Ophryastini is a weevil tribe in the subfamily Entiminae.
Tanymecini is a tribe of broad-nosed weevils in the beetle family Curculionidae, subfamily Entiminae.
Diaprepes Schönherr 1823: 1140 is a genus of broad-nosed weevil belonging to the family Curculionidae, subfamily Entiminae, tribe Eustylini.
Barypeithes sulcifrons is a species of weevil native to Europe.
Polydrusus pterygomalis is a species of weevil native to Europe.
Pandeleteius is a genus of broad-nosed weevils in the family Curculionidae. There are over 150 described species in Pandeleteius, distributed across the Americas. Most species in the genus were described by Anne Howden.
Pachnaeus is a genus of broad-nosed weevils in the family Curculionidae. There are about seven described species in Pachnaeus.
Artipus is a genus of broad-nosed weevils in the beetle family Curculionidae. There are about 10 described species in Artipus.
Polydacrys is a genus of broad-nosed weevils in the beetle family Curculionidae, subfamily Entiminae, tribe Anypotactini, present across the Americas and the Caribbean. There are eight described species in Polydacrys.
Polyteles is a South American genus of broad-nosed weevils in the subfamily Entiminae, tribe Entimini. There are seven described species distributed in Argentina, Bolivia, Brazil, Ecuador, Paraguay, Peru, and Uruguay.
Apodrosus is a Caribbean genus of broad-nosed weevils in the subfamily Entiminae, tribe Polydrusini.
Eustylus is a neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.
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.
Brachyomus is a Neotropical genus of broad-nosed weevils in the subfamily Entiminae, tribe Eustylini.
Anypotactus is a genus of broad-nosed weevils in the beetle family Curculionidae, subfamily Entiminae, tribe Anypotactini, present across Central and South America. There are six described species in Anypotactus.
Cyrtomon is a genus of broad-nosed weevils in the beetle family Curculionidae, present only in South America. There are six described species in Cyrtomon.
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Data related to Lachnopus at Wikispecies