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A taxonomic revision of Limnobaris Bedel in the strict sense (Coleoptera, Curculionidae, Baridinae), with particular emphasis on the species found in China.

Prena J, Korotyaev B, Wang Z, Ren L, Liu N, Zhang R - Zookeys (2014)

Bottom Line: New or reestablished synonyms are L. dolorosa (Goeze) (= L. jucunda Reitter, = L. koltzei Reitter), L. tibialis (Voss) (= Pertorcus tibialis pilifer Voss) and L. t-album (Linnaeus) (= L. bedeli Reitter, = Baridius crocopelmus Gyllenhal, = L. sahlbergi Reitter, = L. scutellaris Reitter, = Baris t-album sculpturata Faust).Calandra uniseriata Dufour is considered a junior synonym of Sitophilus oryzae (L.) (syn. n.).A key for identification and a distribution map are provided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, P. R. China.

ABSTRACT
The genus name Limnobaris Bedel is applied in a restricted sense to baridine weevils with a covered pygidium and non-prominent, decussate mandibles which occur on sedges in the Palaearctic Region and immediately adjacent parts of tropical Southeast Asia. Calyptopygus Marshall and Pertorcus Voss are syn. n. of Limnobaris. Some species from Africa and the Americas are maintained provisionally in Limnobaris in the widest sense but will need to be transferred to other genera in future studies. A total of eleven species is recognized in Asia, two of which are widespread and occur also in the Western Palaearctic Region. Limnobaris martensi Korotyaev sp. n. is described from Nepal. Pertorcus tibialis basalis Voss is raised to species rank, as L. basalis (stat. prom.). New or reestablished synonyms are L. dolorosa (Goeze) (= L. jucunda Reitter, = L. koltzei Reitter), L. tibialis (Voss) (= Pertorcus tibialis pilifer Voss) and L. t-album (Linnaeus) (= L. bedeli Reitter, = Baridius crocopelmus Gyllenhal, = L. sahlbergi Reitter, = L. scutellaris Reitter, = Baris t-album sculpturata Faust). Calandra uniseriata Dufour is considered a junior synonym of Sitophilus oryzae (L.) (syn. n.). A key for identification and a distribution map are provided.

No MeSH data available.


Related in: MedlinePlus

Male protibia of Limnobaris species. 3Limnobaris basalis4Limnobaris martensi5Limnobaris tibialis.
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Figure 3: Male protibia of Limnobaris species. 3Limnobaris basalis4Limnobaris martensi5Limnobaris tibialis.

Mentions: The chief problem in the current usage of the name Limnobaris in the Palaearctic Region is the paraphyly to Calyptopygus and Pertorcus. Voss (1953) stated incorrectly that Pertorcus tibialis has only six funicular segments. However, this species is part of a morphologically homogeneous complex which includes also Limnobaris albosparsa Reitter and the type species of Calyptopygus, Calyptopygus ellipticus Marshall. This makes Pertorcus at least a junior subjective synonym of Calyptopygus, while the distinctness of Calyptopygus and Limnobaris needs to be addressed. Morimoto and Yoshihara (1996) distinguished between Limnobaris and Calyptopygus because they observed differences in (1) the length and shape of the rostrum, (2) the length proportions of the funicular segments and (3) how the mesosternum connects to the metasternum. These criteria seem to have been taken from Calyptopygus kumei Yoshihara & Morimoto, 1997 rather than from the type species, Calyptopygus ellipticus. At least (2) does not hold for Calyptopygus ellipticus, (1) only for females and (3) does not seem to work at all. Zherikhin (1997) did not say why he transferred Limnobaris albosparsa to Calyptopygus but he obviously took into account the male protibial tooth (Figs 3–5) and perhaps vestiture. These two criteria separate Limnobaris t-album, Limnobaris dolorosa and Limnobaris japonica (all with edentate male protibia and dense ventrolateral vestiture) from the remaining species, which have dentate male protibiae (except Calyptopygus kumei) and sparse ventrolateral vestiture. All included species are associated with sedges as far as is known (see taxonomic treatment further below for data and references). Limnobaris and Calyptopygus each have species that develop either in Carex or Scirpus, or both. Our preliminary molecular data of five species indicate that Limnobaris t-album and Limnobaris dolorosa nest inside the Calyptopygus/Pertorcus clade and are derived from ancestors with sparse vestiture and a long rostrum. Until more species are sequenced and our understanding of the relationships between the relevant Old and New World groups has improved, we suggest treating the presently known eleven Eurasian species in a single genus and consider Calyptopygus Marshall and Pertorcus Voss as subjective junior synonyms of Limnobaris Bedel (syn. n.).


A taxonomic revision of Limnobaris Bedel in the strict sense (Coleoptera, Curculionidae, Baridinae), with particular emphasis on the species found in China.

Prena J, Korotyaev B, Wang Z, Ren L, Liu N, Zhang R - Zookeys (2014)

Male protibia of Limnobaris species. 3Limnobaris basalis4Limnobaris martensi5Limnobaris tibialis.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109509&req=5

Figure 3: Male protibia of Limnobaris species. 3Limnobaris basalis4Limnobaris martensi5Limnobaris tibialis.
Mentions: The chief problem in the current usage of the name Limnobaris in the Palaearctic Region is the paraphyly to Calyptopygus and Pertorcus. Voss (1953) stated incorrectly that Pertorcus tibialis has only six funicular segments. However, this species is part of a morphologically homogeneous complex which includes also Limnobaris albosparsa Reitter and the type species of Calyptopygus, Calyptopygus ellipticus Marshall. This makes Pertorcus at least a junior subjective synonym of Calyptopygus, while the distinctness of Calyptopygus and Limnobaris needs to be addressed. Morimoto and Yoshihara (1996) distinguished between Limnobaris and Calyptopygus because they observed differences in (1) the length and shape of the rostrum, (2) the length proportions of the funicular segments and (3) how the mesosternum connects to the metasternum. These criteria seem to have been taken from Calyptopygus kumei Yoshihara & Morimoto, 1997 rather than from the type species, Calyptopygus ellipticus. At least (2) does not hold for Calyptopygus ellipticus, (1) only for females and (3) does not seem to work at all. Zherikhin (1997) did not say why he transferred Limnobaris albosparsa to Calyptopygus but he obviously took into account the male protibial tooth (Figs 3–5) and perhaps vestiture. These two criteria separate Limnobaris t-album, Limnobaris dolorosa and Limnobaris japonica (all with edentate male protibia and dense ventrolateral vestiture) from the remaining species, which have dentate male protibiae (except Calyptopygus kumei) and sparse ventrolateral vestiture. All included species are associated with sedges as far as is known (see taxonomic treatment further below for data and references). Limnobaris and Calyptopygus each have species that develop either in Carex or Scirpus, or both. Our preliminary molecular data of five species indicate that Limnobaris t-album and Limnobaris dolorosa nest inside the Calyptopygus/Pertorcus clade and are derived from ancestors with sparse vestiture and a long rostrum. Until more species are sequenced and our understanding of the relationships between the relevant Old and New World groups has improved, we suggest treating the presently known eleven Eurasian species in a single genus and consider Calyptopygus Marshall and Pertorcus Voss as subjective junior synonyms of Limnobaris Bedel (syn. n.).

Bottom Line: New or reestablished synonyms are L. dolorosa (Goeze) (= L. jucunda Reitter, = L. koltzei Reitter), L. tibialis (Voss) (= Pertorcus tibialis pilifer Voss) and L. t-album (Linnaeus) (= L. bedeli Reitter, = Baridius crocopelmus Gyllenhal, = L. sahlbergi Reitter, = L. scutellaris Reitter, = Baris t-album sculpturata Faust).Calandra uniseriata Dufour is considered a junior synonym of Sitophilus oryzae (L.) (syn. n.).A key for identification and a distribution map are provided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, P. R. China.

ABSTRACT
The genus name Limnobaris Bedel is applied in a restricted sense to baridine weevils with a covered pygidium and non-prominent, decussate mandibles which occur on sedges in the Palaearctic Region and immediately adjacent parts of tropical Southeast Asia. Calyptopygus Marshall and Pertorcus Voss are syn. n. of Limnobaris. Some species from Africa and the Americas are maintained provisionally in Limnobaris in the widest sense but will need to be transferred to other genera in future studies. A total of eleven species is recognized in Asia, two of which are widespread and occur also in the Western Palaearctic Region. Limnobaris martensi Korotyaev sp. n. is described from Nepal. Pertorcus tibialis basalis Voss is raised to species rank, as L. basalis (stat. prom.). New or reestablished synonyms are L. dolorosa (Goeze) (= L. jucunda Reitter, = L. koltzei Reitter), L. tibialis (Voss) (= Pertorcus tibialis pilifer Voss) and L. t-album (Linnaeus) (= L. bedeli Reitter, = Baridius crocopelmus Gyllenhal, = L. sahlbergi Reitter, = L. scutellaris Reitter, = Baris t-album sculpturata Faust). Calandra uniseriata Dufour is considered a junior synonym of Sitophilus oryzae (L.) (syn. n.). A key for identification and a distribution map are provided.

No MeSH data available.


Related in: MedlinePlus