Two new weevil species of the genus Myllocerus Schoenherr, 1823 (Coleoptera: Curculionidae: Entiminae) from India

Authors

  • G. Mahendiran Division of Germplasm Collection and Characterisation
  • M.M. Nagaraja Division of Germplasm Collection and Characterisation, ICAR-National Bureau of Agricultural Insect Resources, Bengaluru, Karnataka 560024, India.
  • M. Sampathkumar Division of Germplasm Collection and Characterisation, ICAR-National Bureau of Agricultural Insect Resources, Bengaluru, Karnataka 560024, India.

DOI:

https://doi.org/10.11609/jott.8629.16.1.24601-24606

Keywords:

Broad nose weevil, Curculionoidea, Cyphicerini, oriental region, rostrum, snout beetles, weevil

Abstract

Two new species, Myllocerus vathalmalaensis sp. nov. and M. depressus sp. nov., are described from India. M. vathalmalaensis differs from M. lineaticollis (Boheman, 1842) in possessing a fine central carina on the impressed rostrum, the second funicle segment longer than the first one and tegmen without parameres. M. depressus differs from M. cardoni Marshall, 1916 by the dorsally depressed rostrum, which is longer than the head, a prothorax depressed and constricted near the posterior margin, the antennae and legs black in colour, the hind femora with a single spine and a spermatheca with curved nodulus.

 

Author Biographies

G. Mahendiran, Division of Germplasm Collection and Characterisation

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M.M. Nagaraja, Division of Germplasm Collection and Characterisation, ICAR-National Bureau of Agricultural Insect Resources, Bengaluru, Karnataka 560024, India.

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M. Sampathkumar, Division of Germplasm Collection and Characterisation, ICAR-National Bureau of Agricultural Insect Resources, Bengaluru, Karnataka 560024, India.

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References

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O’Brien, C.W., M. Haseeb & M.C Thomas (2006). Myllocerus undecimpustulatus undatus Marshall (Coleoptera: Curculionidae), a recently discovered pest weevil from the Indian Subcontinent. Entomology Circular No. 412, Division of Plant Industry, Florida Department of Agriculture and Consumer Services. 3 pp.

Lyal, C.H.C (2021). Glossary of Weevil Characters. International Weevil Community Website. http://weevil.info/glossary-weevil-characters (accessed 27 on August2021).

Marshall, G.A.K (1916). Coleoptera. Rhynchophora: Curculionidae. In: Shiply, A.E. (ed.). The Fauna of British India including Ceylon and Burma, Taylor and Francis, London, xv + 367 pp.

Oberprieler, R.G., A.E. Marvaldi & R.S. Anderson (2007). Weevils, weevils, weevils everywhere. Zootaxa 1668(1): 491–520. https://doi.org/10.11646/zootaxa.1668.1.24

Ramamurthy, V.V. & S. Ghai (1988). A study on the genus Myllocerus (Coleoptera: Curculionidae). Oriental Insects 22: 377–500.

Ramamurthy, V.V., B.P. Nathan & R.K. Anand (1992). Further taxonomic studies on Myllocerus with new synonymy of Hyperstylus (Coleoptera: Curculionidae). Oriental Insects 26: 119–152.

Schoenherr, C.J. (1823). Tabulasynoptica familiae Curculionidum. Isis von Oken 10: 1132–1146.

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Published

26-01-2024

Issue

Vol. 16 No. 1 (2024)

Section

Short Communications

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Copyright (c) 2024 G. Mahendiran, M.M. Nagaraja, M. Sampathkumar

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