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DOI: http://dx.doi.org/10.11646/zootaxa.3750.4.9

Two new species of Dryophthorinae in the genera Metamasius and Melchus from the Lesser Antilles (Coleoptera: urculionidae)

ROBERT S. ANDERSON

Abstract


Metamasius planatus and Melchus jessae, are described and illustrated from the Lesser Antilles islands of Dominica and St. Lucia.  Metamasius planatus (Dominica) is distinguished by a relatively flat profile and presence of dense, very fine, golden micropilosity covering most of the dorsal surface.  Melchus jessae (Dominica and St. Lucia) is the sixth species known in the genus and is distinguished by the cylindrical rostrum (not laterally compressed apically).  Information on natural history for both species is limited: some Metamasius planatus and one Melchus jessae were collected in bases of Euterpe globosa fronds. A revised key to genera of Neotropical Litosomini is presented.


Keywords


Coleoptera, Curculionidae

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References


Anderson, R.S. (2002) The Dryophthoridae of Costa Rica and Panama: Checklist with new synonymy and descriptions of new species of Cactophagus, Mesocordylus, Metamasius and Rhodobaenus (Coleoptera; Curculionoidea). Zootaxa, 80, 1–94.

Anderson, R.S. (2003) Neotropical Dryophthoridae: Redescription of the genus Melchus Lacordaire with description of Daisya Anderson, new genus, and seven new species (Coleoptera: Curculionoidea). The Coleopterists Bulletin, 57, 413–431.

O’Brien, C.W. & Turnbow, R.H. Jr. (2011) An annotated list of the Curculionoidea (Coleoptera) of Dominica (Excluding Scolytinae and Platypodidae). Insecta Mundi, 0179, 1–31.

Vaurie, P. (1966) A revision of the Neotropical genus Metamasius (Coleoptera, Curculionidae, Rhynchophorinae). Species groups I and II. Bulletin of the American Museum of Natural History, 131 (3), 211–337.

Vaurie, P. (1967) A revision of the Neotropical genus Metamasius (Coleoptera, Curculionidae, Rhynchophorinae). Species group III. Bulletin of the American Museum of Natural History, 136 (4), 175–268.


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