A new Amazonian species of Dysmerus Casey (Coleoptera, Cucujoidea, Laemophloeidae) from Brazil

Authors

DOI:

https://doi.org/10.11606/1807-0205/2025.65.018

Keywords:

Neotropical Region, Flat beetles, South America, Taxonomy, Morphology

Abstract

This paper describes and illustrates a new Amazonian species of the lined flat bark beetle genus Dysmerus Casey, 1884. Dysmerus calicicornis sp. nov. is most similar to two species, D. curvicornis Thomas, 2009 and D. hamaticornis Thomas, 2009, sharing with them the male antennal scape apically flat, strongly deflected internally. The new species, however, can be easily distinguished from both by the male antennal scape caliciform in dorsal view, with a curved, tooth-like outer projection, and the presence of secondary sublateral lines on the pronotal surface. Additionally, the previous key to Dysmerus males is modified to include D. calicicornis sp. nov.

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References

Beutel, R.G. & Lawrence, J.F. 2005. Coleoptera, Morphology. In: Beutel, R.G. & Leschen, R.A.B. (Ed.). Coleoptera, Beetles. Volume 1: Morphology and Systematics (Archostemata, Adephaga, Myxophaga, Polyphaga partim). 2 ed. Berlin, De Gruyter. p. 35-40. https://doi.org/10.1515/9783110904550

Casey, T.L. 1884. Revision of the Cucujidae of America North of Mexico. Transactions of the American Entomological Society, 11: 69-112. https://doi.org/10.2307/25076432

Lefkovitch, L.P. 1958. Unusual antennal characters in some Laemophloeinae (Coleoptera: Cucujidae) and their taxonomic importance. Proceedings of the Royal Entomological Society of London, 27: 93-100. https://doi.org/10.1111/j.1365-3113.1958.tb00419.x

Schwarz, E.A. 1888. Proceedings of the meeting August 4, 1887. Proceedings of the Entomological Society of Washington, 1: 91-94.

Schwarz, E.A. 1889. Notes on the food habits of some North American Scolytidae and their coleopterous enemies. Proceedings of the Entomological Society of Washington, 1: 163-165.

Thomas, M.C. 2009. A review of the genus Dysmerus Casey (Coleoptera: Laemophloeidae). Insecta Mundi 0074, 1-30.

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Published

2025-05-13

Issue

Vol. 65 (2025)

Section

Original Article

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How to Cite

Bento, M. (2025). A new Amazonian species of Dysmerus Casey (Coleoptera, Cucujoidea, Laemophloeidae) from Brazil. Papéis Avulsos De Zoologia, 65, e202565018. https://doi.org/10.11606/1807-0205/2025.65.018

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