Acalyptomerus asiaticus explained

Acalyptomerus asiaticus, is a species of fringe-winged beetle found in India, Sri Lanka, Malaysia and Thailand. It is also introduced to Jamaica.^{[1] [2] [3]}

Description

Body length is about 1.06 to 1.18 mm. Both pronotum and elytra have sharp lateral margins. These margins are very finely and densely denticulate with short and fine hairs. Dorsal surface clothed with short and uniform pubescence. There is a pair of sharp radial crests on pronotal disc. Pronotal disc is convex, and coarsely punctate with very fine pubescence. Lateral margins of elytra are evenly, finely and densely denticulate. There are 17 straight, less sharp punctate lines on elytral disc. In male, aedeagus is dorso-ventrally compressed and paramere is deeply incised with pointed apices.^[4]

Notes and References

1. Web site: Acalyptomerus CROWSON: the circumtropical genus of the family Clambidae (Coleoptera: Clambidae) . 2021-09-20 . Koleopterologische Rundschau 68 199 - 203 Wien, Juni 1998.
2. Web site: Cai . Chenyang . Lawrence . John F. . Yamamoto . Shûhei . Leschen . Richard A. B. . Newton . Alfred F. . Ślipiński . Adam . Yin . Ziwei . Huang . Diying . Engel . Michael S. . 2019-01-16 . Basal polyphagan beetles in mid-Cretaceous amber from Myanmar: biogeographic implications and long-term morphological stasis . 2021-09-20 . Proceedings of the Royal Society B: Biological Sciences . 20182175 . 10.1098/rspb.2018.2175 . 6367173 . 30963875.
3. Web site: Lawrence . John F. . Ślipiński . Adam . Seago . Ainsley E. . Thayer . Margaret K. . Newton . Alfred F. . Marvaldi . Adriana E. . March 2011 . Phylogeny of the Coleoptera Based on Morphological Characters of Adults and Larvae . 2021-09-20 . Annales Zoologici . 1–217 . 10.3161/000345411X576725.
4. Web site: New taxa of beetles (Insecta, Coleoptera) from Lebanese amber withevolutionary and systematic comments . 2021-09-20 . ALAVESIA, 2: 15-46 (2008).