Metallactus
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Ordo: Coleoptera
Familia: Chrysomelidae
Name
Metallactus Suffrian, 1866 – Wikispecies link – Pensoft Profile
Type species
Not yet designated.
Diagnosis
Metallactus includes species that lack a deeply excised lateral edge of the elytra, additionally, the following characters may be useful to segregate species into this genus: posterior margin of intercoxal prosternal process gradually narrowing, pointed; abdomen not exposed; elytral length greater than 2× length of pronotum (Chamorro 2013[3]).
Distribution
Neotropical.
Remarks
This genus has not been revised since its original description by Suffrian (1866)[1] and its relationship with related genera is presently unclear (Schöller 2003[4], Sassi 2015[5]). Furthermore, Jacoby (1907)[2] indicated Metallactus and Griburius to be very problematic to define, and a lot of species can not fit well in either genera. However, a study with a new diagnosis of the genus Metallactus, based on a new set of effective morphological characters is in progress (Sassi, in prep.).
Argentinian species checklist
1. Metallactus albipes Suffrian, 1866 (CTS).
2. Metallactus albopictus Suffrian, 1866 (BAS, COR).
3. Metallactus argentinensis Jacoby, 1907 (COR).
4. Metallactus bivitticollis (Jacoby, 1907), comb. n. (BAS).
5. Metallactus divisus Jacoby, 1907 (SFE).
6. Metallactus generosus Suffrian, 1866 (CTS).
7. Metallactus inustus Suffrian, 1866 (BAS, CTS).
8. Metallactus luniger Suffrian, 1866 (Argentina).
9. Metallactus nigrofasciatus Suffrian, 1866 (COR, SLS). Host plant: Asteraceae: carqueja (Baccharis sp.) (Viana and Williner 1973[6]).
10. Metallactus nigrovittis Jacoby, 1907 (SFE).
11. Metallactus patagonicus Suffrian, 1866 (BAS, COR, MZA, RNO).
12. Metallactus pollens Suffrian, 1866 (CTS).
Taxon Treatment
- Agrain, F; Chamorro, M; Cabrera, N; Sassi, D; Roig-Juñent, S; 2017: A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera, Chrysomelidae, Camptosomata) ZooKeys, (677): 11-88. doi
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Other References
- ↑ 1.0 1.1 Suffrian C (1866) Zur Kenntniss der sudamerikanischen Cryptocephalen. Linnaea Entomologica 16: 1–483.
- ↑ 2.0 2.1 Jacoby M (1907) Descriptions of new Species of South–American Beetles of the Cryptocephaline Division of the Family Chrysomelidae. Proceedings of the Zoological Society of London 77: 829–855. https://doi.org/10.1111/j.1469-7998.1907.tb06961.x
- ↑ Chamorro M (2013) On the identity of Mastacanthus Suffrian, 1852 and Sternoglosus Suffrian, 1866 and key to world genera of Pachybrachina (Chrysomelidae: Cryptocephalinae: Cryptocephalini). Caucasian Entomological Bulletin 9(1): 201–206.
- ↑ Schöller M (2003) A new species of Metallactus Suffrian, 1866 (Coleoptera: Chrysomelidae: Cryptocephalinae) from Brazil. Russian Entomological Journal 12: 71–74.
- ↑ Sassi D (2015) Two new species of genus Metallactus Suffrian, 1866 from Bolivia and Brazil (Coleoptera: Chrysomelidae: Cryptocephalinae). Acta Entomologica Musei Nationalis Pragae, 55(2): 703–712.
- ↑ Viana M, Williner G (1973) Evaluación de la fauna entomológica y aracnológica de las provincias cuyanas y centrales de la República Argentina (Segunda comunicación). Acta Científica, Serie Entomología 7: 1–30.
