Exetasis Walker 1852
Description
Exetasis Walker, 1852
(Fig. 16)
Exetasis Walker, 1852: 202. Type species: Exetasis tumens Walker, 1852.
Diagnosis. Eyes black and pilose, holoptic bellow antennae. Antennae inserted on the upper part of the head; flagellum often flattened laterally, longer than the head. Mouthparts shorter than the antennae. Wing hyaline, with many or few microtrichia in the membrane; vein R4 absent (Fig. 16).
Comments. In the description of the genus, Walker (1852) only described the venation of the wing and no other characters. Exetasis has been considered a synonym of Ocnaea Erichson by some authors, but Schlinger (1968a) says that these two genera are similar but may be separated by the distribution of the microtrichia on the wing membrane and the absence of the vein R 4 in Exetasis. A species revision for both genera is probably necessary for better understanding of the units.
References. Schlinger (1968a, 1972).
Brazilian species. E. brasiliensis (Carrera, 1947) [Brazil, São Paulo, São Roque (type-locality)], E. calida (Wiedemann, 1830) [Brazil], E. eickstedtae (Schlinger, 1972) [Brazil, Espírito Santo, Colatina (typelocality)], E. longicornis (Erichson, 1840) [Brazil, Minas Gerais, São João del Rei (type-locality)], E. tumens (Walker, 1852) [Brazil].
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5281/zenodo.189330 (DOI)
- Journal article: http://publication.plazi.org/id/FFDA0466134597714961532B7559FFC7 (URL)
- Is source of
- https://biodiversitypmc.sibils.org/collections/plazi/03E37C1E134D977849F656AD74E9FF1F (URL)
- https://www.gbif.org/species/119621836 (URL)
- https://www.checklistbank.org/dataset/40712/taxon/03E37C1E134D977849F656AD74E9FF1F.taxon (URL)
Biodiversity
- Scientific name authorship
- Walker
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Diptera
- Family
- Acroceridae
- Genus
- Exetasis
- Taxon rank
- genus
- Taxonomic concept label
- Exetasis Walker, 1852 sec. Gillung & Carvalho, 2009
References
- Walker, F. (1852) Diptera. Part III. In: Saunders, W. W. (Ed), Insecta Saundersiana: or characters of undescribed insects in the collection of William Wilson Sauders, pp. 157 - 252.
- Schlinger (1968 a) A revision of Arrynchus Philippi and a key to the genera of the Ocnaea branch of the Panopinae (Diptera). Revista Chilena de Entomologia, 6, 47 - 54.
- Wiedemann, C. R. W. (1830) Aussereuropaische zweiflugelige Insekten. Zweiter Theil. Schulz, Hamm, 684 pp.
- Erichson, W. F. (1840) Die Henopier, eine Familie aus der Ordnung der Dipteren. In: Entomographien, Untersuchungen in dem Gebiete der Entomologie, mit besonderer Benutzung der Konigl. Sammlung zu Berlin, vol. 1, Berlin, pp. 135 - 175.