Burmacyrtus
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Grimaldi2011ZooKeys148, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Grimaldi2011ZooKeys148">{{Citation See also the citation download page at the journal. |
Ordo: Diptera
Familia: Acroceridae
Name
Burmacyrtus Grimaldi & Hauser gen. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnosis
A small, primitive acrocerid in Burmese amber easily separated from Schlingeromyia based on the well developed mouthparts; long, fine antennal stylus; dense, fine pilosity on thorax and abdominal tergites; absence of a mediolobus on the pretarsus; absence of tibial spurs; wing apex rounded; and by the venation: Vein C circumambient, cells br and bm completely separated, absence of cells r4+5 and m3, presence of a very large cell d, vein R4 present but vestigial (not connected to R5), veins CuA1 and CuA2 each present, vein A1 vestigial (cell cup not present).
Type Species
Burmacyrtus rusmithi sp. n., by present designation.
Etymology
Combination derived from Burma (the pre-junta name for Myanmar) and Cyrtus, nominal genus of Cyrtidae, a formerly used name of Acroceridae.
Discussion
Derived acrocerid features that Burmacyrtus shares with Schlingeromyia and Recent acrocerids are the following: spherical head with large, holoptic eyes in male; apex of antennal flagellum with simple stylus; presence of a distinct cervical region; wing membrane with fine wrinkling and devoid of microtrichia; and with a large calypter. Apomorphic features in Burmacyrtus that are lacking in Schlingeromyia are fine, dense pilosity; a broadly rounded wing apex; long, fine stylus; and lack (loss) of a mediolobus. The wing shape of Burmacyrtus is similar to that of some Recent acrocerine genera such as Turbopsebius Schlinger, 1972, but the latter genus has cell r4+5 present, veins CuA1+M3 fused, and a complete vein A1, among other features. Like Schlingeromyia, Burmacyrtus is also very basal in the Acroceridae. Some of the derived features in wing venation of the two species in Burmese amber may be due to the very small body size.
