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The Mesozoic family Archizelmiridae (Diptera: Insecta)

Published online by Cambridge University Press:  20 May 2016

David Grimaldi
Affiliation:
Division of Invertebrates, American Museum of Natural History, Central Park West at 79th St., New York, New York 10024-5192, ,
Dalton De Souza Amorim
Affiliation:
Departamento de Biologia, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14.040-901 Ribeirão Preto SP, Brazil,
Vladimir Blagoderov
Affiliation:
Division of Invertebrates, American Museum of Natural History, Central Park West at 79th St., New York, New York 10024-5192, ,

Abstract

A nematocerous fly family known previously only from one species and specimen from the Upper Jurassic of Karatau, Kazakhstan, Archizelmiridae is expanded here to include additional records preserved as compression fossils and ones in amber. The compressions are from the Upper Jurassic of Shar-Teg, Mongolia and Lower Cretaceous of Baissa, Transbaikal, with a new species, Archizelmira baissa, from Baissa. Particularly significant are three finely preserved new species and genera in ambers from the Cretaceous Period: Zelmiarcha lebanensis (Lebanon: Lower Aptian), Archimelzira americana (New Jersey: Turonian), and Burmazelmira aristica (Burma [Myanmar]: mid-Cretaceous). The latter two species interestingly possess stylate antennae, those of Burmazelmira being the only aristate antennae in the order Diptera outside the suborder Brachycera. A cladogram is presented for the relationships among archizelmirid species, cladistic rank of which correlates with stratigraphic age. Transformation series of the antennal flagellum in Archizelmiridae corresponds with one recently hypothesized for the Brachycera, wherein the style and arista are derived from the apical flagellomere(s). The family appears to be a member of the extant group Sciaroidea, which includes fungus gnats and gall midges, though precise relationships remain unclear.

Type
Research Article
Copyright
Copyright © The Paleontological Society

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