Neodexiopsis
Malloch, 1920
house flies
Species Guides
4Neodexiopsis is a of muscid flies ( Muscidae) established by Malloch in 1920. It is one of the two most -rich genera in the tribe Coenosiini, with at least 80 described species. The genus has been subject to taxonomic revision, particularly in relation to species previously placed in the genus Austrocoenosia. Species-level and phylogenetic relationships within Neodexiopsis have been investigated using morphological characters of flies, including male and female genitalia structures.
Pronunciation
How to pronounce Neodexiopsis: /ˌniːoʊˌdɛksiˈɒpsɪs/
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Identification
Neodexiopsis can be distinguished from the related Coenosia by morphological characters of the male and female terminalia. Phylogenetic analysis based on 132 morphological characters places Neodexiopsis as distinct from Coenosia, with Austrocoenosia species recovered within Coenosia rather than as a separate genus. Detailed examination of genital structures is required for species-level identification.
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Distribution
of Neodexiopsis have been documented in the Andean Patagonian Forests region, where they occur sympatrically with Coenosia species. The has a broader distribution beyond this region, though specific range details for the genus as a whole are not well documented.
Similar Taxa
- CoenosiaClosely related within the same tribe Coenosiini; historically confused with Neodexiopsis and subject to similar taxonomic revisions. Distinguished by morphological characters of the terminalia and supported by phylogenetic analysis.
- AustrocoenosiaFormerly recognized as a separate from the Andean Patagonian Forests; phylogenetic analysis has shown these belong within Coenosia rather than Neodexiopsis, clarifying the distinction between the two major genera.
More Details
Taxonomic History
The Neodexiopsis was established by Malloch in 1920. Recent phylogenetic work has clarified its relationship to Coenosia and resolved the status of Austrocoenosia as a junior synonym of Coenosia rather than a distinct genus related to Neodexiopsis.
Phylogenetic Methods
A 2023 study used implied weighting phylogenetic analysis of 36 and 132 morphological characters of , including detailed examination of male and female genitalia, to establish the position of Neodexiopsis relative to other Coenosiini .