Biodiversity Data Journal :
Taxonomic Paper
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Corresponding author: Dong Zhang (ernest8445@163.com)
Academic editor: Pierfilippo Cerretti
Received: 01 Aug 2021 | Accepted: 18 Oct 2021 | Published: 22 Nov 2021
© 2021 Shuyu Wei, Mingfu Wang, Dong Zhang
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Wei S, Wang M, Zhang D (2021) One new species of Fannia (Diptera, Fanniidae) from Yunnan, China with a key to the Fannia fuscinata-group in China. Biodiversity Data Journal 9: e72444. https://doi.org/10.3897/BDJ.9.e72444
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The Fannidae includes over 400 described species, mainly known from the Holarctic Region. The number of species in the Oriental Region are underestimated. The Fannia fuscinata-group was established by Wang et al. in 2011, consisting of nine species at present.
A new species of the genus Fannia (Diptera, Fanniidae) is described from Yunnan, part of the Oriental Region in China, namely Fannia menglaensis sp. nov. The detailed description, photographs and drawings of adults and male terminalia of F. menglaensis sp. nov. are provided. All specimens are preserved in the Museum of Beijing Forestry University.
new species, Fannia fuscinata-group, Yunnan, male terminalia
The Fanniidae is a group of Calyptratae and the sister group of a large clade including Muscidae and Anthomyiidae and the Oestroidea (
The Fannia fuscinata-group was separated from the metallipennis-group and erected as an independent group by
Terminology follows
Male: Body length 5.5–6.0 mm (Fig.
Thorax translucent yellow black, notum without distinct vitta; preustural acrostichal seta in four rows, only prescutellar pairs slightly stout, dorsocentrals 2+3, intra-alars 0+2, supra-alars 2, scutellum with widely spread fine setae in the dorsal surface, except median parts; notopleuron without seta. Katepisternal setae 1:1. Anterior spiracle brown. Calypters yellow, the lower one slightly projecting beyond the upper one.
Wings light brown; veins dark brown, tegula brown; basicosta brown, costal spine inconspicuous. Crossveins without obvious cloud; haltere yellow.
Knees yellow, other parts of legs black. Fore femur with complete posteroventral seta and posterodorsal seta rows, fore tibia with one apical posterior seta; mid-coxa without any hooked spines or spine-like setae on lower and outer margins; mid-femur with complete anteroventral seta and posteroventral seta rows, becoming gradually denser towards apex (Fig.
A Sternite 5 of Fannia pileatus
Abdomen black, long and flattened. Each tergite with long lateral marginal setae. Syntergite 1+2 to tergite 4, each with one median inverted black triangular vitta (Fig.
A Male terminalia of Fannia menglaensis sp. nov. from Yunnan, China, lateral view (BFU–10732, paratype); B Male terminalia of F. pileatus
Female: Body length 5.2 mm (Fig.
The specific epithet refers to the name of the type locality: Mengla.
The species are at present known only from Yunnan, China.
Key to the known species of the Fannia fuscinata-group in China (male) |
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1 | Fore and mid-legs entirely yellow | 2 |
– | Fore and mid-legs entirely black or partly black | 3 |
2 | Scutellum with four profoundly dark vertical stripes, surstylus in lateral view without branches |
Fannia polystylata |
– | Scutellum without dark vertical stripes, surstylus in lateral view with branches |
Fannia flavifuscinnta |
3 | Mid-tibia with only one anterodorsal seta | 4 |
– | Mid-tibia with two or more anterodorsal seta, at least on one side with two anterodorsal seta | 6 |
4 | Frontal setae twenty; postpedicel 2.50x longer than wide; eye bare; cercus with projecting process | 5 |
– | Frontal setae twelve or thirteen; postpedicel 2.00x longer than wide; eye with hairs; anterior branch of cercus without projecting process |
Fannia maximiguttatus |
5 | Posterior branches of cercus with projection on its lower margin strongly curved inwards |
Fannia pileatus |
– | Posterior branches of cercus with the projection on its lower margin curved outwards | Fannia menglaensis sp. nov. |
6 | Eye with ommatrichia | 7 |
– | Eye bare |
Fannia scissifolia |
7 | Hind femur with only one anteroventral seta; calypters brown; surstylus with sharp anterior branch |
Fannia polystylodes |
– | Hind femur with two anteroventral seta; calypters from white to yellow; anterior branch of surstylus with incision or not | 8 |
8 | Presutural acr two rows; frontal setae thirteen or fourteen pairs; cercus with projecting process from its postsutural part |
Fannia triaenocera |
– | Presutural acrostichal seta three rows; frontal setae ten to twelve pairs; cercus with projecting process from its median part in ventral view |
Fannia fuscinata |
Fannia menglaensis sp. nov. is most similar to F. pileatus
This study was funded by the National Natural Science Foundation of China (31872964) and Beijing Forestry University Outstanding Young Talent Cultivation Project (2019JQ03018).