Dixella autumnalis, Meigen, 1818, Meigen, 1818
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publication ID |
https://doi.org/10.5281/zenodo.15883218 |
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DOI |
https://doi.org/10.5281/zenodo.16845401 |
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persistent identifier |
https://treatment.plazi.org/id/03F087C4-1140-700F-FF92-FCD2E2B4F9DD |
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treatment provided by |
Felipe |
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scientific name |
Dixella autumnalis |
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This species is figured by Disney (1975, 1999). In the author’s collection there is only one mounted male (see Figure 1 View FIGURE 1 in Håland (2013)). The cercus ( Figure 4B View FIGURE 4 ) is prominent, with 5 bristles, one of them a bit weaker than the others, and all are placed on a prominent “foot”. In the Figure 4B View FIGURE 4 ) it is visible how closely the cercus is a part of the 9 th tergite, something that applies to all the four species. The basal lobe seems to be missing, but this may be an artefact of the mount. The apical lobe ( Figure 4A View FIGURE 4 ) is bent in the proximal part, the rest is almost parallel-sided before its somewhat abrupt end. The gonostylus ( Figure 4A View FIGURE 4 ) is evenly curved with a small triangular lamella at the outer side. There does not seem to be any strong bristles at the end of the gonostylus. The outline of the distal part of the 10 th sternite ( Figure 6D View FIGURE 6 ) is triangular, and equipped with many long hairs, clearly not so stiff as in laeta and dyari , but approximately of the same length and density.
The middle and the lateral stripes on the scutum is connected by a dark patch.
Dixella autumnalis Meigen View in CoL
has only been found in one locality ( Håland 2013) in Vestfold (VE) as larvae collected 1 July. One of them pupated and a male hatched 12 July.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.