Axymyiidae: Difference between revisions
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The head is rounded.The eyes of the male are contiguous for considerable distance; and divided into a larger dorsal part consisting of large facets, and a smaller ventral part of smaller facets.The eyes of the female are separated by a broad frons |
The head is rounded.The eyes of the male are contiguous for considerable distance; and divided into a larger dorsal part consisting of large facets, and a smaller ventral part of smaller facets.The eyes of the female are separated by a broad frons |
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and consist of separated facets. There are three ocelli. The antennae are short with 14 to 16 transverse segments which are covered with sparse short hairs. The oral parts are reduced. The palpi are four- to five-segmented. |
and consist of separated facets. There are three ocelli. The antennae are short with 14 to 16 transverse segments which are covered with sparse short hairs. The oral parts are reduced. The palpi are four- to five-segmented. |
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The thorax is markedly arched and has a pair of shiny oval spots near the middle of the scutum. |
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Wings have an ocellus. Wing-venation :Subcostal vein merging into anterior alar margin near midpoint; Radial vein 1 reaches distal quarter of wings, there usually fused with Radial vein 2+3; Radial vein 4 branched proximal to anterior crossvein of wing. Median vein 1 and Median vein 2 with short trunks. Anal vein not reaching alar margin. |
Wings have an ocellus. Wing-venation :Subcostal vein merging into anterior alar margin near midpoint; Radial vein 1 reaches distal quarter of wings, there usually fused with Radial vein 2+3; Radial vein 4 branched proximal to anterior crossvein of wing. Median vein 1 and Median vein 2 with short trunks. Anal vein not reaching alar margin. |
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Revision as of 19:27, 9 December 2013
| Axymyiidae | |
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| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Suborder: | |
| Infraorder: | Axymyiomorpha
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| Family: | Axymyiidae
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| Genera & species | |
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see text | |
The Nematoceran family Axymyiidae is the sole member of the infraorder Axymyiomorpha, though it is often included within the infraorder Bibionomorpha in older classifications. It is known from only six species in three genera, plus three fossil species.
Family characteristics
For terms see Morphology of Diptera.
The head is rounded.The eyes of the male are contiguous for considerable distance; and divided into a larger dorsal part consisting of large facets, and a smaller ventral part of smaller facets.The eyes of the female are separated by a broad frons and consist of separated facets. There are three ocelli. The antennae are short with 14 to 16 transverse segments which are covered with sparse short hairs. The oral parts are reduced. The palpi are four- to five-segmented.
The thorax is markedly arched and has a pair of shiny oval spots near the middle of the scutum.
Wings have an ocellus. Wing-venation :Subcostal vein merging into anterior alar margin near midpoint; Radial vein 1 reaches distal quarter of wings, there usually fused with Radial vein 2+3; Radial vein 4 branched proximal to anterior crossvein of wing. Median vein 1 and Median vein 2 with short trunks. Anal vein not reaching alar margin.
Tibiae slightly longer than femora; but somewhat shorter than tarsi. Empodium and pulvilli well developed.
Biology
Larvae live in decomposing wood
- Axymyia McAtee 1921
- A. furcata McAtee 1921
- A. japonica Ishida 1953
- Mesaxymyia Mamaev 1968
- M. kerteszi (Duda), 1930
- M. stackelbergi Mamaev 1968
- Protaxymyia Mamaev & Krivosheina 1966
- P. melanoptera Mamaev & Krivosheina 1966
- P. sinica Yang 1993
- P. taiwanensis Papp, 2007
External links
- UBC Diptera Description of Order and Families in British Columbia Family description.
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