Diptera.info :: Identification queries :: Diptera (adults)
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 Limoniidae Chioneinae Gonomyia (Gonomyia)?
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| blowave |
Posted on 17-07-2011 18:34
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 Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Hi, I have keyed this as in the title, subfamily Chioneinae, genus Gonomyia (Gonomyia). The keys don't go further than that but if it can be confirmed I can put this in the gallery as we don't have any Gonomyia sp. there. Length of wings ~7.5mm Janet blowave attached the following image:  [106.33Kb] http://cubits.org... |
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| blowave |
Posted on 17-07-2011 18:34
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
crop
blowave attached the following image:  [123.7Kb] http://cubits.org... |
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| blowave |
Posted on 17-07-2011 18:35
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 3
blowave attached the following image:  [108.79Kb] http://cubits.org... |
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| JSalmela |
Posted on 17-07-2011 18:57
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Member Location: Finland Posts: 40 Joined: 11.07.11 |
This is very pale specimen. If it is Gonomyia, it must be teneral one. Rhabdomastix is also possible (based on habitus), species of that genus usually live in sandy streams. -Jukka Salmela |
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| blowave |
Posted on 17-07-2011 19:49
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Jukka Salmela wrote: This is very pale specimen. If it is Gonomyia, it must be teneral one. Rhabdomastix is also possible (based on habitus), species of that genus usually live in sandy streams. -Jukka Salmela Thank you Jutta for alerting me to the possibilty of it being Rhabdomastix. I have rechecked the keys, the couplet which would lead me to Rhabdomastix states: Rs as long as or longer than half the length of the upper basal cell; about as long as veins R3 and R4+5. I took the alternative route, which states: Rs shorter than half the length of the upper basal cell; shorter than veins R3 and R4+5 I think I took the correct route.  The next step took me to one where vein R is absent and the discal cell is rectangular (not triangular). The last step where the first two flagellar segments are longer than the pedicel (not the same length combined); body with brighter yellow areas including parts of the pleurae and usually sides of the top of the thorax in front of the wing. Is this correct? http://cubits.org... |
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| JSalmela |
Posted on 18-07-2011 08:05
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Member Location: Finland Posts: 40 Joined: 11.07.11 |
I put some photos of Gonomyia and Rhabdomastix in my web site. I would like to see your specimen (in vitro) to be sure about the identification. https://sites.google.com/site/cranefliesoffinland/crane-fly-photos -Jukka Salmela |
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| blowave |
Posted on 18-07-2011 13:53
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Thank you Jukka, I found your photos. The Rs vein on your specimen of Rhabdomastix is very long as stated in the keys. The Rs vein on your Gonomyia specimen is short, so I am happy that this is Gonomyia. The veins on my photo can be seen sufficiently to tell. I have marked out the vein in red.. blowave attached the following image:  [58.72Kb] http://cubits.org... |
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but don't see the image in the post.