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 Tipulidae number 3 from French Guiana, this one is a dark one
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| Bernard Perthuis |
Posted on 07-07-2018 13:10
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Member Location: Posts: 66 Joined: 28.04.18 |
Hello, maybe this photo offers enough details for a genus ID ??? Thanks ! I am still in French Guiana so this dark one is a neotropical one. The body is 12 mms long. 
Edited by Bernard Perthuis on 25-01-2020 21:11 |
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| John Carr |
Posted on 07-07-2018 15:01
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 Member Location: Posts: 9773 Joined: 22.10.10 |
Megistocera longipennis |
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| John Carr |
Posted on 07-07-2018 15:04
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Member Location: Posts: 9773 Joined: 22.10.10 |
Make that Megistocera sp. There may be more species than I know of and the veins are a little different from longipennis. |
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| Bernard Perthuis |
Posted on 07-07-2018 21:26
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Member Location: Posts: 66 Joined: 28.04.18 |
There seems to be only one described species of Megistocera in the New world. May be an undescribed one. |
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| John Carr |
Posted on 10-07-2018 20:58
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Member Location: Posts: 9773 Joined: 22.10.10 |
This may be Brachypremna instead. I forgot it shared the short A2 vein with Megistocera. My books are in boxes. I will try to remember to check when I unpack them. |
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| Bernard Perthuis |
Posted on 18-07-2018 18:52
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Member Location: Posts: 66 Joined: 28.04.18 |
Sure, it could be Brachypremna. With the help of some good documentation, we will conclude fortunately. |
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| Bernard Perthuis |
Posted on 20-08-2018 22:43
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Member Location: Posts: 66 Joined: 28.04.18 |
Wings look like Brachypremna dispellens, so I assume that it is a Brachypremna indeed, but I appreciate a confirmation by a specialist. https://bugguide....084/bgpage Edited by Bernard Perthuis on 20-08-2018 22:45 |
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| Bernard Perthuis |
Posted on 06-10-2018 15:18
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Member Location: Posts: 66 Joined: 28.04.18 |
Up ! |
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| John Carr |
Posted on 06-10-2018 20:26
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Member Location: Posts: 9773 Joined: 22.10.10 |
According to Manual of Central American Diptera, "R1+2 strongly bent vertically toward costa; veins M2, M3, and CuA1 narrowly whitened at or close to the wing margin ... Brachypremna." Alexander revised the genus in 1912 and listed species in 1969; see references 1912j and 1969l on ccw.naturalis.nl. In the first paper this would be B. williamsoni Alexander, but to be sure you would have to compare descriptions of about 20 more later-described species. |
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| Bernard Perthuis |
Posted on 07-10-2018 14:33
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Member Location: Posts: 66 Joined: 28.04.18 |
Thank you so much. |
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but don't see the image in the post.
