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View Thread :: Identification queries :: Diptera (adults)
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Surinamese Tipulidae/Limoniidae: Sigmatomera sp.
#1 Print Post
Posted on 25-08-2013 05:14

Location: Suriname (South America)
Posts: 213
Joined: 21.10.12

A rather striking Tipulidae with his black-and-white legs. Could someone please help me with an ID?

Suriname, Marowijne, East of Moiwana. VII-2013. In forest.

Thanks in advance,

Auke attached the following image:

Edited by Auke on 15-09-2013 21:29
#2 Print Post
Posted on 15-09-2013 05:03

Location: Suriname (South America)
Posts: 213
Joined: 21.10.12

After some more research, I now think this might be a Ptychopteridae, possibly a Bittacomorpha. Anyone to confirm this or offer another option?

John Carr
#3 Print Post
Posted on 15-09-2013 13:59
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Location: Massachusetts, USA
Posts: 7468
Joined: 22.10.10

Sigmatomera, family Tipulidae. (Suriname is in the New World, so Tipulidae.)
#4 Print Post
Posted on 15-09-2013 16:17

Location: Suriname (South America)
Posts: 213
Joined: 21.10.12

Thanks !

I now have an additional question though: I just checked the internet for a subfamily to put this genus in, but it appears to be placed in the family Limoniidae everywhere. So what do say? Tipulidae or Limoniidae?

Thanks again,

John Carr
#5 Print Post
Posted on 15-09-2013 17:24
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Location: Massachusetts, USA
Posts: 7468
Joined: 22.10.10

The major catalog of world crane flies is from Europe. Europeans like to finely divide genera and families. The manuals of Nearctic and Central American Diptera follow the traditional single family classification of Alexander. Recent evidence suggests that family Limoniidae in the four family classification is not monophyletic.
#6 Print Post
Posted on 15-09-2013 21:28

Location: Suriname (South America)
Posts: 213
Joined: 21.10.12

I guess I'll best use both families then, divided by a slash so both followers of the European and the American classificastion are served.


Dmitry Gavryushin
#7 Print Post
Posted on 05-07-2017 15:12
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Location: Moscow region, Russia
Posts: 3187
Joined: 17.10.05

That's definitely not Sigmatomera (Chioneinae) but Lecteria s.str. (Limnophilinae). It's very difficult to suggest a species from images only, though; using the key in Alexander, 1969m we can only exclude species with uniformly darkened tarsi (calopus, fuscitarsis, both Brazi; retrorsa, Colombia). Check also the recent paper by Ribeiro and Blagoderov (2009) on rediscovery of L. calopus in Brazil (Zoosymposia 3: 235-243).

The same correction of generic name applies to the creature from Colombia in Paul Bertner's post:
Edited by Dmitry Gavryushin on 05-07-2017 15:13
While others can't climb, using infinite pains,
I, gravity turning to jest,
Ascend, with all ease, perpendicular planes,
Rough or smooth, just as pleases me best.
#8 Print Post
Posted on 25-08-2019 01:22

Location: Suriname (South America)
Posts: 213
Joined: 21.10.12

A belated "thank you," Dmitry!
All about the nature of the Guianas: www.guianasnature...
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