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Diptera.info :: Identification queries :: Diptera (adults)
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Stratiomyinae -> Odontomyia
Auratus
#1 Print Post
Posted on 17-07-2025 22:09
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Location: Edam - Netherlands
Posts: 409
Joined: 24.05.10

Stratiomyinae from Mongolia. At first, I thought this was a Stratiomys, but upon closer inspection, I see some significant differences, especially at the head. Unfortunately, I don't have a key to the Palearctic genera (or species), so I'm hoping for some help.

Does anyone know what genus this is, or even what species?
Auratus attached the following image:


[261.33Kb]
Edited by Auratus on 29-07-2025 11:56
Greetings,

Jan
 
Auratus
#2 Print Post
Posted on 17-07-2025 22:10
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Location: Edam - Netherlands
Posts: 409
Joined: 24.05.10

Pic 2
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Greetings,

Jan
 
Auratus
#3 Print Post
Posted on 17-07-2025 22:10
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Location: Edam - Netherlands
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Pic 3
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Greetings,

Jan
 
Auratus
#4 Print Post
Posted on 17-07-2025 22:10
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Location: Edam - Netherlands
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Pic 4
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Greetings,

Jan
 
Zeegers
#5 Print Post
Posted on 19-07-2025 14:01
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Location: Soest, NL
Posts: 19043
Joined: 21.07.04

Well, they have many there.
I will give it a go but in the end, we need to consult Martin, I guess


Theo
 
Auratus
#6 Print Post
Posted on 19-07-2025 20:34
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Location: Edam - Netherlands
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Thanks, Theo, I know they have a lot. I've already identified a few Stratiomys (validicornis, ventralis, singularior, and equestris(?)), but not everything yet. Always the same old problem: access to the right sources.

After Stratiomys, I'm going to try to identify the Nemotelus I have. So I'll probably be calling on you again.
Greetings,

Jan
 
Zeegers
#7 Print Post
Posted on 21-07-2025 13:42
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Location: Soest, NL
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So, the eye is bare, right ?

Theo
 
Zeegers
#8 Print Post
Posted on 21-07-2025 14:06
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Location: Soest, NL
Posts: 19043
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Hi Jan

According to Lindner in Lindner, it is either in subgenus Metastratiomyia or Eustratiomyia.
In the latter case, it might be Eu. mandschurica. In the first case, we are screwed, since "Die aufstellung einer Bestimmungstabelle war mir [Lindner] unmoglich, da mir die meist asiatischen Formen zu weinig bekannt geworden sind"

Theo

 
Auratus
#9 Print Post
Posted on 21-07-2025 18:34
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Location: Edam - Netherlands
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Yes, the eyes are bare.
Auratus attached the following image:


[281.66Kb]
Edited by Auratus on 21-07-2025 18:34
Greetings,

Jan
 
Auratus
#10 Print Post
Posted on 21-07-2025 18:42
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Location: Edam - Netherlands
Posts: 409
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Let's hope it's Eustratiomyia then, could you tell me what distinguishes the subgenera?

By the way I found the original description of "Stratiomyia (Eustratiomyia) mandshurica", which states the femurs are black...Sad
Auratus attached the following image:


[250.17Kb]
Edited by Auratus on 21-07-2025 18:43
Greetings,

Jan
 
Auratus
#11 Print Post
Posted on 21-07-2025 20:10
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Location: Edam - Netherlands
Posts: 409
Joined: 24.05.10

Hi Theo,

I've done some more research, and I think there's also a subgenus/species group within Odontomyia with a longer first antennal segment. When I look at which species of this group are eligible in Mongolia (Woodley 2001), I'm thinking of Odontomyia pictifrons (which is pretty close) or O. picta (but I can't find anything about them). What are your thoughts on this?
Greetings,

Jan
 
Zeegers
#12 Print Post
Posted on 21-07-2025 20:30
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Location: Soest, NL
Posts: 19043
Joined: 21.07.04

Now you mentioned it, except for the antenna it has all the jizz of an Odontomyia.

That said, picta has a black occiput in female and pictifrons should have a totally yellow scutellum. So no (obvious) match there.

The more I look at it, the more it starts to resemble something pretty close to ornata.


Theo
 
Zeegers
#13 Print Post
Posted on 22-07-2025 08:54
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Location: Soest, NL
Posts: 19043
Joined: 21.07.04

Frons is much more yellow than in 'our' ornata and the scutellar spines look very short and blunt.
It is not unlike O. garatas mentioned here
https://www.sciencedirect.com/science/article/pii/S2287884X20300996
but clearly not conspecific.


Hence, it is Odontomyia for sure, I'd say, but species unclear.
 
Auratus
#14 Print Post
Posted on 25-07-2025 22:05
Member

Location: Edam - Netherlands
Posts: 409
Joined: 24.05.10

Hi Theo,

Thanks for all the time you've put into this. For now, I'll stick with Odontomyia sp.
Greetings,

Jan
 
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