L. hudsonica or S. danae? BC June 2009 (1 Viewer)

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• Apr 5, 2014

• #1

Hi,

I've been going through old holiday photos trying to sort out birds, mammals and insects I missed and discovered these two dragonflies.
I think the black and red male is the Hudsonian Whiteface L.hudsonica
and the yellow and black one is either:
a male Black Darter (Meadowhawk as it was in Canada) S. danae or a female Hudsonian Whiteface L.hudsonica. I am leaning towards the latter.

Please advise.

Many Thanks

 

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Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 10, 2014

• #2

Sorry to bump this, but it was about to fall of the front page.

 

pdwinter

Paul Winter

• May 10, 2014

• #3

Can't really help but the second one is not Sympetrum danae because of the dark hindwing bases.

 

ApusApus

Well-known member

• May 10, 2014

• #4

I think you've one each L. Hudsonica.


Shane

 

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 10, 2014

• #5

Thanks Paul

 

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 10, 2014

• #6

ApusApus said:

I think you've one each L. Hudsonica.


Shane

Click to expand...

Thanks Shane,

thats my thinking and the confirmation is great

 

darter

Darter

• May 11, 2014

• #7

The second one could be Leucorrhinia glacialis.

 

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 11, 2014

• #8

darter said:

The second one could be Leucorrhinia glacialis.

Click to expand...

The patterning on http://www.dragonhunter.net/leucorrhinia_hudsonica_m_r.jpg suits it better than http://www.dragonhunter.net/leucorrhinia_glacialis_m.jpg, but I don't know if freshly emerged individuals show more colour than older individuals, as in cyanosis in other species

 

ApusApus

Well-known member

• May 11, 2014

• #9

darter said:

The second one could be Leucorrhinia glacialis.

Click to expand...

It could well be L. glacialis http://www.americaninsects.net/d/leucorrhinia-glacialis.html


Shane

 

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 11, 2014

• #10

ApusApus said:

It could well be L. glacialis http://www.americaninsects.net/d/leucorrhinia-glacialis.html


Shane

Click to expand...

To quote that website

Immature males have a yellow thorax and base of the abdomen, but like the mature males they do lack spots on the abdomen.

 

ApusApus

Well-known member

• May 11, 2014

• #11

Andy Hurley said:

To quote that website

Immature males have a yellow thorax and base of the abdomen, but like the mature males they do lack spots on the abdomen.

Click to expand...

Excuse my ignorance but is that yes it could or no it couldn't?


Shane

 

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 11, 2014

• #12

Hi Shane, I am unfamiliar with this species and hence the questions. Reading what is written in your reference, it appears to me, at least, that because of the red markings of the fresh abdomen, it can't be L.glacialis. On the other hand, it only says that they lack spots, nothing about red diamonds. So, I am not sure.

 

ApusApus

Well-known member

• May 11, 2014

• #13

Andy Hurley said:

Hi Shane, I am unfamiliar with this species and hence the questions. Reading what is written in your reference, it appears to me, at least, that because of the red markings of the fresh abdomen, it can't be L.glacialis. On the other hand, it only says that they lack spots, nothing about red diamonds. So, I am not sure.

Click to expand...

Hi Andy

Are we talking about the same OP photo, the yellow/black marked one? I agree the red diamond one is L. Hudsonica but the yellow/black one looks like the immature male L. Glacialis in my reference link, if you scroll down it's the last photo?


Shane

 

Andy Hurley

Gotta love nature!

Opus Editor

Supporter

• May 12, 2014

• #14

ApusApus said:

Hi Andy

Are we talking about the same OP photo, the yellow/black marked one? I agree the red diamond one is L. Hudsonica but the yellow/black one looks like the immature male L. Glacialis in my reference link, if you scroll down it's the last photo?


Shane

Click to expand...

Yes, your right, it seems we were looking at different photos.
Thank you.