Common Hawkers at Brockholes (?)

[Colin Adams]

I see in the blog that on the 19th: Common Hawker (frequent). I've
never seen Common Hawker at Brockholes, and it doesn't appear
elsewhere on the blog. Were these positively identified (by yellow
costa, or long ante-humeral stripes, for instance), or just assumed by
jizz?

[Foley, Michael]

Thanks for pointing that out, Colin.

It was an error in transposition which has now been corrected. It should have read Common Darter!

Mike.



=============

Dr Michael J Y Foley

Biological Sciences

University of Lancaster

Lancaster, LA1 4YA

U.K.

________________________________________
From: lancashire-...@googlegroups.com [lancashire-...@googlegroups.com] on behalf of Colin Adams [colinpa...@gmail.com]
Sent: 23 September 2012 09:33
To: lancashire-...@googlegroups.com
Subject: [lancashire-dragonflies] Common Hawkers at Brockholes (?)

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[Colin Adams]

:-)

I was ready to mention that I have frequently mis-identified by
relying on the jizz difference between Common Hawker and Migrant
Hawker. Most noticeably when I was convinced I had finally seen a
Migrant Hawker in Eskdale, Cumbria, whizzing all around me. It took a
netting to correct that one.

I've never (knowingly) managed to confuse Common Hawker with Common
Darter though :-)

(not really that amusing, as I've sometimes confused Common Darter
with Migrant Hawker - at great distance they are quite similar in
size, and if they're against the light, there's not much else to go
on).

[Phil Smith]

Colin,
I counted 22 Migrant Hawkers yesterday afternoon at the southern
end of Birkdale Green Beach and adjacent slacks. Included were several pairs
and females ovipositing. Also lots of Common Darters and a late Emerald
Demselfly.

Phil.