P1070384 P1070384-001
Photo © Matt Muir some rights reserved
Heritage Island, Anacostia River, DC (Google, OSM)
38.8918985333, -76.9665327575
Accuracy: 10m
open
Jun. 01, 2012 13:13:32 -0400
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Comments & Identifications

5245-thumb

spangled skimmers always have a strikingly black and white spot on the front edge of the wings near the tip (stigma). Golden-winged is tricky to separate from Needham's but I think this is Golden-winged.

Posted by hartvillestuff 12 months ago (Flag)
1000-thumb
Needham's Skimmer - Photo (c) Eric Bronson, some rights reserved (CC BY-NC-ND)
muir's ID Needham's Skimmer (Libellula needhami)
Posted by muir 12 months ago (Flag)
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Learn something new every day. You're correct, not a spangled skimmer, but I think this is a Needham's. I added a close-up image of two wing features that support a Needham's ID: (1) 4 paranal cells in the lower circle (golden winged have three), and (2) a color change in the outer fore vein (costa) from dark inner to lighter outer (goldens do not show a color change).

I learned these diagnostic features from the amazing compilation photos of G&J Strickland: Lebellula needhami and Libellula auripennis. The whole collection of images is very recommended!

Posted by muir 12 months ago (Flag)
5245-thumb

as you say, learn something new everyday! The G&J is clearly the most detailed and helpful resource I've seen on the matter. I'll have to go back and sort through some of my shots from the east coast.

Posted by hartvillestuff 12 months ago (Flag)
5245-thumb
Needham's Skimmer - Photo (c) Eric Bronson, some rights reserved (CC BY-NC-ND)
hartvillestuff's ID Needham's Skimmer (Libellula needhami)
Posted by hartvillestuff 12 months ago (Flag)
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Identification Summary

Needham's Skimmer - Photo (c) Eric Bronson, some rights reserved (CC BY-NC-ND)
muir's ID Needham's Skimmer (Libellula needhami)
Needham's Skimmer - Photo (c) Eric Bronson, some rights reserved (CC BY-NC-ND)
hartvillestuff's ID Needham's Skimmer (Libellula needhami)

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Observation © Matt Muir
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