7445039130_36f616979f
Photo © John Beatty, all rights reserved
New Bridgeville, PA (Google, OSM)
39.9433052738, -76.4718748947
open
Jun. 25, 2012 22:51:39 -0400
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Comments & Identifications

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Tiger Spiketail - Photo (c) John Beatty, all rights reserved
wabbytwax's ID: Tiger Spiketail (Cordulegaster erronea)
Posted by wabbytwax over 2 years ago (Flag)
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Swift River Cruiser - Photo (c) greglasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
pete_woods's ID: Swift River Cruiser (Macromia illinoiensis)
Posted by pete_woods almost 2 years ago (Flag)
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Swift River Cruiser - Photo (c) greglasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
wabbytwax's ID: Swift River Cruiser (Macromia illinoiensis)
Posted by wabbytwax almost 2 years ago (Flag)
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pete could you help me distinguish this from a Tiger Spiketail for future observations? Is there a quick way to visually discern this?

Posted by wabbytwax almost 2 years ago (Flag)
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Spiketails and cruisers have similar yellow-on-black patterns, but cruisers have 1 lateral thoracic strip, while spiketails have 2 stripes. Cruisers are usually found flying continuously over larger creeks and rivers, while Spiketails tend to alternate between hovering and moving, and are usually found over small streams and seeps. Here is a good web page for learning the differences between ode families: http://www.odesforbeginners.com/family_guide/fam_spiketails.aspx

Posted by pete_woods almost 2 years ago (Flag)
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Identification Summary

Swift River Cruiser - Photo (c) greglasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
wabbytwax's ID: Swift River Cruiser (Macromia illinoiensis)
Swift River Cruiser - Photo (c) greglasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
Community ID: Swift River Cruiser (Macromia illinoiensis)
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Data Quality Assessment

Community-supported ID? Yes
1 person agrees
0 people disagree
Date? Yes
Georeferenced? Yes
Photos or sounds? Yes
Is the organism wild/naturalized? Unknown
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Yes / No
Does the location seem accurate? Unknown
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Does the date seem accurate? Unknown
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Appropriate? Yes
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Observation © John Beatty
Cc-by-nc_small some rights reserved

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