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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Dragonflies and Damselflies (Odonata) » Damselflies (Zygoptera) » Narrow-winged Damselflies (Coenagrionidae) » Forktails (Ischnura) » Black-fronted Forktail (Ischnura denticollis)
Photo#59599
Female or Juvenile Ischnura denticollis? - Ischnura denticollis
Copyright © 2006 Bob Beatson

Female or Juvenile Ischnura denticollis? - Ischnura denticollis
Sweetwater, Tucson, AZ, Pima County, Arizona, USA
June 10, 2006
Size: 2 -2.5 cm
Sorry for the blurry image.

Images of this individual: tag all
Female or Juvenile Ischnura denticollis? - Ischnura denticollis Female or Juvenile Ischnura denticollis? - Ischnura denticollis
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Contributed by Bob Beatson on 24 June, 2006 - 3:25pm
Last updated 17 August, 2006 - 1:02pm

Moved
Moved from Narrow-winged Damselflies.
… john and jane balaban, 17 August, 2006 - 1:02pm login or register to post comments

We would expect denticollis male
to have a solid black top to the thorax. This has stripes on the thorax. We were thinking of maybe a cold male I. perparva, causing him to look purple rather than blue, but we would expect a wide black shoulder stripe on perparva. This black shoulder stripe is way too thin, so we searched California Damselflies and found this image of an immature female I. denticollis, and it looks just like yours!
So your original hypothesis is correct, this is an immature adult female Ischnura denticollis! Nice detective work!
Now go get us some nice images of the male! :)
… john and jane balaban, 24 June, 2006 - 6:07pm login or register to post comments

 
credit goes to floks at arizona odes
Didn't mean to mislead anyone into thinking I came up with the ID. Arizona odes tentatively ID'd it to I. dent. Since it was tentative, I thought I'd see what folks here thought. By the by - it was somewhere between 104 - 107 degrees that day, but I was out in the "cool" morning, probably 80 -85 degrees. I think I did get a male photo and will post in a few minutes. Thanks for the input and links.
… Bob Beatson, 24 June, 2006 - 7:00pm login or register to post comments

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