Thread subject: Diptera.info :: Chaoborus crystallinus?
Posted by Rui Andrade on 27-07-2019 06:02
#1
Hi, is it possible to be sure of the species from these pictures? The posterior pronotum seems to be darker on upper half comparing to lower half (but not really blakish). The last segment of the antenna appears to be shorter than the preceding segment and the femora are uniform in colour. I'm not so sure about the colour of the abdomen, it seems to be banded on some segments. Pondering on all these characteristics I would say it is Chaoborus crystallinus.
location: Porto (Portugal)
date: 20/07/2019
Posted by Rui Andrade on 27-07-2019 06:02
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Posted by Rui Andrade on 27-07-2019 06:03
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Posted by Rui Andrade on 27-07-2019 06:03
#4
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Posted by Rui Andrade on 27-07-2019 06:03
#5
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Posted by Rui Andrade on 27-07-2019 06:04
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Posted by Rui Andrade on 27-07-2019 06:04
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Posted by Rui Andrade on 27-07-2019 06:04
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Posted by Tony Irwin on 27-07-2019 10:10
#9
Wouldn't like to say whether this is
crystallinus or
obscuripes. Both can vary in colour quite a bit. Best thing is to carefully dissect the penis valves from the base of the gonocoxite. Their shape is fairly distinctive. (see figs in PM)
Posted by Tony Irwin on 27-07-2019 10:10
#10
Wouldn't like to say whether this is
crystallinus or
obscuripes. Both can vary in colour quite a bit. Best thing is to carefully dissect the penis valves from the base of the gonocoxite. Their shape is fairly distinctive. (see figs in PM)
Posted by Tony Irwin on 27-07-2019 10:17
#11
Apparently I can't attach image to PM, so have sent you an e-mail instead.
Posted by Rui Andrade on 27-07-2019 10:35
#12
Thank you, Tony!