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Holcocephala fusca
Photo#966113
Copyright © 2014
John Rosenfeld
Robber Fly -
Holcocephala fusca
Allison Park, Allegheny County, Pennsylvania, USA
July 17, 2014
Images of this individual:
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Contributed by
John Rosenfeld
on 27 July, 2014 - 8:01pm
Last updated 13 May, 2016 - 9:20pm
Holcocephala fusca Bromley, male
Moved from
Holcocephala
. ID confirmed from specimen, now a photo-voucher. Thanks John.
Obviously this species and H. abdominalis are difficult to separate and require further study. As a reference point, I have a male specimen (which I consider H. abdominalis) from Indiana with a very distinct and bright yellow abdomen. Comparison of its genitalia to this specimen shows a difference in shape, consistent with other specimens I have ID'd as H. fusca.
…
Brad Barnd
, 13 May, 2016 - 9:20pm
Moved
Moved from
Robber Flies
.
…
John S. Ascher
, 20 September, 2014 - 1:09am