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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » parasitic Apocrita » Braconids and Ichneumons (Ichneumonoidea) » Ichneumon Wasps (Ichneumonidae) » Rhyssinae » Giant Ichneumons (Megarhyssa)
Photo#185727
Male Ichneumon - Megarhyssa - male
Copyright © 2008 Ray Simpson

Male Ichneumon - Megarhyssa - Male
Nockamixon St. Pk., Bucks County, Pennsylvania, USA
May 24, 2008
Size: 6cm
Is this a male M. macrurus?

These were all over a dead tree trunk. No females, just dozens of males all landing on the trunk. They looked like they were feeding on something coming from the tree but others were just standing there doing nothing.
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Contributed by Ray Simpson on 27 May, 2008 - 11:21pm

We seem to remember someone
reporting that the males show up when the females are about to emerge. There must be chemistry in the air that lets them know the females are digging their way out!

Also, unfortunately, apparently the males of the different species are very difficult to tell apart.
… john and jane balaban, 29 May, 2008 - 6:21pm login or register to post comments

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