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 Tachinid egg on Heteroptera
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| sd |
Posted on 05-10-2011 18:53
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Member Location: Posts: 892 Joined: 11.10.07 |
Location: Suffolk, UK. Birch trees near water I swept some Birch trees (Betula) this morning to see if I could find any shieldbugs with Tachinid eggs attached. I had some success I think with the Elasmostethus interstinctus (Green Birch Shieldbug) individual shown below. I presume the egg belongs to Subclytia rotundiventris, or are there other possibilities? Does anyone have suggestions for overwintering shieldbugs - keep them in an outdoor shed would be the main one presumably. Steve |
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| sd |
Posted on 05-10-2011 18:57
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Member Location: Posts: 892 Joined: 11.10.07 |
Oops, mis-id of shieldbug. Please correct to Parent Shieldbug, Elasmucha grisea  |
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| ChrisR |
Posted on 05-10-2011 19:10
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 Administrator Location: Posts: 7699 Joined: 12.07.04 |
It certainly looks like other eggs that have been reared out to Subclytia ... but I am not sure how many other species lay eggs like that - would be really great if you could rear it out I keep looking for these but have never found any shieldbugs with eggs on them.
Edited by ChrisR on 05-10-2011 19:12 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Marion Friedrich |
Posted on 05-11-2011 16:04
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Member Location: Posts: 1129 Joined: 07.10.09 |
While reading this thread I remembered that I met this year an Elasmucha grisea with a similar white spot. I searched for the photos and had a closer look. Now I learned that such annoying spots can have an interesting origin. Marion |
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| Sundew |
Posted on 05-11-2011 17:57
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 Member Location: Posts: 3890 Joined: 28.07.07 |
This summer I saw several shield bugs bearing eggs. I tried to remove them, but they stuck firmly and seemed to be empty - had the fly larva already gotten into the bug? And why are all the eggs positioned in nearly the same place, the right upper part of the pronotum?? All our pics show that, so it can hardly have happened by chance, I think. Edited by Sundew on 05-11-2011 17:59 |
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| sd |
Posted on 10-11-2011 22:28
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Member Location: Posts: 892 Joined: 11.10.07 |
Yes, I found a second individual with the egg case on the right side. If you search Bugguide for tachinid egg, a few similar photos turn up with the egg either dorsally or on the right side. Has anyone seen an egg on the left side? Steve PS my captive specimens along with a few adults without egg cases are still very much alive, sitting out the Winter in tubes containing moist paper. The parasitised ones appear to have swollen abdomens compared to the others  |
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| Larry Shone |
Posted on 12-11-2011 14:39
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 Member Location: Posts: 187 Joined: 08.05.10 |
Cool thread and photos! Patasitism in action! |
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| HDumas |
Posted on 28-11-2011 18:53
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Member Location: Posts: 184 Joined: 24.04.09 |
Here Tachinids oviposit on both sides of the bug (Nezara viridula):
Edited by HDumas on 28-11-2011 18:54 Greetings from Provence |
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| ChrisR |
Posted on 28-11-2011 19:50
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Administrator Location: Posts: 7699 Joined: 12.07.04 |
Very nice - would be good to keep the bug and see what emerges
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| sd |
Posted on 29-11-2011 11:13
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Member Location: Posts: 892 Joined: 11.10.07 |
Another left-sided one is here http://www.dipter...d_id=33899 |
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