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 A page on Strepsiptera
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| pierred |
Posted on 24-03-2008 10:03
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 Member Location: Paris (France) Posts: 1016 Joined: 21.04.05 |
Hello, I had the luck to see and photography Strepsiptera Stylopidae males and even to photography males in copula on the abdomen of Andrena bees. I made a page of this, to be found at : http://www.macdis...eps.en.php Pierre Duhem |
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| Jan Willem |
Posted on 24-03-2008 12:11
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 Member Location: Waalwijk, The Netherlands Posts: 1193 Joined: 24.07.04 |
You did have a lot of luck indeed!
Jan Willem |
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| John Smit |
Posted on 24-03-2008 13:51
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 Member Location: Utrecht Posts: 472 Joined: 05.10.04 |
Hi Pierre, A very nice find of this intruiging group of insects! The species inside the Ancistrocerus is not Stylops melittae, which is confined to Andrena hosts, but rather Pseudoxenos heydenii. John |
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| ChrisR |
Posted on 24-03-2008 14:16
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Super Administrator Location: Reading, England Posts: 4003 Joined: 12.07.04 |
Excellent photographs of a very scarcely seen group of insects - well done indeed!!  |
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| pierred |
Posted on 24-03-2008 16:09
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Member Location: Paris (France) Posts: 1016 Joined: 21.04.05 |
Hello, Thanks for the kind words. I'll correct the page about the Ancistrocerus' parasit not being a Stylopidae, but rather a Xenidae. Edited by pierred on 24-03-2008 16:09 Pierre Duhem |
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| John Smit |
Posted on 24-03-2008 16:12
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Member Location: Utrecht Posts: 472 Joined: 05.10.04 |
Hi Pierre, Well Xenidae, not everybody follows that split of families... In my papers it is still under Stylopidae. But those are just details! Best wishes, John |
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| jorgemotalmeida |
Posted on 24-03-2008 17:14
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 Member Location: Viseu - PORTUGAL Posts: 7750 Joined: 05.06.06 |
great webpage. For me it is so easy to spot them.  I have seen thousands male strepsiterans.  On Larinioides's web! Thousands (here)is not a metaphor, it is the truth. I always thougth them as very common insect. I have one photo that shows the female strepsiteran on abdomen of a Polistes ( the signal of her... not really her ) |
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| Gordon |
Posted on 24-03-2008 17:40
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 Member Location: Lake Kerkini, Greece Posts: 969 Joined: 02.01.08 |
I have caught only two specimens in over 1100 days of malaise trapping here in Greece, I would love to know what they are if anybody is able to determine them I will happilly send the specimens to them. Gordon Edited by Gordon on 24-03-2008 17:51 |
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| pierred |
Posted on 24-03-2008 17:59
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Member Location: Paris (France) Posts: 1016 Joined: 21.04.05 |
Gordon, The specialist is Jeyaraney Kathirithamby (in Oxford). On an Apidae list, she was told to welcome specimen in alcohol (see her page at http://users.ox.a... Pierre Duhem |
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| John Smit |
Posted on 24-03-2008 19:15
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Member Location: Utrecht Posts: 472 Joined: 05.10.04 |
Hi Gordon, I can identify them as well. John |
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| jorgemotalmeida |
Posted on 24-03-2008 19:19
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Member Location: Viseu - PORTUGAL Posts: 7750 Joined: 05.06.06 |
Pierre try to find near bridges on spiders' webs. There is no better place to see them!!! I saw them many times!!! IN one web you can find over 30!!!  Larinioides are an autentic serial killer!!! |
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| Kahis |
Posted on 24-03-2008 19:20
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 Member Location: Helsinki, Finland Posts: 1962 Joined: 02.09.04 |
I used to see adult males semi-regularly when I still used light to attract moth in my parents garden. Too bad I didn't know then that they are rather rarely collected.
Kahis |
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| pierred |
Posted on 24-03-2008 22:39
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Member Location: Paris (France) Posts: 1016 Joined: 21.04.05 |
Hello, Thanks to all for the kind words. It really makes me happy to spend those hours looking for something to photography in my cemetery. But nevermind. @Jorge: Why don't you show some of those pictures? We dipterists are rather open-minded... @John Sorry for not mentionning you. I should have done it, since you were mentionned in the list I was speaking about. @Kahis We had a thread, on this forum, about a specimen caugth in a Malaise trap, some months (years?) ago. Those "little" orders are always rather funny as a way to relax a little. Pierre Duhem |
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| jorgemotalmeida |
Posted on 24-03-2008 23:37
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Member Location: Viseu - PORTUGAL Posts: 7750 Joined: 05.06.06 |
Pierre, I don't have the photos of strepsipteran. But I will take photos, ok? But for now I will show you a very ancient photo I took to a Polistes with my ancient nikon coolpix. if you see in right part of abdomen it is possible to see an edema caused by a female strepsiteran.  for BIGGER size http://www.flickr...5/sizes/l/ I must wait for more warm weather so I can spot them! And then I will take some shots. But remember: they will be dead males on the web... |
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| Gordon |
Posted on 25-03-2008 08:26
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Member Location: Lake Kerkini, Greece Posts: 969 Joined: 02.01.08 |
My thanks to Pierred for the info, but as I am already sending my Tephritids to John I will simply add the two tubes of Streps to the bag when it goes out. |
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| Matt Smith |
Posted on 25-03-2008 15:17
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Member Location: UK Posts: 28 Joined: 13.07.04 |
I've got several Aculeate specimens with either female Stylops or empty male Styops pupa present, but I have only ever seen one male "in the wild". This was blown onto my car windscreen on a windy day just as I was starting up. Unfortunately, before I could do anything more than stare at it and say "wow - a Stylops" the wind smashed it to bits. I will be checking out spiders webs near Aculete colonies this year though....... Matt |
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| John Smit |
Posted on 25-03-2008 19:53
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Member Location: Utrecht Posts: 472 Joined: 05.10.04 |
Hi all, @ Pierre, No need to say sorry! @ Gordon, Thanks for providing the opportunity to study the specimens! If i understand you well, you are sending all in alcohol, right? That's good! Especially for the Strepsipterans. @ Jorge, This really is the first time I heard they can be found in spider webs!! Really looking forward to seeing photo's of it! And if you would be so kind as to put a few of them on alcohol for me, I'ld be greatfull! The Polistes infesting species as well as the Andrena insfesting ones are quite common, the other species however are rather rare! There are still several Aculeate genera with strepsipteran's which I have never seen before: in Panurgus, Bembix, Bembicinus, Podalonia, Ammophila etc. Has any of you ever seen these? Another species that is quite common, or at least suspected to be quite common is Halictophagus silwoodensis paraitising in Ulopa reticulata (Homoptera, Cicadellidae), which feeds monophagous on Calluna vulgaris. Here in the Netherlands it should be possible to see the males in april on Calluna. No idea if it can be found outside it's known range, i.e. Belgium, Germany, England and the Netherlands. So go look for it  . I have recorded this species new for the Netherlands last year, including pictures of females inside the abdomen of the Ulopa and a picture of the Ulopa reticulata, anyone who wants a pdf, just let me know. Could make the searching somewhat easier.John |
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| Gordon |
Posted on 27-03-2008 18:12
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Member Location: Lake Kerkini, Greece Posts: 969 Joined: 02.01.08 |
Dear John, Yes my specimens are all in alcohol, hopefully the mountain traps i am running this year will yield more streps. I hope you will forgive me if not all the Tephritidae are Tephritidae, they will be things that are common in the trap and can be thrown out. May I ask are you also doing the Ulidiidae for me, and if not can you suggest someone who can? Gordon |
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| John Smit |
Posted on 27-03-2008 19:15
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Member Location: Utrecht Posts: 472 Joined: 05.10.04 |
Hi Gordon, No problem1 I am use to getting all kinds of stuff as 'Tephritids'. I can do nearly all Tephritoidea for you (excluding Lonchaeidae!), so Ulidiidae, Platystomatidae, Pallopteridae (though Jan Willem does these for you I guess) and Tephritidae. Would be nice if the mountain traps would yield more Strepsiptera! Best wishes, John |
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| Sundew |
Posted on 27-03-2008 20:27
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 Member Location: Berlin, Germany Posts: 1565 Joined: 28.07.07 |
Recently Christian Schmid-Egger showed my Strepsipterans in alcohol that he got from Wolfgang Rutkies. Wolfgang made great photo series of copulations, see the pics in the HymIS gallery (http://www.hymis....tree_seq=7). Best wishes, Sundew |
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