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Diptera.info :: General Diptera forums :: Rearing Diptera
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aquatic stratiomyidae
atylotus
#1 Print Post
Posted on 29-01-2010 18:06
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Location: Amsterdam, NL
Posts: 954
Joined: 29.05.09

I'm trying to rear the aquatic larvae of Odontomyia and Oplodontha, but yet I didn't succeed fully. Only 1 O. tigrina emerged, but died without getting hardened. I have done this while putting the larvae in an aquarium with just water and I have tried it in wet moss, but alas. It must be over 15 years now, that I have reason to believe that most of the diagnostic features of Odontomyia and Oplodontha larvae are incorrect. In fact, for The Netherlands, all larval identifications of these two genera, at least in Odontomyia, are false. It won't get out of my head, but I can't prove it. Does anybody have a clue in how to rear them? or does anybody have some reared material for study purposes?
Many thanks in advance.
 
Cranefly
#2 Print Post
Posted on 29-01-2010 21:49
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Location: Moscow, Russia
Posts: 577
Joined: 17.09.08

I failed almost always with aquatic larvae. Many of them migrate to soil or sand before pupation (you never know what humidity is necessary) - possibly moist with good aeration but not wet. I use Sphagnum sometimes to rear larvae because it holds humidity well and a little antiseptic. I reared Ephydra putting pupa by one in a tube with moist moss and cotton cup and besides this all tubes were together inside closed box with moist filter paper. I put this box in the sun for 1-2 hours every day. In any case I'll try to rear some Stratiomyiidae this summer.
 
Cranefly
#3 Print Post
Posted on 30-01-2010 08:36
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Location: Moscow, Russia
Posts: 577
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I want to add that early spring in the best time for collecting for larvae which hibernate at larval stage. When they are taken under warm laboratory conditions they emerge quickly. When you collect in summer you dont't know their age. And as for larvae taken in autumn - I put them into fridge till middle of January and water them (2-5 drops of water) every 4-6 days. As soon as you take them out they pupate and emerge at the end of January - February.
It is necessary for some species that the pupa must be hold by substratum and be immobile at the moment when imago emerges. It supports imago at the moment of leaving the pupa and no damages of wings and legs happen.
 
atylotus
#4 Print Post
Posted on 02-02-2010 10:20
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Location: Amsterdam, NL
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Joined: 29.05.09

Thanks for the info, I will try your method this spring and I'll hope it will yield some Odontomyia species and Oplodontha. O. tigrina, O.ornata and O.viridula are very common here, so sampling will not be of any problem.
 
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