Except for picture 5, which is an isopod and not an insect, all others are terrestrial true bugs (Heteroptera). I am afraid that, as an aquatic ecologist, that as far as I can help you. Good luck!
Well, for a identification on species level you need to upload pictures from different angles and if possible better ones!
The insects are true bugs (Heteroptera) the fifth is a woodlouse (Isopoda) not an insect - in my humble opinion. I didn't do a lot of research but a first suggestion for the taxa:
1 Pentatomidae 2-4 Miridae 6 Reduviidae
Please note, I'm not a specialist on true bugs, I'm working on dragonflies, probably you try to contact Ernst Heiss from the Tiroler Landesmuseum in Germany or Wanzhi Cai from the Agricultural University in Beijing, China.
Good Luck,
Dear friends Hendrik , Sebastian and Klaus
I am thankful for your response and your guidance.
best wishes
M. Salehi
http://naldc.nal.usda.gov/download/43909/PDF
I think this book, which is free on the web, can help you understand the problems of systematic and inability to put a name on a specimen without a close view of a specialist. In this book you can name probably the family of your species.
Best Wishes
Rafael
If you want a scientific maintainable identification on species level, you need in addition to your records exact dates of the recordings, details of the environment etc. and a specialist, who knows both the insect group and the area of the collection. And this specialist has to peer your records not on photo, but in reality.
best wishes
R. Ritt
I can help you by indicating the families of the insects in your photos:
photo 1: Hemiptera Pentatomidae;
photo 2: Hemiptera Lygaeidae (maybe gen. Ryhparochromus or another closely related genus);
photo 3: Hemiptera Miridae;
photo 4: Hemiptera Lygaeidae (maybe gen. Ryhparochromus or another closely related genus);
photo 5: Coleoptera Silphidae (or another closely related family), larva. I therefore disagree with the researchers who stated that this is not an insect but it is a crustacean (isopod)! This is really a holometabolous insect in its larval stage! A type of oligopod (hexapod) coleopteran larvae is called 'onisciform' (or 'platiform') because these larvae are shaped like sowbugs, Oniscus spp. (Crustacea Isopoda). In your photo we don't see, unfortunately, the number of leg pairs, in order to distinguish an hexapod insect larva from an isopod, but we can recognize the urogomphi and the pygopod (pygopodium) (typical appendages of certain oligopod larvae of insects, such as onisciform larvae) at the posterior end of the abdomen.
photo 6: Hemiptera Reduviidae (cfr. genus Pirates).
Pay attention, please: these indications can be useful only for a first approach to the identification of your specimens. I agree with the colleagues who suggest to you to search for a more rigorous and sure identification through direct examination of each specimen by a specialist of each systematic group of insects, principally if you will use for scientific publications the identifications.
Regards,
Rinaldo Nicoli
Dear Rinaldo
Your Information help me a lot .Thank you very much.About photo 5, I am agree with you . But let me use of others' opinions.
thank you again.
best wishes
M.salehi
Specimen 5 is without any doubt larva of Silphidae (or kin). In Europe, larvae of Silpha and Thanatophilus are very similar.
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