I think this small Chalcid (body lenght - 0,6 mm) belongs to Aphelinidae (Hymenoptera, Chalcidoidea) family. Antennae include 6 segments. I found it in the litter of pine forest. Could some expert comment my opinion?
Dear Dr. Tamutis, It is probably on brachypterous species of Aphelinidae and I can see that it is a male. But for unsurance that it is not confounded with an Eulophidae, it needs to have a good view of thoracic side. [email protected] Sincerely yours.
I would like ask you on preparation of these small wasps. What is the best way? I tried mount them on the card, but they became to dry and some characters comes to be difficult view able.
Following the key for Norvegian Aphelinus given by Japoshvili and Hansen (2014) only one species is brachypterous - Aphelinus asychis. The specimens of this species have been observed in pine forest as mine.
Article Revision of the genus Aphelinus Dalman (Hymenoptera: Chalcid...
Dear Dr. Tamutis, It is possible that this Aphelinidae should be Apelinus asychis, a primary parasitoid of aphids. Although I never observe in Southeastern France bryptérism of asychis specimens. Problem remains to clearly see on a photo of your specimen, side of mesothorax. On the basis of morphological structure of meopleure, it would become possible to state as Aphelinid or as Eulophid .My idea would be to iimmerge the brachypterous specimen 5 minutes into tap water. Then to immerge it into 30% ethylic alcohol during 1/3 hour ; then to ward the specimen into 70% ethylic alcohol. When you will have enough time, with one photo apparatus giving enough optic power (more than the commercial 50 x of many of binocular microscopes), to photography side of the body. Good luck and good work! Sincerely yours. André Panis
Generally 5 segmented tarsi (thus different from the 4 segmented tarsi of Eulophidae except that some aphelinids have 4 segmented tarsi), and antennae with eight or less segments (usually 11-segmented in Encyrtidae)(3); forewing venation distinctive.
Other features include: large eyes, wings with setal tracts, long marginal vein, yellowish-brown coloration, and thorax and abdomen broadly joined. Best regards