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Your last pictures show very apicalis-like specimens. If you would examine the genitalia I expect these will lead you to G. apicalis. The wings of the specimen on your first picture are very wide for G. apicalis. However I would not be surprised if it turnes out to be conspecific with G. apicalis. It is a highly variable species (in colouration, size and width of the wings)! I have not seen apicalis specimens with wings as wide as in the specimen on your first pictures though.

For as far as I know exhauster and aspirator can both be used.

Jan Willem