THE CANADIAN ENTOMOLOGIST. 



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EXPLANATION OF FIGURES 9 AND 10. 



1. Hercostomus velitus, male wing. 



2. Hercostomus vetitus, lamella of hypopygium. 



3. Hercostomus anarmostus, male wing. 



4. Paraclius hybridus, hypopygium. 



5. Paraclius hybridus, male wing. 



6. Tachytrechus protervus, female wing. 



7. Tachytrechus protervus, lamella. 



8. Tachytrechus volitans, hypopygium. 



9. Dolichopus sincerus, lamella. 



10. Dolichopus sincerus, male antenna, from inside. 



11. Dolichopus misellus, lamella. 



12. Nematoproctus venustus, hypopygium. 



13. Gymnopternus mirificus, male antenna. 



14. Gymnopternus phyllophorus, Lw. , male antenna. 



15. Pelastoneurus Wheelerii, hypopygium. 



