FAM. MYCETOPHILIDyE 
Fig. 20. Epicypta. 
— 21. Palaeoepicypta, fossil (after Meunier). 
— 22. Mycothera. 
— 23. Mycetophila. 
— 24. Mycetophila (abnormal). 
— 25. Dynatosoma. 
— 26. Sceptonia. 
— 27. Zygomyia. 
— 28. Sciara . 
— 29. Cratyna (after Winnertz). 
141 
Plate 7 
Male genitalia (Dorsal aspect unless otherwise noted) . 
Great diversity exists in the form of the genitalia even within a genus, and in making compari- 
sons with these figures they must only be considered as representative types from which other species 
of a given genus may widely vary. 
Fig. I. Mycomya (= Empheria, Winnertz). 
— 2. Sciophila (= Lasiosoina, Winnertz) (ventral aspect). 
— 3. Polyhpta. 
— - 4. Diomoniis (ventral aspect). 
— 5. Megophtlialmidia occidentalis (lateral aspect). 
— 6. Leia (— Glaphyroptera, Winnertz). 
— 7. Coelosia. 
— 8. Boletiua. 
— 9. Boletiua. 
— 10. Trichoiita. 
— II. Docosia. 
— 12. Phroiiia. 
— 1 3. Rhyniosia. 
— 14. Allodia [~ Brachycampta, Winnertz). 
— i5. Allodia (= Allodia, Winnertz). 
— 16. Exechia. 
— 17. M)'Cdi!ci/////fl (lateral aspect) . 
— 18. Opistholoha. 
— ig. Dynatosoma (lateral aspect). 
— 20. Cordyla (lateral aspect). 
Ithaca, N. Y., U. S. A., iS*'' June 1909. 
