. British journal of entomology and natural history. Natural history; Entomology. Fig. 11. Ovipositor of Mycomya britteni Kidd. Castlemartin Corse; St. David's Airfield Fen; Clwyd (Denbigh): Sontley Marsh; Gwent: Magor Marsh; Salop: Wem Moss (P. Holmes, D. Boyce & D. Reed); Oxon: Spartum Fen (K. Porter); Norfolk: Middle HarUng; Thompson Common; Strumpshaw; Catfield; Mills Marsh; Sutton (A. Foster & D. Proctor). Mycomya (M.) occultans (Winnertz, 1863) New to Britain. This species may run to marginata in the key by Hutson, Ackland & Kidd (1980), as it usually agrees with it in the pr
. British journal of entomology and natural history. Natural history; Entomology. Fig. 11. Ovipositor of Mycomya britteni Kidd. Castlemartin Corse; St. David's Airfield Fen; Clwyd (Denbigh): Sontley Marsh; Gwent: Magor Marsh; Salop: Wem Moss (P. Holmes, D. Boyce & D. Reed); Oxon: Spartum Fen (K. Porter); Norfolk: Middle HarUng; Thompson Common; Strumpshaw; Catfield; Mills Marsh; Sutton (A. Foster & D. Proctor). Mycomya (M.) occultans (Winnertz, 1863) New to Britain. This species may run to marginata in the key by Hutson, Ackland & Kidd (1980), as it usually agrees with it in the presence of a brown patch over the small radial cell and other external characters; in the absence of this darkening it would run to the couplet including winnertzi (Dziedzicki) and wankowiczii (Dziedzicki). It is best distinguished from these species by the male genital structure (Figures 12-13). Fig. 12-13. Male genitalia of Mycomya occultans (Winnertz). 12, ventral view; 13, tergite 9 and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Entomological and Natural History Society. [London] : British Entomological and Natural History Society
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