. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST., 6: 1993 9 1 Strong p (5 weak p basal to it). Hind tibia with 6 strong a, 5 strong d (2 short, weak between them), 7 p on apical half. Hind coxa with short weak p up to half length of preapicals which are straight to gently curved. The male genitalia are shown in Figs 7-9. Holotype male USA, Arizona, Grand Canyon National Park (north rim), 1954 (W. L. Downes, Natural History Museum, London). Mycetophila riparia sp. n. Male. Coloration and wing characters as above species. Head and s
. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST., 6: 1993 9 1 Strong p (5 weak p basal to it). Hind tibia with 6 strong a, 5 strong d (2 short, weak between them), 7 p on apical half. Hind coxa with short weak p up to half length of preapicals which are straight to gently curved. The male genitalia are shown in Figs 7-9. Holotype male USA, Arizona, Grand Canyon National Park (north rim), 1954 (W. L. Downes, Natural History Museum, London). Mycetophila riparia sp. n. Male. Coloration and wing characters as above species. Head and scutellum mainly yellow, brownish on disc. Proepisternum with 4-5 setae, mesepimeron with 6 setae. Middle tibia with 3 strong a (1 weaker basal), 3 strong d (1 weaker basal), 8-10 p. Figs 16-22. Male genitalia of North American species. 16-18, M. fisherae (Laffoon): 16 dorsal stylomere of gonostylus; 17 ventral stylomere; 18 aedeagus. 19-22 M. thioptera Shaw: 19 aedeagus, dorsal view; 20 aedeagus, lateral view; 21 dorsal stylomere; 22 ventral 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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