. Bulletin of the British Museum (Natural History) Entom Supp. . 198 199 Figs. 196-199. Pupal gill form in Ethiopian subgenera of Simulium. some alcocki-group. 197-199, Phoretomyia. 196, Pomeroyellum,. 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 Museum (Natural History). London : BM(NH)

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