. Bulletin of the British Museum (Natural History) Entomology. . Mf 191 Figs 13-19 13, 14, Biselachista brachypterella (Elachistidae), Italian Alps, (13) male, (14) female. 15, 16, Symmoca signella (Symmocidae), Austrian Alps, (15) male, (16) female. 17, Ambloma brachyptera (Symmocidae), Canary Islands (Gomera), male. 18, 19, Megacraspedus dolosellus (Gelechiidae), Italian Alps, (18) male, (19) female. however, such wing dimorphism is extremely rare in the Lepidoptera and for reasons of intra- sexual competition is unlikely to evolve in the male sex. Wing reduction is also recorded in two orea
. Bulletin of the British Museum (Natural History) Entomology. . Mf 191 Figs 13-19 13, 14, Biselachista brachypterella (Elachistidae), Italian Alps, (13) male, (14) female. 15, 16, Symmoca signella (Symmocidae), Austrian Alps, (15) male, (16) female. 17, Ambloma brachyptera (Symmocidae), Canary Islands (Gomera), male. 18, 19, Megacraspedus dolosellus (Gelechiidae), Italian Alps, (18) male, (19) female. however, such wing dimorphism is extremely rare in the Lepidoptera and for reasons of intra- sexual competition is unlikely to evolve in the male sex. Wing reduction is also recorded in two oreal species. Symmoca profanella Zerny in the Haut Atlas has a strongly brachypterous female (Zerny, 1936: 142, pi. 2, figs 25, 26) whilst that of 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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