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Journal of the Lepidopterists' Society 37(3), 1983, 258
ABERRANT GLAUCOPSYCHE LYGDAMUS COUPERI GRT. (LYCAENIDAE)
On 11 June 1977, an aberrant female Glaucopsyche lygdamus couperi Grt. was collected at Mer Bleue Bog, near Ottawa, Ontario. This species is common in open areas throughout the Ottawa area wherever the hostplant, common vetch (Vicia spp.), grows. The specimen was collected in a field bordering the bog while it rested on the underside of a vetch leaf.
Figs. 1, 2 show the ventral surfaces of a normal (Fig. 2), and the aberrant specimen (Fig. 1). In the aberrant specimen, the normal ventral postmedian row of spots is elongated, especially on the secondaries, where they form a series of roughly rectangular bars, as compared to the round or oval spots of the usual form. The specimen has been deposited in the Nova Scotia Museum collection, Halifax, Nova Scotia. I would like to thank Mary Primrose of Dalhousie University, Halifax, Nova Scotia, for photographing specimen.
Kenneth Neil, Department of Biological Sciences, Simon Eraser University, Bur-naby, British Columbia, CANADA V5A 1S6.
FlGS. 1 & 2. Females of Glaucopsyche lygdamus couperi, ventral surface: 1, aberrant specimen; 2, normal specimen.