Large Heath
  Coenonympha tullia
 


Photograph by Tony Mainwood.


DESCRIPTION

Similar colours to Small Heath, but more diffused, giving an overall greyish effect. Eye spot located outwith pale streak on forewing, unlike Small Heath.

Wingspan 35 - 40mm.

LIFE CYCLE

Single brooded. Ova laid singly on hare's-tail cottongrass, hatching in about 15 days. Larvae feeds from July to September, hibernating until March, and becoming fully grown by May/June. Pupal stage lasts about 3 weeks. In the north, this species may have a 2 year life cycle, remaining as a larva all summer and hibernating in a second winter.

FLIGHT TIMES

July to August.

REGIONAL DISTRIBUTION

Prefers boggy areas and damp acidic moorland. Occurs in suitable habitats in inland Moray, Highland, the Western Isles and Orkney. Absent from Shetland.

LINKS