Short-tailed Blue (Cupido argiades)
Species

Male. Taken at Irinovac, Croatia, on June 6th 2017.
(1/320th sec at f14. Approx 4x lifesize. © David Hastings)

Underside. Taken at Rupite hot springs, Bulgaria, on June 25th 2014.
(1/500th sec at f13. Approx 4x lifesize. © David Hastings)

Mating pair. Taken at Irinovac, Croatia, on June 6th 2017.
(1/640th sec at f14. Approx 4x lifesize. © David Hastings)

Description

Wing span: 20 - 30mm

The male Short-tailed Blue has a purplish-blue upper surface with two very fine short tails. The female is sooty brown. The orange spots on the underside of the hindwing are distinctive.

It is found in central and southern Europe, but is generally sporadic and uncommon. It is a very rare vagrant in southern England.

It is found in cultivated fields, bushy meadows and grasslands, open scrub and forst edges.

It is bi-voltine, late April/mid-June and July/August

The primary larval foodplants are Bird's-foot Trefoil (Lotus corniculatus), Lucerne (Medicago sativa), Red Clover (Trifolium pratense) and Tufted Vetch (Vicia cracca).

Sightings

19-Jul-2018 : Vercors Natural Park, France

07-Jun-2017 : Irinovac, Croatia
06-Jun-2017 : Irinovac, Croatia
05-Jun-2017 : Goranje Taboriste, Croatia
22-Jul-2015 : nr Sandanski, Bulgaria