L. arcas Rott. (= erebus Knoch) (83 e). Male similar to
euphemus, but the female quite black-brown above; particularly recognizable by the underside being coffee-brown and bearing only one row of ocelli, ab.
minor Frey are small specimens from Switzerland. In ab.
inocellata Sohn the ocelli of the underside are reduced, in ab.
lycaonius Schultz they are entirely absent. In the male-ab.
lucida Geest the forewing above has the blue lighter and more extended and the black discal spots reduced or obsolete. Throughout Central Europe, from Alsatia to the Ural, Caucasus and Armenia, and from Pommerania and the Lower Rhine to Italy. — Egg like that of
euphemus laid on
Sanguisorba. The young larva pale, later on purple-brown and finally probably yellowish-brown, at first at the flowers, later on at the leaves of
Sanguisorba. The butterflies have exactly the same habits as
euphemus, with which they frequently fly together, in July and August; they are usually still more plentiful than
euphemus in the places where they occur (damp meadows). (MHNT) Phengaris nausithous nausithous - Mokra Poland - male dorsal.jpg |
Phengaris nausithous ♂ (MHNT) Phengaris nausithous nausithous - Mokra Poland - male ventral.jpg |
Phengaris nausithous ♂ △ ==Similar species==