MAZARINE BLUE BUTTERFLY. 
231 
the wings. The under side is ash coloured, with a 
discoidal black crescent, edged with white, on each 
wing, and a transverse series of ocellated dots to- 
wards the hinder margin ; on the hinder wings this 
series is very irregular, and there are several scat- 
tered spots towards the base. Fringe of the wings 
white. 
This delicate little butterfly, the smallest of the 
European Polyommati, seems to occur, but not in 
great abundance, in most parts of the kingdom. Nu- 
merous localities, scattered over the southern parts of 
England, have been cited for it. Mr Wailes informs 
us that it is common on the magnesian limestone 
district near Newcastle : it is also found in Woods 
near Durham ; and we have Been specimens from 
most of the southern counties of Scotland. 
MAZARINE BLUE BUTTERFLY. 
Polyommatus Acts. 
PLATE XXXI. Fig. 4. 
Polyommatus Acis, Stephens — Pap. Cymon, Lewin, pi. 38. 
f. 6. & 7 — Polvom. Cymon, Jermyn — Lyceena Cymon, 
Leach — Pap. Argiolus, H'ubner. 
Expands about 13 or 14 lines, the male deep blue 
above, glossed with violet, having a narrow black 
border to all the wings, and a white fringe. The 
