232 
SATYRIDM. 
2. — M. Lachesis, Hiib. ii. 3, 3 ; Hiib. 186-7 ; 0. i. 1, 247 ; Godt. 
ii. 19, 1, 2; Mill. Ic. 62, 4, 5. 
Expands from 2-25 to 2-50 in. Somewhat resembles M. 
Galatea, but, besides being on the average larger than that species, 
it has the ground colour white in both sexes. There is no black 
patch at the base of the fore wings, and no central black band on 
the hind wings, which, with the exception of a black spot on the 
costa, are plain white, with a hind-marginal black band, on which 
are some ocellated spots, especially well-marked in the female. 
Under side somewhat similar to that of M. Galatea, but lighter ; 
the hind wings have five distinct black ocellated spots. PI. LV., 4. 
Times of Appeakance.- — May and June. 
Habitat. — The Spanish Peninsula ; and the South of France, 
in Provence, Languedoc, Roussillon, and at Vernet-les-Bains, 
where it is said to replace M. Galatea, which in its habit it closely 
resembles. It seems to be confined to the above localities, though 
there are some very closely-allied species both in Asia Minor and 
the Amur ; they, however, are considered distinct from Lachesis. 
Laeva. — “ Fusiform, the last segment without a forked tail, 
and entirely pubescent, like the larva of its congener, Cleanthe. Its 
general colour is flesh-tint, with the ordinary lines of a pale red. 
The transverse marks showing on each segment are terminated by 
a longitudinal line, straight and continuous, placed beneath the 
line of the stigmata. The ventral surface is paler than the dorsal, 
and is not marked with lines. The head is yellow, globular in 
shape, with the eyes and mandibles marked with brown. The legs 
are light brown ; the stigmata large and black. It lives, like its 
congeners, on different species of grass ; the Lamarchia aurea, L., 
however, seems especially to form its food.” — Mill. Icon. 1865, 
p. 92. 
VARIETY. 
Cataleuca (ab.). Stand. Cat. p. 22. — An aberration occurring 
in Central Spain in which the dark markings are absent from the 
under side of the hind wings ; it thus corresponds to the aberration 
Ijcucornclas of M. Galatea. 
