216 Dr. T. A. Chapman’s 
cesses of the sickle to broaden out in something of the 
zwthiops manner, whilst in manto they come to a point. 
After examining a large number of the /igea group, with 
varieties adyte, ajanensis, ocellaris, &c., I do not feel at all 
clearer than before as to there being more than one 
species. The clasps of ligea, adyte and ajanensis (Fig. 1) 
have a rather bolder shoulder or lobe, marked off both at 
the neck and towards the base, and those of one or two: 
specimens of ocellaris go to the contrary extreme in having 
very little neck; whilst ewryale (Fig. 2) usually has a 
neck similar to ligea but the lobe is not definitely marked 
off towards the base. Still, even ocellaris sometimes 
makes an approach to the ligea form, so that it is difficult 
to avoid a suspicion that the more pronounced character 
in ligea is due to its being usually a larger and better-fed 
insect. 
Without being able to give any very good reason for 
the belief, beyond an impression gained in the field, 
I think that the two recognised forms, ligea, with its vars. 
adyte and ajanensis, and ewryale, with var. ocellaris, whilst 
usually distinct, are not always so, and in some places 
intermix. The clasp differences are not great enough to 
render this otherwise than likely where they occur to- 
gether on the same ground. 
The Swiss form known as cecilia is no doubt manio, 
but the Pyrenean cecilia (Fig. 3) cannot be so easily dis- 
missed. In it the clasp is similar to that of manto, with 
rather more pronounced styles; but there is the essential 
difference that the lateral processes of the sickle are 
widened out like those of ligew, at least as much as in 
that species: while this seems to make it impossible 
for it to be manto, it is difficult to regard it as a form of 
euryale. An examination of the other portions of the 
appendages gives us no further assistance; there is a 
slight difference in average size, but varieties in each form 
overlap. I think we must conclude that cxcilia (Pyre- 
nees) 1s not a variety of manto, and if it be not a variety 
of ewryale it is a distinct species. Were it a variety of 
euryale one would expect to find some trace of the 
chequered fringes. I place it therefore as a good species: 
and in the first division of Group I. 
A new species which Mr. Elwes proposes to describe 
under the name vidleri (Fig. 4), has very much the 
aspect of a form of #xthiops, but the clasp prepared by 
