ATLANTIC FORMS OF SYMPETRUM STRIOLATUM, CHARP. 5 
believed to be from the island of Coll. In these the boundaries 
of the middle field are heavily shaded, and the legs are narrowly 
lined with yellow. Further, Mr. King reports two males from 
the island of Islay (July 18th), which are of the true western 
Scottish form, the lateral markings of thorax agreeing with 
diagram No. 2, excepting that spot @ is rather larger, the dark 
boundary of the upper part of the field being narrow. 
Three examples from Tayvallich, in Kintyre, deserve special 
notice (two males and one female, coll. A. M. Stewart, Paisley). 
The tendency of the line at the base of the frons to go down- 
wards is not so much pronounced, being more strongly marked 
downwards in the female than in the males. ‘'he narrow 
middle field of the thorax is distinctly outlined in fuscous, but 
the diagonal line is less clearly developed (partly, I think, a 
matter of age). Thoracic spots rather larger than in the northern 
examples, but c, p, E always well separated by broad black 
margins; in one male a and B widely separated ; in the other 
two connected by a narrow neck. The yellow spots on the 
metasternum long oval, the yellow tails becoming definite long 
wedge-shaped markings; following these is an irregular semi- 
circular black marking of varying breadth, the space enclosed 
being yellowish, but tending to become fuscescent and probably 
becoming blackish with age. In the males the narrow yellow 
lines on the femora are distinct ; but in the female they tend to 
become infuscated. Ventral surface of abdomen perhaps some- 
what discoloured, but apparently not differing from the northern 
specimens, and in great part black. . 
The above are from the northern part of Kintyre, and they 
constitute a natural link with the Irish forms. The extreme 
southern point of the long peninsula of Kintyre is only a matter 
of twelve and a half miles distant from the Irish coast, surely a 
mere trifle to a migrating Sympetrum. 
From Emyvale, Co. Monaghan, Ireland, I have before me a 
series of four males and three females. They are rather young, 
but they have much in common with the Scottish forms. The 
femora are lined with yellow, but the legs are over all darker 
than in the typical forms. The thoracic lateral spots are variable 
in size, but in some they are quite as small as in some of the 
Scottish specimens; A, B, c, D, E are completely isolated in all 
of them; the narrow middle field is always outlined in fuscous, 
and in three of them (one male and two females) the diagonal 
line is clearly marked. Six of these have more or less dark 
shading at the side of the eye. 
By the very kind assistance of Mr. J. N. Halbert, I have been 
able to examine a series of specimens obligingly lent by the 
National Museum, Dublin, and originating from many different 
points in Ireland. They are from the following localities, viz. :— 
Males (one from each locality) :—1. Rostrevor, Co. Down, 
