[NoTi ■; 
ascending, the middle joint tufted at its apex, the last joint longer than the 
slender, pointed. Legs long and slender, the posterior tibise thickened with ^ 
at the middle, and at the apex. The first pair of spines in the posterior 
almost equal, the second pair shorter than the shortest spine of the first pair 
anterior wings cleft more than the third part of their length. The segt 
Blender, the anterior segment with no posterior angle, the posterior segment 
the angle distinct. The segments of the posterior wings slender, the third seg 
linear, and with no anal angle. The anterior wings flat, when at rest coverin 
posterior; the inner margin of the anterior wings not toothed, the fringe o, 
third segment in the posterior wings with some black scales near the apex. i 
of the anterior wings eight in number; the 1st and 2nd separate, springing 
the base, the 3rd from the posterior margin of the cell, the 4th dividing into' 
branches, running from the posterior angle of the cell to the posterior segi' 
the 5th coming out near the anterior angle of the cell, and running to the post ' 
margm of the anterior segment, the 6th either two or three-branched rn. 
from the anterior angle of the cell to the apex of the anterior segment th. 
from the anterior side of the cell, and the 8th from the base. The cell dist 
closed, the transverse vein very slender, somewhat arched. The veins o:' 
posterior wings three; the 1st two-branched, running to the first segment 
2nd also two-branched, running into the second segment, the 3rd simply roji 
into the third segment. No cell. ■ ' 
II 
The Swedish species of this genus are six, viz. .—1, O. pilosi 
2, 0. hieracii, 3, O. ericetorum, 4, O. ohscurus, 5, O. didacUjlus, an., 
O. Bohemani. Of these, two only have been as yet proved tot 
British, namely, O. piloselU and O. ohscurus, although it is proW 
that O. hieracii, if not O. ericetorum and O. didactylus, will, if caref ■' 
sought for, be added to our lists. None of the lighter coloured spe^ 
are met with in this list. In England we have four species o/ 
O. pilosell(s, O. teucrii, O. ohscurus, and O. Icetus. 
This last was added to our lists last year by the Hon. MrJ 
Grey, who caught it at Thetford, a locality already celebrated fori 
southern types. One specimen I have (thanks to the kindness of^ 
captor) had the privilege of examining; it certainly diifers in sd 
particulars from any specimen of Icetus which I have seen before, ' 
as it is certainly most closely allied to, if not identical with t^ 
species, it seems most desirable to call it Icetus for the present, awlit,' 
the decision of Professor Zeller. to whom it is referred for examinatif 
The addition of one of the lighter coloured forms of the genus to J 
British lists is, however, full of interest. On the continent, the la^ 
feeds on the flowers of Andryala sinuata ; it is probable that here so 
species of Rieracimn would be chosen. 
