1872.) 283 
It is the most abundant species in England, and I also captured it 
commonly at Rannoch. 
4, Lutea, from middle Europe, is’ yellow, with only the antenne, the 
ocellar spot, the margin of the upper lamella of the hypopygium 
and the tarsi, black ; the lateral lamelle of the hypopygium are 
produced into a very long, obliquely descending cone, fringed with 
long black hairs ; the upper lamella is almost simple, and the slight 
pubescence seems pale; the female is much more bristly on the 
dise of the hinder half of the thorax than any other species of 
the group: concolor is darker, and has a differently shaped hypo- 
pygium. 
I have never found lutea in abundance, but have caught it in 
various localities in the south of England, and one female specimen, in 
company with concolor, at Aberlady. 
5. Concolor, nu. sp.; o 2. 
Lutea, antennis maculdque occipitali nigris; hypopygit lamelle 
laterales simplices, superior appendicibus duabus nigris ; femine thorax 
pilos perpaucos gerens. 
Long. corp. 2i—3% lin. Long. al. 3—8} lin. 
This species is allied to lutea, but is larger, more luteous; the 
occiput bears a moderately large black spot, frequently covering all the 
space just behind the eyes, and, in the only female I possess, covering 
the whole of the occiput, the front and face are frequently dark luteous 
with pale tomentum, the tarsi and extreme tips of the tibiz are gener- 
ally blackish, the wings are distinctly tinged with luteous ; the lateral 
lamelle of the hypopygium are rather short, simple, fringed at their 
tips with shortish black hairs, the upper lamella is small, with its 
angles produced into black lobes, clothed with short black hairs; the 
thorax of the female has no trace of the numerous black bristly hairs 
which are so conspicuous in lutea, 3, but is almost without hairs at all, 
the incisures of its abdomen, and a peculiar dorsal line are blackish, 
this line is broad at the base of each segment, becoming very narrow 
at the end of the segment; the antenne are quite black, while in lutea 
the second joint generally shows traces of yellow. Loew’s nana, from 
Styria and Carinthia, seems to have the upper lamella of the hypo- 
pygium somewhat similar, but even more divided, and the lateral lamelle 
more complex ; it is also considerably smaller (long. corp. 14s—2+ lin.), 
and instead of the occiput, it has the front blackish, with pale tomentum. 
