nictitans group of the Genus Hydroecia. 747 
HI, crinanensis and H. americana. The “cornuti” are very 
short, even in length, and about twenty-four in number. 
It is, of course, quite possible, though extremely unlikely, 
that this insect may have been differentiated from the 
other Hydroecias, and have received a name. I would 
therefore suggest, conditionally, the name of H. asiatica, 
after the continent in which the label asserts it was 
captured, and append a description. 
Hydroecia asiatica, g. Of the size of H. nictitans. F.-w. 
reddish-brown, orbicular and reniform stigmata somewhat paler, 
the former indistinct ; the latter nearly full, being defective in the 
centre towards the base of the wing, the two lobes exteriorly 
uniform, the interior lines suffused. H.-w. lighter basally. From 
a single male labelled Syrt Naryn, Ost Turkestan. H. Rolle, Berlin, 
S.-W. N. 
A further point of interest in this group of insects is 
the heavy pair of pencils of hairs upon the early abdominal 
seginents, and the pockets in which they are contained. 
These are very evident, except in H. nictitans, in which 
species, if they occur, it is only in a much reduced and 
delicate form. 
The females of the group provide fewer points for 
particular description. The main details upon which they 
can be differentiated are few, and as they present con- 
siderable discrepancies, I must acknowledge that I offer 
these notes with much diffidence as regards paludis and 
lucens, I depend upon the form of the genital plate and 
the lodix (7. e. the posterior edge of the seventh sternite). 
In H. nictitans the genital plate is wide and shallow, 
the central excavation commencing from near the ex- 
tremities, and presenting a wide right-angular cut. The 
lateral creases are near the upper (posterior) extremities. 
The “lodix” has a central narrow excavation. 
In H. paludis the genital plate is wide and deep. The 
central excavation is shallow and rounded. ‘The lateral 
creases are below the widest part of the plate. The lodix 
has a central deep, narrowly triangular, excavation with a 
rounded end. 
In H. lucens the genital plate is wide and deep, slightly 
narrower, more substantial, and perhaps deeper than in 
H, paludis. The central excavation is shallow and 
rounded. The lateral creases are below the widest part 
of the plate. The lodix has a central deep triangular 
