76 Mr. Kenneth J. Morton’s notes on 
yellowish; legs dingy testaceous, with greyish pubescence. Ante- 
rior wings brownish, with yellowish white markings arranged in 
what appears to be the usual manner in the genus, viz., a slight 
marking near the base, an oblique fascia about the middle inter- 
secting the fringes of both margins, an ill-defined patch beyond 
the middle; nearer the apex is another fascia, often vague and little 
more than a strong marking on the costa and one on the inner 
margin; the apex itself is also usually pale; costal fringes nearly 
black, save where intersected by the whitish markings; inner 
margin with dark grey fringes. Posterior wings dark grey and 
iridescent, with concolorous fringes on the inner margin; costal 
fringes darker. In the male there is an elongate dorsal plate, with 
incurved edges; this plate narrows towards the apex, which is 
slightly upturned when viewed from the side. Penis long and 
slender, with downturned point. Lower penis-cover with dilated 
angulated apex; from the angles radiate short hairs or spines, and 
from the outer margin arises a strong down-turned blackened 
hook. ‘The inferior appendages (?) are short, rounded and some- 
what incurved. Ventral processes long, narrow and contiguous, 
with blackish tips. Lobe of ante-penultimate ventral segment 
long. In the female there is a rather long and slender ovipositor. 
Expanse of male about 6 mm.; female slightly larger. 
Italy (Apennino Pistojese, 27th July and 5th August), 
5 males and 5 females (aton). 
In almost all respects different from any of the known 
HKuropean species. 
Puate V., fig. 1, apex of abdomen of male, from beneath ; 
2, same, from side. 
Hydroptila fortunata, n. sp. 
Antenne about 35-jointed in the male, inclining to fuscous in 
colour; vertex clothed with whitish hairs ; palpi yellowish ; legs 
yellowish testaceous. Anterior wings brownish, darker on the 
costa; markings white, arranged pretty much in the usual way; 
apex margined with yellowish white; fringes of inner margin dark 
silky grey. Posterior wings greyish, darker at tip, with con- 
colorous fringes; iridescent. In the male there is a large, semi- 
transparent, dorsal plate, with usually much incurved lateral 
margins (but apparently varying in this respect in the dry insect) ; 
in certain aspects its outer margin appears excised. The penis is 
slender, with a very slight dilatation before the apex, which termi- 
nates in a sharp twisted hook (like the last turn of a cork-screw . 
There is probably a single spiral sheath. Of the lower penis-cover 
