266 Mr. R. M‘Lachlan’s Descriptions of 
blotched with dark greyish-fuscous; the blotches are largest 
towards the base and on the apex; costal margin with numerous 
short transverse streaks. Posterior wings uniformly dull whitish, 
opaque, the veins scarcely darker. Legs pale testaceous ; the 
anterior and intermediate tibiae and tarsi broadly annulated with 
fuscous. Abdomen brownish-testaceous. In the male a broad 
elongated lobe proceeds from the middle of the upper margin of 
the last abdominal segment, and is truncated and notched at its 
apex; on each side of this lobe proceed the long, filiform, hairy 
and slightly-curved superior appendices, and from beneath on each 
side arises a fine cylindrical intermediate appendage, curved 
strongly outwards at the tip; app. inf. broad and triangular at the 
base, but ending in an elongated point; immediately below the 
app. inf. are seen two thickened straight pieces, which I regard as 
the lower penis-sheaths ; the penis is not apparent in my example. 
The coloration of the anterior wings somewhat resembles that 
of a faded example of Phryganea varia. 
Genus LEPTOPSYCHE, nov. gen. 
Antenne graciliores, alis triplo longiores; articulo basali inflato. 
Ocelli nulli, Palpi maxillares longi; articulo basali brevis- 
simo; 2° longiore, gracili; 3° et 4° brevibus, crassioribus, 
fere equalibus ; 5° gracillimo, praecedentibus in unum aequali. 
Ale fere nude ; antice elongate, angustee, ad apicem rotun- 
datee ; venula transversa obliqua medium versus inter costam 
et subcostam ; cellula discoidali aperta; furcis apicalibus 1?, 
24, 34, 43 et 5 instructe ; postice late, breves, margine cos- 
tali exciso; furcis apicalibus 27, 5? et 5% instructe. Pedes 
graciles. Calcaria 2-4-4, Abdomen breve. Appendices 
inferiores longee, graciliores. (Mas.) 
Antenne very slender, about three times the length of the 
wings; basal joint bulbous, scarcely so long as the head. Head 
transversely subquadrate above, with a small tubercle between the 
basal joints of the antenne; sides prominent, obliquely truncated. 
Eyes small. Ocelli none. Maxillary palpi long and slender, 
slightly hairy ; basal joint very short ; second long and slender; 
third and fourth each about half the length of the second and 
stouter; fifth very slender, thong-shaped, as long as, or longer 
than, all the others united. Labial palpi small, the terminal 
joint long. Prothorax forming a narrow collar. Mesothorax 
obovate, with a rounded tubercle at each shoulder. Anterior 
