108 



[Miiy, 



In' the $ those appendages that are 

 visible consist of three pairs : the su- 

 perior are large, flat, turned inwards, 

 and touching or crossing each other at 

 their rounded tips ; the inferior are 

 shorter, broad at their origin, but be- 

 ^coming pointed at the tips ; the median 

 pair in the examples before me vary 

 (as do the inferior pair) according to 

 their position, they seem to be flattened 

 and are ordinarily applied against one 

 another, but the flat surface is some- 

 times exposed, giving them a broad 

 appearance. Seen from the sides the 

 appendages appear forcipate when the 

 lower pair is upturned ; they are, 

 however, sometimes open as in fig. 2. 

 Ventral lobe moderate. 



Expanse of fore- wings, $ , about 6mm.; the $ slightly larger. 



Taken in July by beating pine trees on the shores of Loch Mor- 

 lieh, Grlen More, Inverness-sbire, 1046 feet {Morton and King), a large 

 and beautiful lake surrounded by extensive pine forests. 



Apparently a true Hydroptila, with well developed lobes on the 

 head. It is a very distinct species, from its genital appendages, 

 although in the closed forcipate condition of these it simulates H. 

 forcipata, and might, on a cursory glance, be confused with that 

 species. The differences are, however, abundant ; in the present 

 species the superior appendages are broad and flat at the apex, whereas 

 in a, forcipata they are slender and acute; the inferior appendages 

 are relatively shorter than in H. forcipata. 



Fig. 1, apex of abdomen from beneath ; 2, apex of abdomen from side (both from dry examples) ; 

 3, apex of abdomen from beneath, more enlarged (from an example prepared and mounted 

 in Canada balsam. 



Htdeoptila serrata, n. sp. 



Antennae blackish-fuscous, with a pale ante-apical space. Vertex densely clothed 

 with yellowish-white hairs. Palpi yellowish-white. Legs testaceous. Anterior 

 wings dark grey, raised hairs yellowish, costal fringes blackish, with a yellowish 

 patch before the apex, tip of the wing within the fringes also yellowish ; posterior 

 fringes dark grey. Hind-wings dark grey with nearly concolorous fringes, those 

 on the costa being darker. 



In the (J the inferior appendages seen from beneath are of moderate length, 

 tapering, and very slightly turned inwards ; between their bases and apparently 



