56 Mr. Kennetli J. Morton on 



All those entomologists who assisted me with the 

 Nemourse have contributed help with the present paper. 

 Special thanks are due to Mr, McLachlan, not only for 

 allowing me to examine material which may be called 

 classical, but also for many valuable hints relating to 

 bibliography. 



Nemoura Sahlhergi, n. sp. 



In the dry insect, head and pronotum are shining blackish ; 

 antennte nearly black ; pronotal plate faintly brown on anterior 

 margin, indistinctly rugose on middle of disc, about same breadth 

 as the head without the eyes, borders ill defined, lateral margins 

 receding slightly posteriorly. Meso- and meta-nota also shining 

 blackish, abdomen dull black. Legs dingy testaceous, femora, 

 and apices of tibi« and tarsi fuscous. Wings greyish, sub-hyaline, 

 iridescent, neuration pale fuscous, and faintly clouded with 

 fuscous about pterostigma and x nervures ; in the hindwings the 

 superior cubitus seems to leave the radius at a considerable distance 

 from the basal cell. 



A species of the avictdaris group, not presenting strong cha- 

 racters, excepting in the appendages of the i^, which are very 

 distinct. Broad at the base, these appendages become more 

 slender in the shaft, and at the apex there is a broad membranous 

 expansion internally, the chitiuized portion forming an out-turned 

 short hook obscurely two-pointed and inwards being produced into 

 two long acute spears. Exp. of forcwings, 14 to 17 mm. 



I have seen a number of examples from Utsjoki, in the 

 region of Lake Enara, Finnish Lapland, taken by Dr. 

 John Sahlberg, to whom I have pleasure in dedicating 

 the species. 



Tseniopteryx Risi, n. sp. 



T. trifaseiata, pars. auct. 



Head dark reddish-brown or blackish, antennas blackish, long, 

 slender, composed of elongate joints, pronotum blackish, the fore 

 and hind margins sometimes reddish-brown, elongate, narrower in 

 front than behind ; meso- and meta-nota shining blackish, abdom en 



