NOTES ON BRITISH TRICHOPTERA. 133 



joint rather longer than the second, club-shaped, with long 

 hairs ; the second obtuse, curved inwards and downwards, 

 thickly clothed with short black hairs. This is distinct 

 from A. fimbriata, Pictet, which is much paler and with 

 differently formed appendices. 



Silo palUpes, Curtis. I met with a form of this insect 

 near Hythe, Kent, very small but scarcely distinct. 



Monnonia hasalisj Kolenati ; Plag. Stett. Ent. Zeit. 1859, 

 p. 150; Go'era hasalisj Kol. Gen. et Spec. Trichop. pt. 1, p. 

 98, 1 ; G. hirtUf Burm. Handb., Ent. 2, p. 924, 1 (nee 

 Fab. Curtis). New to Britain ; belongs to a group of 

 species distinct from that to which 31. liirta^ Fab., pertains, 

 and differing materially in their structure. In the males the 

 antennae are furnished beneath with a fringe of long hairs for 

 about a third of their length from the base ; the maxillary 

 palpi, instead of being knobbed at the end, are curved round 

 like a watch-spring; the costa in the anterior wings has a 

 fringe of long, silky, whitish hairs turned inwards; the hairs 

 . on the membrane are simple, not clavate ; in the females the 

 antennae and costa are not fringed, and the hairy clothing on 

 the wings is much less dense and paler coloured. 



The credit of the discovery of this species as a native of 

 Britain is due to Mr. Parfitt, who sent me up specimens for 

 determination in June last, taken near Exeter ; subsequently 

 I and Dr. Knaggs met with it commonly at Saltwood Castle, 

 near Hythe, Kent, and it has since been taken near Leominster 

 by Mr. Newman. It is slightly larger than M. hirta. 



Mormonia irrorata, Curtis = minor, Stephens. Of this 

 species, which has hitherto been excessively rare, I captured 

 about a dozen specimens in September in various localities in 

 South Devon. It frequents spots where there is a constant 

 flow of water, but little of it ; such as the sides of old stone- 

 quarries, where the water keeps dribbling down from slight 

 springs above. 



