280 LDoceniber, 



jHera, wLi'ch are attached to warmer conditions of water, were 

 numerous. The character of the Trichopterous fauna as a whole is 

 suggestive of the English lake district and Killarney. Leptocerus 

 senilis, which seems to be absent from Highland lakes, Seiodes argenti- 

 punctella, hitherto known as British from Cumberland and Killarney 

 only, and QScefis furva, new to Scotland, were all more or less common ; 

 and no less than nine species of Hydroptilidce were found, all, I think, 

 unrecorded for the Sol way area, and including two species new to 

 Britain. 



The following 52 species of Trichoptera were observed : — 



Phryganea varia, F., wa8 found in some numbers concealed in the chinks of a 

 dry stone wall {i. e., a wall built without mortar), near Castle Loch. 



Olypholalius peJlucidus, Retz., occurred occasionally in Monreith Park. 



The genus Limnophilus was represented by L. rhombicus, Jj.,marmoratus, Curt., 

 luridus, Curt., and lunatus, Curt., odd specimens of which occurred in different 

 localities. 



A $ of Stenophylax permistus, McL. (= concentricus, auct.), was given to me 

 by Mr. David McDowall, gamekeeper, at Mochrum Loch, and a single ? of S. lati- 

 pennis (?) was taken at Monreith. (I am indebted to Mr. Service for two perfect 

 specimens of Stenophylax vihex from the Solway district, where they were taken by 

 the Rev. Mr. Little sometime in " the thirties." The species is not, I think, 

 recorded from Solway previously). 



Sericostoma pentonatmn, Sponce. — This species was very common at the smaller 

 burn at Monreith, and empty cases could be gathered in numbers from the bed of 

 the stream. Silo pallipes, F., not common. Ooera pilosa, F., occurred at the 

 Mochrum Lochs. Lepidostoma hirtum, F., at the Lochs just named, and common 

 at the smaller burn at Monreith. 



BercBa maurus, Curt., was common at dripping rocks on the shore. 



Of the genus Leptocerus, L. fulvus, Ramb., occurred at the Mochrum Lochs, 

 but was probably just appearing ; L. senilis, Burm., was on the other hand common ; 

 L. dissimilis also occurred at one of the lochs, and aterrimus, Steph., and cinereus, 

 Curt., were common ; L. bilineatus, L., was found at Monreith Burn. {L. nigra- 

 nervosus, Retz., occurs in the Solway area, where it has been taken by Mr. Service 

 at one of the lochs in Xirkcudbrightshire). 



Myslacides azurea, L., longicornis, L., and Trianodes bicolor, Curt., were 

 common. All the British species of CEcetis were taken excepting notata, Ramb. ; 

 (E. ochracea. Curt., lacustris, Pict., and testacea. Curt., were all common at the 

 Mochrum Lochs, while furva, Ramb., appeared to be restricted to the outlet of 

 Fell Loch. 



Setodes argent ipunetella, McL., a charming little insect, was abundant at 

 Mochrum Loch ; it was not observed at the other lakes of the series. 



Hydropsyche instahilis, Curt., appeared to breed in both the burns at Monreith, 

 and the perfect insects were always to be seen dancing in little companies all along 

 the sliore in the evening. 



Philopotamus montanus, Donov., frequent at the smaller burn near Monreith. 



Wormaldia occipitalis, P., at dripping rocks, and W. siihnigra, McL., on Mon- 

 reith Burn. 



