Asynarchus ecenosus, Curfc. ; Lynton, one S of large size : I think this had not 

 previously been observed in England south of the Yorkshire moors. 



Stenophylax stellatus, Curt. ; Dunster and Lynton, a few. S. concentricus, 

 Zett. ; Lynton, one $ . »m«,-, -^ 



Micropterna seqnax, McLach. ; Lynton, one $ . 



Halesus digifahis, Schrk., and H. radiatus, Curt. ; one <? of each near Dunster : 

 probably somewhat too ear'y for these late insects. 



Drusus annulatus, Steph. ; everywhere at streams, the commonest species in the 

 district : those on low ground near the sea distinctly smaller and paler. 



Apatania muUebris, McLach.; Lynton district, one ?, a new locality: the 

 determination is presumably correct, but more material is desirable. 

 Seeicostomatid^. 



Sericostoma personatiim, Spence ; Dunster and Lynton, a few ? only, flying at 

 sunset : these may be looked upon as late stragglers. 



Silo paUipes, F. ; Dunster, rare ; Lynton, apparently common. 

 Leptoceeid.*;. 



Odontocerum albicorne, Scop. ; Dunster, a few ; Lynton, in abxmdanee. 

 Htdeopstchid^. 



Hydropsyche inxtahilis, Curt. ; Lynton. 



Philopotamus montanus, Donov. ; generally distributed : those from high up 

 the streams are very small, and simulate Polyrentropus. 



Wormaldia occipitalis, Pict. ; Dunster district, not rare high up, especially at 

 the sources of the streams on the hill sides : the examples are large and dark. W. 

 suhniqra, McLach. ; Lynton, one $ . 



PoJycentropus flavomaeulatus, Pict. ; Dunster and Lynton, a few. P. Kingi, 

 McLach. ?; three g from Lynton perhaps belong here, but I am by no means satisfied 

 about them : perhaps they form a distinct species, which I think I possess from 

 another locality. I have not yet seen either Kingi or this form alive, and the anal 

 parts are not easy to discriminate in dry examples. 



Tinodes wceneri, L. ; Lynton : the examples ai'e small. 

 Rhyacophilid^. 



Rhyacophila dorsaJis, Curt. ; abundant over the district, but chiefly confined 

 to the lower portion of the streams. Rh. ohJiterafa, McLach. ; locally abundant 

 over the district, seldom seen at the lower portion of the streams ; the ? was not 

 observed : in my " Trichoptera Britannica " (1865) it is stated that T had seen an 

 example of this species from Norlh Devon, no locality mentioned ; it may have been 

 from Lynton. Rh. tminda, McLach. ; not observed near Dunster ; abundant in 

 Horner Yalley, near Porlock, but only one ? ; also Lynton : this very local species 

 prefers torrentine cold clear streams filled with boulders : a new locality. At the 

 streams of South Devon flowing from Dartmoor, where tnuiida was first detected, it 

 is very abundant ; obliterata has not yet been discovered at these streams, but may 

 possibly occur at points higher up which I have not visited. 

 Qlossosoma vernale, Pict. ; Timberscombe, one ^ . 



Agapetusfuscipes, Curt, ; Dunster, abundant on low ground near the sea and 

 higher up : those from the low ground are very much the larger. Lynton. 



Thus it will be seen that 26 species were taken in the district, a 

 very fair number for an English hilly moorland in autumn. 



Lowisham, London : October 2\th, 1890. 



