68 Tmnsactions. 



NOTES ON A COLLECTION OF TRICHOPTERA FROM 

 THE STEWARTRY. By F. G. Binnie, Glasgow, Cor- 

 responding Menibei-. 



Head March Gth, 1S80. 



I am very glad to have had the opportunity of examining a 

 collection from a district hitherto, I believe, nnworked as regards 

 this group, and I hope Mr Service will continue his work in this 

 neglected order. The majority of the species represented are 

 characteristic of running water, although stagnant water species 

 are not absent, as those of the genera Phryganea, Limnojyhilus, 

 AnahoUa, and in part the genus Leptocerus. I miss, however, 

 among the stagnant water forms such common species as Lim- 

 nophilus marmoratus, Jlavicornis, and vitatus, associated almost 

 invariably in this district with Limnophilus lunatus. Doubtless 

 they will be found on further search. All the British families are 

 represented, except the Hydrojjtilidce, which is composed of small 

 species difficult to resolve. It would be premature, with the 

 existing paucity and inadequacy of material, to institute any 

 comparison between the present collection and the species of the 

 Glasgow districts. I may note, however, that with the exception 

 of LimnoiMlus aitricula, Leptocerus anmdicornus, and Ghimarrha 

 marginata, all are repi-esented in the district. The various species 

 of Caddis-flies do not yet possess popular and familiar English names 

 like the Lepidoptera. Perhaps this is no loss if we consider how 

 unmeaning many of these English names are. Their life histories, 

 where worked out, offer little that is striking, and only interest 

 the enthiisiastic Trichopterist or the student of Evolution. Anglers 

 use their larvae, when extracted from their cases, as ground-bait, 

 and also make use of the wings of some species, as Halesus 

 radiatus, in the manufacture of the artificial fly. Mr J. J. King, 

 during a visit to your district in 1879, captured several species 

 not represented in the present collection. These I have marked 

 with an asterisk. I have followed the nomenclature of Mr 

 M'Lachlan in his " Monographic Revision of the Trichoptera of 

 the European Fauna ; " but, for the convenience of any one who 

 may not possess the work, I have placed within parenthesis the 



