1909.] 233 



Sympetrum striolatiim, Charp., abundant. LiheJlula depressa,Jj\m-\.,h\no ? on 

 August 4th ; L. quadrimaculata, Linn., abundant. Orthetnim cxrulescena, Fab., 

 very plentiful. Cordulegaster annulatus, Latr., several <? s. Anax imperator, 

 Leach, several c? s seen. /Enchna cyanea, Miill., abundant ; Msch. grandi!i,\i\\\n., 

 abundant. Lesfes spoma, Hans., very abundant. Erythromma naias, Hans., S , 

 on August 20th. Pi/rrhosoma ni/mphula, Su\z., some <? s at one of the ponds on 

 August .3rd ; Pyrrh. tenellum, Vill., very abundant. Ischnura elegans, Van der 

 Lind., ? on August 3rd, <? on August 4th. Agrion puella, Linn., a few at one of 

 the ponds on August 3rd. Enallagma cyatliigerum, Charp., vei*y plentiful. 



With S. metallica, this makes sixteen species, eight of which 

 were found in large numbers, while three of the smaller ones rose in 

 swarms at every step through the undergrowth. 



This year it is to be hoped that the dragon-fly will again be ob- 

 served in the locality, and the question as to whether the species is 

 resident put fur; her within reach of solution. 



In conclusion, I have to thank Mr. Herbert Campion most 

 heartily for the invaluable help he has given me in the writing of this 

 paper, and for the trouble he has taken in suggesting corrections. 



Oxford : June, 1909. 



LIMNOPHILUS FVSCINERVIS, Zbtt. : A TRICHOPTERON NEW TO 

 THE BRITISH ISLES. 



BY KENNETH J. MOETON, F.E.S. 



In a small lot of Triclioptera from Clare Island and elsewhere in 

 the West of Ireland, submitted to me by Mr. J N. Halbert, of the 

 National Museum, Dublin, I find a ^J of LimnopJiilusfiiscinervis, Zett., 

 in fairly good condition. Mr. Halbert tells me that he found the 

 specimen on June l7th of this year, while collecting at tlie eastern end 

 of Castlebar Lough (also known as Lough Lannou^h) within a few 

 miles of Castlebar in the County of Mayo. It forms a new and 

 most interesting addition to the fauna of the British Isles. 



In McLachlan's " Mon. Rev. and Synopsis," the localities given 

 for the species are Lapland, Sweden, Finland, Northern Carelia, 

 Lithuania, Tegel near Berlin, Konigsberg, Silesia, and Sarepta, while 

 a var., solufus, McLach., is recorded from Sarepta and Persia. More 

 recently it has been recorded by Petersen from Denmark. The 

 distribution is thus northern and south-eastern. 



13, Blackford Road, Edinburgli : 

 September 3rd, 1909. 



