British Trichoptera. 333 



HYDROPTILID^. 



Agraylea, Curt. *pulchricornis {Pict. !), 



multipunctata, Curt. *forcipata, Eaton. [Eatn. 



Allotrichia, M'Lacli. Ithytrichia, Eaton. 



*pallicornis, Eaton. *lamellari8, Eaton. 



Hydroptila, Dalm. Orthotrichia, Eaton. 



sparsa, Curt. Hi/droptila, partim. 



tineoides, Dalm. ? angustella, M'Lach. 



*occnlta, Eaton. Oxyethira, Eaton. 



*femoralis, Eaton. Hydroptila, partim. 



tineoides, Dalm. '? costalis, Cart. 

 *sp. nov. 



Summary. 



The Catalogue of 1870 included 136 species. I now 

 enumerate 152. Twenty of these are indicated by an 

 asterisk, therefore are additions to the fauna. The 

 discrepancy of four species is due to the fact that 

 Sericostoma midtiguttatum has been sunk as a variety of 

 the female of (apparently) our only species of the genus ; 

 Philopotamus scoticus has been sunk as a variety of 

 P. montanus (olim scopulorum) ; Philopotamus montanus 

 of the Catalogue (= Indificatus, M'Lach.) has been 

 erased as based upon insufficient evidence of British 

 origin ; and Pohjcentropus Parfitti proves to be the female 

 of Holocentropus duhins of this List. 



Of the twenty additions one, viz., Hydropsyche ornatida, 

 is perhaps a little doubtful, being based as British upon 

 one female example only, the identity of which requires 

 confirmation. 



One species of Hydroptila bears no specific name. 

 This will be published in a new Supplement to the 

 'Eevision and Synopsis,' which is in an advanced state. 

 I do not consider that a list or catalogue is the place 

 in which to indicate new species by names without 

 descriptions. 



It is not likely that the new Supplement, announced 

 as in preparation, will occasion any serious discrepancy 

 in the list, either in sequence or nomenclature. It may, 

 however, be remarked that Wallengren has recently 

 (' Entomologisk Tidskrift,' vol. i., 1880) efl'ected a some- 

 what minute generic subdivision of the family Phryganeidce, 



