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Duplicates: Bombus lapponicus and Vespa norvegica. Desiderata : types of 

 many British Aculeata. — R. Butterfield, Wilsden, Bradford. 



Duplicates : Aulonium sulcatum, perfect specimens. Desiderata : Colydiidse 

 and specimens of nnmerons rare and local Coleoptera. — C. J. C. Pool, 12, Chase 

 Side, Enfield, Middlesex. 



Duplicates : a few fine bred grossalariata ab. varleyata. Desiderata : euphor- 

 biae, lineata, andrEeniformis, ilicifolia, ulvae vars. bipunctata and wismariensis, 

 nebulosa var. thompsoni, palustris 9 . oceilaris, exulis, satnra, ni, frasini, roboraria 

 black var., fuliginaria, innotata, stevensata, gfracilalis, salicalis, unionalis, serairufa, 

 terebrella, verrucella, rubrotibiella, tesseradactylus, graphodactylus, and extreme 

 varieties. — Geo. T. Porritt, Edgerton, Huddersfield. 



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\ MONOGRA^PHIC REVISION AND SYNOPSIS OF THE 



*^ TRICHOPTERA OF THE EUROPEAN FAUNA. By Robert McLachi.an, 

 F.R.S., F.L.S., &o. Price, £3 10s. 



First Additional Supplement (witii 7 plates). Price, 8s. 



London : Gurney & Jackson, 10, Paternoster Row, B.C. 



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