THE 



TRANSACTIONS 



OF THE ^^^ r>fr,-h.^- 



^^ Z*>!o,r.. ^'<t 



OCT li 1945' 



YORKSHIRE 



NATURALISTS' UNION. 



PART 6. 



Issued to the Members for the year 1881. 



CONTENTS 



Series D — Articulata — ^Vol. II., Sheets b, c, d, e, f. 



List of Yorkshire Lepidoptera. Geo. T. Porritt, F.L.S. 



DiURNi (Butterflies) pp. 15 — 16. 



NocTURNi ... pp. 16 — 30. 



Geometry pp. 31 — 62. 



DrepanuL/?!; .. ... ... p. 63. 



PSEUDO-BOMBYCES pp. 63 — 66. 



NocTU^ ... pp. 67 — 94. 



W. SATCHELL AND CO., 12, TAVISTOCK STREET, W.C. 

 LEEDS: TAYLOR BROS., PRINTERS, ST. ANN STREET. 



JULY, 1883. 



