THE TRANSACTIONS ENTOMOLOGICAL SOCIETY OF LONDON FOE THE YEAR 1886. I. On tJic classification of the Pterophoridae, By E. Meyrick, B.A. [Read August 5th, 1885.] The following notes include (1) an attempt to settle definitely the systematic position and rank of the group, (2) a partial revision of the genera contained in it, and (3) descriptions of some new exotic species. The first question does not appear to me to present anything like the difdculty which is popularly expected of it. The suggestions of one writer that the group should be included amongst the Bomhydna, and of another that it has direct affinity with certain Hymeno-2)tera, I regard as ridiculous conjectures, quite without any reasonable foundation. Others, again, have con-fused the issue by classing among the Ptcrophorida genera which have no real connection with the family. My own conclusion is that the group constitutes a family of VyraUdxna, of similar value with the Botydidce and other allied families, and that it may be placed, together with the Tincodid(c and Oxychirotidce, as I have elsewhere defined them, next the Crambidce and Scopariadce. TRANS. ENT. SOC. LOND. 1886. PART I. (MARCH). B