legs would be useless to them, as on attaiuiug the complete winged stage of 

 development they retain the subimaginal pellicle, and live but few hours in 

 the air. From Lahat there were subimagines of a Cronicus, a genus known 

 previously only from a fossil in amber from Prussia. . Several new forms, 

 whose existence was expected from analogy, were in tliese collections. The 

 whole family seems to consist of associated series of genera. In every series 

 the forms differ from one another in the number of set® or wings ; while in 

 tarsi and ncuration and eyes they are very much alike. Such are a form 

 distinguishable from Lachlania by the female possessing three long seta) 

 instead of two only ; another differing from Potamanthus (restricted) in 

 the middle seta being extremely short and minute ; and another which 

 resembled Siphlurus, excepting in the possession of a long intermediate seta 

 instead of a minute rudiment of one. There were many new genera alHed 

 to the typical Leptophlebia, in addition to the series of species associated 

 with it in the Monograph as sections, which will now be separated as genera 

 from it. 



The President exhibited some drawings which he had prepared of insects 

 belonging to the Dipterous genus Systropus, of which he intended shortly 

 to publish remarks on their transformations. 



The Piev. R. P. Murray stated that he was preparing a resume of all the 

 species of Japanese butterflies hitherto noticed, and that he would be grateful 

 to any entomologist who could assist him with the loan of specimens. 



Mr. Smith made some remarks on the distribution of some genera of 

 Hymenopterous insects from New Zealand, a collection of which had 

 been placed in his hands by Mr. C. M. Wakefield. He was followed by 

 Mr. IM'Lachlau, who remarked on the gradual extinction of the endemic 

 Fauna of New Zealand, although introduced forms throve there in a 

 remarkable manner. 



Mr. M'Lachlan exhibited a series of a remarkable Trichopterous insect 

 received from its discoverer, Fraulein Marie vgn Chauvin, of Freiburg, in 

 Breisgau, described by Stein as Anomalopteryx Chauviniana. In the male 

 the anterior wings were lanceolate and the posterior much abbreviated, 

 whereas those of the female were normal, excepting that tlie posterior wings 

 ^Yere smaller than usual. He also exhibited apterous females of Acentropus 

 niveus received from I\Ir. Ritsema, of Leyden ; and a slide with a full-grown 

 female of the root-form of Phylloxera vastatrix, recently obtained by him 

 (with many others) from a vinery near London that was greatly infested 

 with the insect. 



Kew Part of ' Transactions.' 

 The fifth Part of the 'Transactions' for 1875 (containing the title-page, 

 index, &c.) was on the table. 



