THE ZooLoGist—JuNE, 1876. 4967 
with Euthyplocia also); in others the anterior pair of legs was retained by 
the female, as it was seemingly by all males. The separation of the legs 
cast off takes place between the femur and the trochanter. The posterior 
legs would be useless to them, as on attaining 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 these 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 sete or wings; while in 
tarsi and neuration and eyes they are very much alike. Such are a form 
distinguishable from Lachlania by the female possessing three long sete 
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 allied 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 Rev. R. P. Murray stated that he was preparing a resumé 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. M‘Lachlan, 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 von 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 the posterior wings 
were smaller than usual. He also exhibited apterous females of Acentropus 
niveus received from Mr. 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. 
New Part of ‘ Transactions.’ 
The fifth Part of the ‘ Transactions’ for 1875 (containing the title-page, 
index, &c.) was on the table. 
