48 THE ENTOMOTjOGIST's RECORD. 



Claude Morley, F.Z.S., P. F. Tinne, M.A., M.B., Geo. Arnold, M.Sc. 

 Treasurer : Dr. J. Cotton. Secretaries : H. R. Sweeting, Wm. 

 Mansbridc;e. Librarian: F. N. Pierce. Council: E. J. B. Sopp, 

 F.R.Met.S., Wm. Webster, M.R.S.A.I., Win Mallinson, W. T. Mellows, 

 L. H. Lister, G. M. Taylor, M.A., C B. Williams, R. T. Cassal, 

 M.R.C.S., L.S.A., 0. Whittaker, R. Wilding, L. West, M.I.M.E. 

 Mr. Robert Newstead, the retiring Vice-President, delivered the 

 address, which was entitled " The Taxonomic value of the Genital 

 Armature in the Tsetse Flies {Genns (t loss in a)." Restated that he 

 had made a careful examination of all the hitherto described species of 

 the genus Glossina, which had not only revealed some very striking 

 morphological characters, but had led to the discovery of three hitherto 

 undescribed species: — Glossina submorsitans, Newst., G. bretripalpis, 

 Newst., and G. fiiscipes, Newst,, and also to the re-establishnient of 

 Bigot's G. (jrossa. The scheme of classification adopted was based 

 entirely upon the taxonomic characters of the male armature, which 

 are the true and almost only natural anatomical elements, that can at 

 present be found in these insects. He had found that the species fall 

 into three very striking and distinct groups each being separated by 

 very trenchant characters. These are: — Group I. (The Fiisca Group) : 

 This division includes the four largest species of the genus : — G. fusca, 

 Walker, and G. (jrossa, Bigot, which have a Western distribution ; G. 

 loyvjipennis, Corti., and G. brevipalpis, Newst., occurring chiefly on 

 the Eastern side of the continent (Africa). In all of these species 

 the claspers are quite free, there being no membrane stretching 

 between them ; the distal extremities of these appendages have either 

 a single large and bluntly pointed tooth-like extension or they are 

 bluntly bidentate ; the harpes in all cases being markedly different 

 in their morphological characters. Group II. (The Pnlpalis Group) : 

 To this division belongs the following species : — G. palpalis, 

 Rob. Desv., G. tac/iinoides, Westwood, G. fitscipes, Newst., 

 and G. palliccra. Bigot. In all of these species the claspers of the 

 males are connected by a thin and finely spinose membrane, which is 

 deeply divided medially, but in all cases the distal extremities of the 

 claspers are quite free and widely separated. Group III. (the Morsitans 

 group): — This group comprises G. morsitans, Westwood, G. snhmorsitans, 

 Newst., and G. lon/iipalpis, Wiedemann. In these the claspers are 

 completely united by a spinose membrane, and they are also fused 

 medially. They are of a very remarkable form, their shape somewhat 

 resembling the scapula of a mammal in miniature, and are altogether 

 much more highly complicated structures than those in either of the 

 preceding groups. Thus we see in these, three group forms, which are 

 so widely different as to lead one to assume, without taking other 

 external features into consideration, that they represent three distinct 

 genera. Certain it is that these insects illustrate one fundamental 

 principle of evolution, namely, that they have attaimed great develop- 

 ment of one set of morphological characters, and have retained others 

 apparently of an ancestral type. 



It will be noticed that there is no obituary notice of our late Editor 

 this month, as was promised in the last number. It has been thought 

 by some that one whole number might well be devoted to notices by 

 several contributors, giving an account of him as they individually 

 knew him, an account and criticism of his work, with a complete list 



