592 
Diphlebia from Australia, represented, hitherto, by two species. Two additional 
species of the last of these are described as new, one from Kuranda, N.Q. 
(Dodd); and the other from rocky creeks in the Nandewar Ranges, N.S.W. 
The life-history of the latter has been fully worked out, and the account al- 
ready given of that of L. lestoides, is supplemented in important details. In 
the Ansoptera, the characters of the larval gizzard determine the separation 
of the main groups. The same test should be applied to the admittedly un- 
satisfactory classification of the Zygoptera. The Diphlebia-form of gizzard is 
found to occur also in Argiolestes and Isosticta amongst the Agrionidae, though 
the gizzards of the legions Agrion and Lestes of de Selys are very different. 
Hence the conclusion, that these facts suggest that the present-day Agrio- 
nidae are a collection of strongly asthenogenetic or reduction forms descended, 
along several main lines, from more abundantly nervured insects, of which 
the existing Calopterygidae may represent, fairly closely, various stages of 
descent. 
III. Personal-Notizen. 
An der Universität Göttingen habilitierte sich Dr. Bernhard Dürken 
fiir Zoologie. 
— TZ — — 
Druck von Breitkopf & Hartel in Leipzig. 
