512 
a bright red and black colouration, unique amongst Corduliinae. Lastly, a 
female of a magnificent new Macromia, M. viridescens, taken at Cape York, 
completes the list of new species. — 3) On the Genus Cordulephya. By R. J. 
Tillyard, M.A., F.E.S. — This peculiar aberrant genus, originally mono- 
typic and far removed from all existing forms, is enlarged by the addition 
of a new species, C. montana, from the Blue Mountains. The two species, 
C. pygmaea Selys, and C. montana, are described and compared, and their 
full life-histories given. An interesting ‘theory of the two broods” is offered 
as a solution of the differentiation between the two, which occur at different 
seasons of the year. Much light is thrown on the phylogeny of the subfamily 
by the new species, which reveals a process termed ‘‘asthenogenesis” (Greek 
aodévi¢ = weak) as the factor bringing about the aberrancy of this genus 
(and similar genera in the subfamily Libellulinae). This is in direct opposition 
to the theory developed by Professor Needham, of Ithaca, New York, and 
generally accepted at present by students of Odonata. A further subdivision 
of the Corduliinae into four co-ordinate groups is proposed, and these are 
defined by both larval and imaginal characters, while the difficult question of 
placing Cordulephya in any scheme of classification is gone into, and a deci- 
sion arrived at. 
III. Personal-Notizen. 
Dr. Friedrich Voss habilitierte sich an der Universitit Gottingen 
fiir Zoologie. 
Die Adresse von Dr. P. Steinmann lautet von jetzt an: 
Prof. Dr. P. Steinmann, 
Kantonschule 
Aarau. 
Druck yon Breitkopf & Hartel in Leipzig. 
