BY R. J. TILLYARD. 4^)9 



over by the time this species comes out. It is the latest dragon- 

 fly to emerge in the season, as far as I know; and, to this fact, 

 may be attributed its non-discovery before last year, since it is 

 seldom that one goes looking for Odonata so late in the year. 



This species, like the others of the genus, is very fond of 

 settling on tree-trunks in the sunshine. Unlike C. j>yiinirfxi, it 

 does not quite close its wings over its back, but usually holds 

 them apart at an angle of 10° or so. Owing to its slender body, 

 it looks exactly like a Zygopterid Dragonfly. This led to its 

 discovery; for I netted it because I thought it was a new Zj^gop- 

 terid, whereas if I had thought it was C. pyijmcva^ I should pro- 

 bably have left it alone. 



Three species of the interesting genus Cnrdnlephya are now 

 known and may be separated as follows : — 



j'Brioht yellow and black colouration; superior appendai,'es 



I of o not diveigent . 1. 



I Duller ochreous and black colouration; supeiior appendages 



[ of (J distinctly divergent T'. r^/z-f/v/f//.*. n.sp. 



I Small species; superior appendages of $ straiglit ('. pi/niiKi-n Selys. 

 1- -| Larger species; superior appendages of 5 convergent 



I .. C. iiiontana Tillyard. 



Suborder ZYGOPTERA. 



Family LE.STID.-E. 



Subfamily SYNLKSTIX.I^. 



Genus 8 y x l e s t e s Selys. 



Amongst the numerous specimens in my collection, from many 



localities, which belong to the genus Synleste.% I find a very great 



diversity in size, structure, and colouration. Only two species 



have so far been described, viz., >S'. iveyerd Helys, and .S'. aWicanda 



Tillyard. The latter is a very distinct species, which can be 



recognised at once, without the slightest difficulty. The former 



is, however, somewhat of a puzzle, so that it would be advisable, 



at the very start, to state the difficulties surrounding it, and to 



attempt a solution of them. 



Unfortiniately, de Selys originally described S. tcpi/^rsi from a 

 broken female only. This specimen was labelled "Poit Denison, 

 34 



