DESCRIPTIONS OF AUSTRALIAN ^SCHNIN^. 13 



0. Gynacantlia Series, in which the anal triangle of the male is usually- 

 wide and the membranule correspondingly small, the anal appen- 

 dages of both sexes very long, and the females with a remarkable 

 projecting fork under segment 9 ; the full-fed larvse, so far as 

 known, have lateral setse on the labium. 



Genera : Helicesclina, Platacantha, Cornacantlia, Triacanthagyna, 

 Tetracanthagi/na, Gynacantlia, and Austrogynacantlia. 



To this tribe nlso belong the genera Sidxesclma, Neurcesclina, and Stauro- 

 pldehia, but tlieir correct position within it seems to me too problematical for 

 definite decision until more is known about them. 



List of the Knoion Species of Australian iEschninae. 



I. Pal^ogenic Group. Tribe Pf.taliini. 



Genus 1. AusTROPETALiA, n. g. (Tj^q PhyUopetalia patricia,T\\\j2ivdi.) 

 1. Austropetalia patricia, Tillyard. 



II. Entogenic Group. Tribe Beachytbini. 



A. ApaANTOCHMOME Series. 



Genus 1. AusTROPHLEBiA, n. g. (Type Plamesclina costalis, Tillyard.) 



2. AustropJilebia costalis, Tillyard ((^hitherto unknown, 



y-i c^ m G^ 1 [described herein). 



Genus 2. Telephlebia, Selys. ^ ^ 



3 a. Telephlebia godeffroyi godeffroyi, Selys. 



3 h. Telephlebia godejfroyi Irevicauda, n. subsp. 



3 c. Telephlebia godejfroyi cy clops, n. subsp. 



Zd. Telephlebia g ode froyi tillyardi, n. subsp.. Campion. 



4. Telephlebia asthenes, n. sp. 



B. Htlocheomb Series. 



Genus 1. Dendro^schna, n.g. (^y^eCalicesc]inaconspersa,Tli\\y2ixd.) 



5. Dendro(eschna conspersa, Tillyard. 



Genus 2. Austro^schna, Selys. 



6. Austroceschna tripunctata, Martin. 



7. Austroceschna weiskei, Forster. 



8. Austroceschna forcipata, Tillyard (^ = severini, Forster). 



9. Austroceschna unicornis, Selys. 



10. Austroceschna inermis, Martin ( ? hitherto unknown, 



11. Austroceschna longissima, Martin, [described herein). 



