480 



NEW AUSTRALIAN SPECIES OF THE FAMILY 

 LIBELLULID^J. 



[Neuroptbra : Odonata.~\ 

 By R. J. Tillyard, B.A. 



(Plate xliv.) 



In this paper eleven new species are added to the list of 

 Australian Libellulidce, bringing the total up from 50 to 61. All 

 the new species were taken in the Cairns district of North 

 Queensland during the summer of 1904-5. Of these, three only 

 are new to science. The remainder are species already known in 

 other parts of the world, but so far unobserved in Australia. 

 Of the new species, one, represented by a single female, belongs 

 to the beautiful genus Rhyothemis. A second is a Synthemis, and 

 closely allied to several common southern Australian forms 

 already described. A third adds a new genus (Macromia) to the 

 Australian list. Of the eight remaining species, one is common 

 in South Europe, Africa and East Indies; four others occur in 

 the East Indies, India and Ceylon; two in New Guinea; and one, 

 hitherto known from the male only, in Borneo. Altogether six 

 new genera are added to the Australian list, viz., Zyxomma, 

 Erythemis, Macrodijjlax, Agrionoptera, Tetrathemis and Macromia. 

 In two of the new species the males are yet to be discovered. 



I am much indebted to M. Rene Martin of Le Blanc, France, 

 for his kindness in verifying the species sent him. 



i.— Subfamily LIBELLULIN.E. 



1. Zyxomma petiolatum Ramb. 



This insect belongs to a remarkable genus whose affinities have 

 been the subject of much speculation. Originally included 

 amongst the Libellulinae, it was later on separated out and 



