572 



ON SOME AUSTRALIAN AXISOPTERA, WITH 

 DESCRIPTIONS OF NEW SPECIES. 



By R. J. TiLLVARD, M.A., F.E.S. 



(Plate Ixii.) 



The following species are dealt with in this paper : — 

 Syidhemis spiniger, n.sp. 

 Metathemis hrevistyla suhjuncta, n.subsp. 

 Jletathemis yiUtata aurolineata, n.subsp. 

 , Aiistrogomphus doddi Tillyard. 



Aitstroyomphus manifestus Tillyard. 

 Austrogomphiis armiger, n.sp. 

 Austroceschna parvisfigma Selys. 

 Austrofcschoia midtipunctata Martin. 

 AusLrocEschna forcipata Tillyard. 

 Petalura pulcherrima, n.sp. 



Subfamily C o R D u L i i N .E. 



I.Synthemis spiniger, n.sp. 



(J(unique). I'otal length 53, abdomen 40, forewing 32"5, hiud- 

 wing 31*5 mm. 



Wings: neuration black, bases of wings touched with deep 

 black bordered by saffron ; a distinct round creamy spot at 

 extreme base of costa on all four wings. Pterostiyma 2-7 mm.; 

 black. One basilar, four submedian, and one hypertrigonal cross- 

 veins; triangles free normally (right hiiidwing triangle once 

 crossed); post-trig onals of forewing, one double followed by 6-7 



single rows. Nodal Indicator 



^o 



hairy; front hairy, deeply and 



Head: vertex black, 

 widely cleft in middle, 



13, 7-8 



9-11, 9-11 



black at base and in cleft, with sides and lower parts glaucous 

 dirty yellowish-grey; clypeus and upper part of labrum dirty 

 greyish-brown; rest of labrum dull ochreous; labium ochreous. 

 T borax: prothorax black. Meso-a,nd metathorax black above, 

 shading to dark brown on shoulders; a fine yellow line along 

 dorsal ridge, and a pair of round yellow humeral spots close up 



