BY R. J. TILLYARD. 425 



8. AUSTROLHISTES ALLKXI, 11. Sp. 



^. Total length, 37: abdomen, 30; hindiviny, 18 mm. 



Wings: neuration dark brownish, pferostii/ma 1 mm., brown- 

 ish; postnodals 10-12. Head: ei/ef< bi-owii, paler beneath; epi- 

 craiimm, clypeus, and labrum brown, mottled with darker bi-own 

 in places; labium pale brownish. Thorax: profho7-a,r pale 

 brown. Jfeso- and metathorax olive-brown shading to glaucous- 

 grey on sides; on each side of dorsal ridge a narrow stripe of 

 metallic olive-green, to which is attached, at the middle point of 

 the outer side, a small spot of the same colour. On each side, 

 two small dark brown spots. Underside dull whitish. Leys 

 brown: tibiae with long stiff hairs. Abdomen: 1 -2 thickened, 

 3-7 .slender, 8-10 slightly wider. Colour: l,pale brown; 2-9, 

 dark olive-brown, sides and underside paler except at sutures: on 

 each side of 2 a pale area; 10, pale In-ownisli. A ppe n d age s : 

 superior 1 mm., brownish, slender, forcipate, hairy: inner side 

 slightly swollen near base, and carrying a distinct spine low down 

 iust bev'oud half-way; outer surface furnished with several small 

 spines not arranged in a definite row; some long hairs towards 

 tips. Inferior very small, blunt, brownish. ( Plate xlv., tigs. 11 12). 



^.Unknown. 



Hab. Cairns, N.Q.; two males only, taken by Mr. E. Allen, 

 in August and September, 1905. V^ery rare. 



T y p e : $ in Coll. 'J^illyard. 



Allied to A. tenuissimns Tillyard, and ..4. pahtdostis Tillyard, 

 Ijy the colour-scheme, the three species forming a well-marked 

 " tropical gi'oup " within the genus for this reason. In size and 

 shape, however, it seems closest to A. psyclLe Selys, which it also 

 resembles most closely in the form of its appendages. 



T have dedicated this species to its discoverei', Mr. E. Alien, 

 to whom 1 am indebted for much valuable help in the forui of 

 careful collecting of Odonata in the Cairns tlistrict. 



9. AUSTROLKSTES INSULARIS, 11. Sp. 



(J. Unique. Tot<d length, 37: abdomen, 29-7; hindu-ing, 17mm. 



Wings: neuration very dark brown; j->ferostig)nn 1 nnn., 



dark brown, covering exactly one cellule; jtostuDda/s 9(11 in one 



