740 ON SOME REMARKABLE AUSTRALIAN CORDULIIN.E, 



Nodal Indicator 8-9 5-6 Head: eyes dark brown; vertex 

 small, tubercled, 6 7 shiny black ; front deeply cleft 

 medially, hairy, dark metallic greenish-black; clypeus, labrum 

 and labium dark shiny brown. Thorax very short and stumpy 

 (prothorax not visible), glaucous brown with metallic greenish 

 reflections, dorsum darker than sides. Legs brown, tibiae with 

 very long slender bristles. Abdomen narrow, practically 

 cylindrical, base of abdomen not swollen. Colour: 1, brownish 

 or yellowish; rest black, rather shiny, a large brownish patch on 

 each side of 2. [The specimen is an aged one, somewhat damaged, 

 and if there are other markings they have been obliterated.] A 

 brown line along ventral carina from base to 6. Appendages 

 wide apart, almost straight, 1 mm., tips very slightly curved, 

 pointed; black, with brownish hairs; between them there is a 

 distinct black projection or tubercle on seg. 10, also somewhat 

 hairy. 



Hob.— Kuranda, N.Q. (F. P. Dodd; January, 1908). 



2. Hemicordulia intermedia Selys. (Plate xxi., fig.2). 



Two males, one in very bad condition, bub the other perfect, 

 were taken by me at Cooktown, January, 1908. I have not seen 

 the unique type-male in Hagen's collection, nor have I seen his 

 description of it. In M. Rene Martin's work, cited above, he 

 says of it — " Comme celui de H. australice, le male porte une 

 dent infeYieure aux appendices superieurs; comme H. tau, il porte 

 sur le front un T enfonce et bien net, ce qui le distingue de toutes 

 les autres especes. II differe par la bande mediane brune du 

 devaut du thorax, et par une bande jaune en demi-anneau au 2 e 

 segment de I'abdomen. Si les accouplements utiles entre especes 

 differentes d'Odonates etaient prouves, on pourrait dire que le 

 type en question est le produit de l'accouplement des H. tau et 

 australice." 



With these words before me, I hesitate to describe my speci- 

 mens as new, for they agree with M. Martin's remarks on the 

 type H. intermedia in the following points : — a distinct tooth or 

 spine on the underside of the superior appendages, a very clear 



