BY R. J. TILLYARD. 367 



dark brown. Head and thorax, as iu male. Abdomen shorter 

 and stouter, more cylindrical; markings similar to male, but all 

 spots larger except those of 8, which are slightly smaller; 9, 

 black; 10, very short, black, ending in a large rounded hairy pro- 

 tuberance below appendages. No ovipositor, underside of 8-10 

 similar to M. virc/ula (PlAte vii., fig.23). Appendages 1mm., 

 straight, black, pointed, very slender. 



Types : Coll. Selys,^$(immature)(Port Denison, Queensland). 



Hab. — Queensland, New South Wales, Victoria; November to 

 March. 



It occurs along the larger rivers, often in company with M. 

 virgula, but very seldom in the same localities as 31. guttata. It 

 is especially abundant in Victoria and Southern New South 

 Wales, where the specimens are larger than the Queensland types. 

 The series described above by me, and of which the male is 

 figured in the plate, were taken at Alexandra, Victoria. 



4. Metathemis virgula Selys. (Plate v., fig.ll). 



Synthemis virgida Selys, loc. cit. 1874. 



$. Total length 49; abdomen 37; hindwing 29 mm. 



Wings : costa bright yellow outwards, neuration more open 

 than in J/, brevistyla; pterostigma 2-6 mm., black; memhranide 3 

 mm., pale greyish. Head: eyes dark green in living insect; 

 vertex black; front yellow, a narrow black band in the median 

 cleft, face yellow above and on sides, a large brown rectangular 

 patch in middle; clypeus and labrum yellow edged with brown; 

 labium pale yellow, mouth touched with brown. Thorax 

 dark brown, with indistinct steely reflections above; dorsal ridge 

 yellow; a pair of bright yellow antehumeral bands, pointed 

 sharply towards interalar ridge; sides brown with steely re- 

 flections, a bright yellow lateral band, irregidar bid continuous; 

 a large yellow patch low down. Notum brown, scutella yellow; 

 a distinct yellow spot at each wing-base; legs black, underside of 

 profemora pale brown. Abdomen, 1-2 and 7-10 somewhat 

 swollen, 3 rather narrow. Colour deep brown shading to black, 

 marked with bright yellow as follows : — 1, an indistinct dorsal 



