3fi8 AUSTRALIAN CORDULIIN^, 



//„6.— Fallal, N.S.W.; in December, 1910. It is confined to 

 the main Hoiton River, and only occasionally appears on the 

 smaller creeks. 



Types: J", in Coll. Hagen (Queensland); <^, in my collection. 



2. Hemicordulia continentalis Martin. 



Four males and three females of this rare species were taken 

 by Mr. II. Elgner at Darnley Island, Torres Strait, in December, 

 1909. Mr. F. P. Dodd has also taken a single male, immature, 

 at Port Darwin (undated). These are now in my collection. 

 They all resemble very closely tlie small-sized male taken by 

 myself at Kuranda, N. Queensland, in January, 1905.t M. Rene 

 Martin's types, taken in New South AN'ales and Queensland, are 

 lai-ger. This species, like the preceding, clearly attains its 

 greatest development in Central-East Australia, the tropical 

 representatives being somewhat dwarfed. 



3. Hemicordulia supurba, n.sp. (Plate x., figs. 5-8). 



(J. Total length, 54; abdomen, 40-5; hindwing, 33 mm. 



Wings: costn pale yellowish outwards to nodus, rest of 

 neuration black; pterostigma IG mm., black; membranule narrow, 

 forewing 1-5, hindwing 2-3 mm., grey-brown touched with white 

 at bases; subtriangle of forewing generally 3-celled, but some- 

 times 2-celled on one or both sides. Nodal Indicator j7-8, 5 | 



Head : e^/^s dark greenish (brown in dead insect); j 5, 6-7 1 

 vertex tubercled, small, yellow above, dark steel-colour on sides; 

 antennce black, 2'b mm., front somewhat indented medially, black 

 with steely or greenish metallic reflections, two very conspicuous 

 round yellow spots above, wide apart; lower part oi front, clypens, 

 labrum and labium bright yellow, two small dull black dots in upper 

 labral suture, and a distinct bright black dot in middle of base of 

 labi'um. Thorax: prothorax small, metallic steely black, with 

 a dorsal yellow spot and broad yellow basal collar. Meso- and 

 metathorax black, with metallic steely or greenish reflections above, 

 a short yellow line on dorsal ridge, and two rather irregular 

 yellow antehumeral bands, pointed forwards and broadening 



tioc. cit. p. 742, 



