416 NEW AND RARE AUSTRALIAN AGRIONID.E, 



all bright orange-red, a fine black line at base of front, in suture; 

 labium black. Thorax: prothorax black, an orange collar in 

 front, two large central orange spots, and two small orange spots 

 behind. Meso- and vietatJwrax marked with bright orange (or 

 orange-red) and black, as follows :— a broad dorsal black band 

 widening slightly towards interalar ridge, where it spreads out 

 into two small projections, one on each side; on each side of this 

 band is a broad, rather irregular orange band, covering rest of 

 dorsal and upper part of lateral surface; below this, an irregular 

 black area cutting into the orange area above it, about midway-, 

 by a right-angled pi-ojection; rest of sides and underside dull 

 orange (See Plate xliv., figs. 5-6). Legs black; measurements of 

 foreleg: — femur 3, tibia 4, tarsus l-nnim. Abdomen slender, 

 1-2 very slightly enlarged, 3-7 cylindrical, 8-10 widening con- 

 siderably, 10 being widest. Colour : 1, black, an irregular traiis- 

 verse apical orange band; 2, dorsum orange, sides black, the latter 

 encroaching on the orange apically; 3-6 black, a small basal 

 oi'ange mark on each side; 7-10 jet black. A p p e n d a g e s : 

 superior l"4mm., black, thick, forcipate; basal half swollen, 

 apical half with an internal narrow shelf curving round near 

 middle of appendage so as to leave a small hole nearly enclosed 

 between it and the enlarged basal part; towards the tips, a large 

 inferior projecting spine; tips rough and blunt. Inferior minute, 

 truncated, black(Plate xliv., figs. 5, 6). 



9. Total length 40, abdomen .'U, hindwing '29-5 mm. It differs 

 from the male in possessing a steely metallic labruni, a broader 

 spread of wing, a shorter, thicker and more cylindrical abdomen. 

 Dasal orange spots of segment 3 meeting dorsally to form a 

 band, those of 4-6 larger than in male. Appendages 05 mm. 

 black, pointed; ovipositor large, upcurved, black, projecting 

 beyond end of appendages. 



//a6.— Dorrigo, N.8.W., 2,500 feet; November-December, 1911. 



It occurs only on the small running creeks in the densest scrub, 

 where very little sunlight penetrates. Two things struck me as 

 remarkable about this species. Firstly, the females were more 

 than twice as numerous as the males. I took nineteen females, 

 but only nine males, though the latter were especially searched 



