BY R. J. TILLYARD. 245 



'of E; the part of C and D close under the wing-join is irregularly 

 marked with black, especially along the sutures, and the spiracle 

 carries a small black spot (see Plate xxii., fig.2); notum black, 

 scuta and scutella yellow. Legs black, underside of profemora 

 3''ellow, coxae pale brownish. Abdomen: 1-2 enlarged, 3-7 

 very slender, 8-10 enlarged. Colour jet black; 1-2, a large yellow 

 dorsal mark, also yellow on sides and auricles; 3-6, on each side 

 a basal subtriangular yellow spot; 7, a pair of larger spots, close 

 together, about 1 mm. from base; 8-10, without spot. A p- 

 pendages : superior very remarkable; 1 -6 mm., bases separated, 

 straight, cylindrical, jet black, hairy, strongly bifurcated; the 

 outer fork being the longer, fairly pointed, the inner somewhat 

 shorter, very pointed. Inferior bifurcated, the two parts widely 

 separated, 0-5 mm., very thin, hooked or curved upwards, black 

 (see Plate xxiii., figs.7 and 8). 



9. Unknown. 



Ilab. — Atherton, N.Q. Very rare; April. 



Two males of this remarkable insect were taken by my friend, 

 Mr. E. Allen, of Cairns, in April, 1907. It probably only 

 emerges after the heavy monsoonal rains of February and March. 

 It was certainly absent during my visit to Atherton in January, 

 1905. 



This species cannot possibly be confounded with any other 

 known species, its remarkable appendages being totally unlike 

 anything hitherto found in the subfamily Gomphince. Probably 

 its nearest ally is A. prasinus Tillyard, in which the appendages 

 have a small bifurcation. 



3. AUSTROGOMPHUS COMITATUS, n.sp. 



^. Total length 42 mm.; abdomen 31 mm.; forewing 25 mm., 

 liindwing 24 mm. 



Wings: neuration black, costa slightly yellowish (uitwards; 

 base lightly suffused with pale yellow for 4-6 mm. Fl^rostigma 

 thick, 2-5 mm., dark brown between black nervures. Anal angle 

 '3-celled. Nodal Indicator |13 9-10 



9 8-9 



