458 NEW AND RARE AUSTRALIAN AGRIONID^E, 



with a pair of pale yellow basal marks, very small ; 8, basal 

 two-thirds black, apical third and sides red ; 9-10 bright red. 

 Appendages: superior, 015 mm., reddish, wide apart, 

 appearing triangular from above ; in profile, bluntly truncate, 

 with a huge inferior lobe pointing downwards ; inferior very 

 minute, flattish, carying a small black upturned toothlet 

 above, and three similar, but slightly smaller ones, below 

 (Plate xlviii., figs. 15-1 6). 



9 . Form A. — This differs from the male as follows: — Post- 

 nodah 7-8 in fore, 6-7 in hindwing ; pterostigma pale greyish- 

 brown in all four wings. Head : vertex blackish, with post- 

 ocular spots irregular, brownish ; an irregular brownish band 

 along front, clypeus reddish, labrum brown, labium pale yel- 

 low. Profhorax brown, somewhat swollen or tubercled above 

 on each side of dorsal line ; posterior lobe very narrow, not 

 projecting as in male. Meso- and niefathoraac dull glaucous- 

 brownish, with a dark olive-green dorsal band. Abdomen 

 slightly thicker than in male, 3 somewhat narrowed ; colour 

 dark olive-green inclining to bronze, sides pale yellowish- 

 brown, sutures of 1-7 with black transverse lines; 8-10 downy 

 with reddish-brown sutures. Appendages very short, downy, 

 blunt, reddish-brown. 



9 . Form B. — Differs from Form A as follows: — All brown 

 or reddish parts of the head in A, are brick-red in B ; thorax 

 brick-red, with a very broad black dorsal band ; abdomen, 1-3 

 red, with narrow transverse apical black bands right up to 

 sutures ; 4 similar, clouded slightly with brown towards apex ; 

 5 similar, but with the whole of dox'sum clouded ; 6-8, black- 

 ish above, red on sides; 8-10 with red sutures; 9, red with a 

 large black dorsal area narrowing apically ; 10, red, with a 

 basal black blotch ; appendages as in A. 



Hab. — Sydney to Cape York; not uncommon, but very 

 local ; November to March. 



This insect flies but little, and, on account of its diminutive 

 size and retiring habits, is very easily ovei-looked. It forms 

 small colonies along the shallow reedy edges of slow-running 



