BY R. J. TILLYARD. 



385 



Form A. 

 A b d o m e n cylindrical, 

 stouter than in male. Colour: 

 1-7 metallic black above (some- 

 times dull black or greenish- 

 black), a pale transverse line in 

 each suture; 8-10 dull black. 

 Sides of all segments greenish. 



Form B. 

 Abdomen shaped as in A . 

 Colour: 1 black above; sutures 

 between 1 and 2 red; 2 with an 

 irregular black basal patch; 3-5 

 bright red, a fine black trans- 

 verse band along all the sutures; 

 6, four-fifths bright red, anal 

 one-fifth black; 7 deep metallic 

 black, basal and anal sutures 

 touched with red; 8, basal two- 

 thirds black, anal third pale 

 blue; 9 blue, touched with black 

 at base; 10 short, black. Sides 

 of all segments pale orange. 

 Appendages seipa,vsiie,0'l 5mm., Appendages shaped as in A, 



subconical, rather blunt, black, brownish. 



In a variety of Form B, taken at Wilgarrup, segment 2 of 

 abdomen has basal half red with a large cup-shaped black mark, 

 anal half black; 3-4 have a transverse anal black band, and 3 a 

 transverse central black line; also the black line along the 

 sutures of 3-5 is enlarged into a conspicuous narrow band, A 

 similar variety occurs in the male, also intermediate forms. 



Genus Agriocnemis. 



A. pruinescens Tillyard. — The male of this insect is a dull 

 blackish insect with the first two and last but one segments of 

 abdomen clouded with greyish bloom. While in North Queens- 

 land I failed to capture the female, but a few months later I 

 received from Mr. E. Allen, of Cairns, one male and three females 

 of this species. The females are most remarkable, bearing not 

 the slightest resemblance to the male; a first examination of 

 them made me think they were orange forms of some species of 

 Ischmcra, as they bear a remarkable resemblance to that genus. 

 However, the position of the first antenodal arising before the 



