414 NEW AND RARE AUSTRALIAN AGRIONID^, 



the coast than any of the preceding forms, is of the very slender 

 build found in A. fontanels, n.sp. Iji markings, it is similar to 

 the immature males of type-form A. Wiw/s hyaline, narrow; 

 pterostigma 1 mm., narrow, black. Thorax and abdomen very 

 slender. Ahdomenh\-owzQ, marked as in A Appendages: superior 

 as in A; inferior very much bent, practically forcipate. 



Total length 34; abdomen, 27; hindiving, 21 mm. 



Type: S,Co\\. Tillyard. 



E. Race albescens. —^.Total length, 34-.38; abdomen, '11 -^^-^Q; fore 

 and hindtving, '20-'2\-n \x\n\., oi equal length. 9. 3o, 27, 22 mm. 

 for corresponding measurements. 



A very distinct race discovered by Mr. H. Hacker, of the 

 Queensland Museum, on Htradbroke Island, S. Queensland. This 

 is by far the most northerly record for tliis variable species. 

 I have examined a fine series of thirteen males and six females, 

 taken from begiiming of October, 1911, right up to the middle of 

 May, 1912. A striking peculiarity is the extreme shortness and 

 rotundity of the forewing in nearly all the males; the actual 

 length being only just equal to that of the hindwing, makes the 

 in.sect appear as if the forewing were stunted, and the bhintness 

 of the tip increases this effect. A similar but not so .striking 

 effect is seen in Argiolestes alpinns Tillyard. The formation of 

 pi iiinescence in the males is very remarkable. Specimens taken 

 in October have no pruinescen-?, and resemble the type-form in 

 colouration. Specimens taken from February to May show a 

 growth of very white pruinescence as follows : on the thorax, it 

 b('i;ins as a pair of slanting bands starting dorsally from close up 

 to prothorax and diverging laterally towards the wing-bases; 

 when mature, it appears almost like a thick fungus-growth, pure 

 whit(>, and covering the dorsal part of the prothorax, and all the 

 thorax, except a small lateral area above mesocoxa and a large 

 subtriangular dor.sal ai-ea with a spur running up to prothorax. 

 On tlu! abdomen, it foi-ms a pattern on 1-2, having an apical 

 black band and two black sjiots; 3-7 are untouched by it, 8-10 

 completely covered dorsally; appendages untouched. [In the 



