Hale — Aquatic Hemiptera 417 



$ Eyes not so prominent, and notocephalon wider than in male. Sjaith- 

 lipsis If) in vertex, 3 times in the width of an eye. Pronotum about twice as 

 wide as long, with a coarse, median carina; hinder margin convex. Scntellnm 

 pale yellow to orange; sometimes with a black spot on each side anteriorly; 1-5 

 times as long as the pronotum. Anterior femora not ridged on superior edge; 

 anterior tibia one-fourth longer than the tarsi, the first tarsal segment nearly 

 twice as long as the second, which is less than twice the length of the longest claw. 

 Length, 8 mm. to 9-5 mm. ; width, 2n mm. to 3 mm. 



Hal). South Australia: Bordertown (J. G. 0. Tepper, type locality); 

 Queensland: Cunnamulla (H. Hardcastle). 



The type, which is somewhat damaged, is the only male of this distinct species 

 as yet received. The convex posterior margin of the pronotum distinguishes it 

 from all other Australian forms, excepting possibly A. endymion Kirk. ; in the 

 description of the last-named species the character of the hinder edge of the 

 pronotum is not stated, but the synthlipsis is described as about half the width of 

 an eye and but slightly narrower than the vertex, while the pronotum is rela- 

 tively longer and the scutellum shorter than in the female of A. calcaratus. 



ANISOPS ENDYMION Kirkaldy. 



Anisops endymion Kirk., Wien. ent. Zeit., xxiii, 1904, p. 114. 



"Elytra ash-coloured, transparent. Posterior half of exocorium and the 

 clavus smoke-coloured, anterior half of clavus, basal margin of corium and the 

 basal half of exocorium, black. Veins of wings pale. Metanotum brownish-black, 

 lateral margins pale. Legs pale. Abdomen above dull, pale, in the centre black. 

 Below black. Crown longitudinally grooved, hardly broader on the anterior 

 margin than on the synthlipsis, the breadth of the latter barely half the width of 

 an eye. 



Anterior margin of the pronotum between the eyes much more distorted 

 than in other species (the distorted portion rounded anteriorly) ; pronotum three- 

 fourths broader than its length, longer than. the scutellum. Anterior and middle 

 tibiae flat and laterally expanded, broader at end than at base ; one-fifth times 

 longer than tarsi, first tarsal segment two-fifths longer than the other, Avhich is 

 two and a half times as long as the claw. Length, 9 mm. ; breadth, 3 mm. 



Hal). Australia: Swan River (Perth Museum, Scotland). 



Only a single female of this distinct species is before me." 



I have not seen this species, and as the publication in which it is described 

 is not included in our libraries a translation from the German of the original 

 description is given above. A. endymion differs from the other species herein 

 described in the wider notocephalon. 



