BY F. W. CODING AND W. \V. FROGRATT. 585 



with six apical areas. Sides of abdomen parallel beyond middle; 

 tympanum wholly covered by the anterior leaf-like expansion of 

 basal segment; opercula large, widened from base to apex, which 

 is truncated. Front femora with three spines below, subapical 

 spine minute. 



Type, Cicada mcerens, Germ. 



Synopsis of Species. 



1(12). Tegmina with 1st and 2nd anastomoses spotted with 

 black. 



2 (9). Tips of longitudinal veins of tegmina and of apical areas 



of wings infuse ated. 



3 (4). Sides of abdomen with two yellow spots pictibasis. 



4 (3). Sides of abdomen without spots. 



5 (6). Abdomen orange-yellow aurora, 



6 (5). Abdomen not yellow. 



7 (8). Abdomen castaneous flavescens. 



8 (7). Abdomen black moerens. 



9 (2). Tips of longitudinal veins of tegmina and apical areas 



of wings not spotted. 



10(11). Sides of abdomen with a large silver spot harrisii. 



11(10). Sides of abdomen without spots plebeia. 



12 (1). Tegmina immaculate. 



13(14). Abdominal segments broadly pale ferruginous argentata. 



14(13). Abdomen mostly black {dichroa) harrisii. 



*PsALT0DA MCERENS, Germ. 



1834. Cicada id., Silb. Rev. Ent. ii. p. 67. 



1860. Cicada id., Bennett, Wand. Nat, Aust. p. 18. 



1885. Cicada id., McCoy, Prod. Zool. Vic. Dec. v., p. 53, pi. 50, 



figs. 1-2. 

 1895. Frogg., Proc. Linn. Soc. N.S.W. p. 529. 

 1897. Black Cicada, Kershaw, Yic. Nat. p. 119. 

 1903. Frogg., Agr. Gaz. N.S.W. p. 340; and Misc. Pub. No. 643, 

 p. 7, pi. 3, fig. 2. 

 Black. Head triangular, black. Pronotum black, width of 

 head, posterior margin broad, sordid ferruginous. Mesonotum 

 black, a spot on each anterior angle and a spot on each side of 

 38 



