BY A. M. LEA. 567 



is almost entirely of a (Uiigy fiavo-testaceous, the ninth and tenth 

 j)artly so, the eleventh is distinctly semi-double, the apical portion 

 being conspicuously shorter and narrower than the basal portion. 

 The prothoracic vittte are almost parallel-sided, and parallel to 

 each other, in which they differ from the form of F. hcpvurptenis 

 haN ing the pronotum bivittate; but the females of both species 

 may be distinguished by the seventh and eighth joints of antenna?; 

 in the present species, their proportions being as in F. hamio- 

 rrhoidalLs, although, in colour, the apical joints approach those of 

 F. hcemojjferus. A specimen from Beech worth (Victoria; in 

 Coll. Carter), has the prothoracic ^itt{e considerably reduced in 

 size, so that they do not quite touch the base, and terminate 

 about the middle. 



Table of the Species of Fseudidyctis. 

 A. Antenna! conspicuously eleven- jointed. 



a. 8utural costa near base curving round to join tirst 



discal costa . . ira/lacei. 



art. 8utural costa not joined to first discal costa. 



/'. Median vitta of prothorax continuous throughout carteri. 



hh. Median vitta terminated l)ef ore apex vitticolUs. 



XX. Antennai with apical joint semidouble, causing them 

 to appear almost or quite twelve-jointed. 



B. Pronotum polished and glabrous hilaris. 



BB. Pronotum densely clothed (at any rate in parts). 



C. Basal joint of hind-tarsi not simple (arsalis. 



CC. Basal joint simple. 



D. Prothorax having two ridges, which diverge 



obliquelj^ hindward from the middle of the 



median line, enclosing a triangular depression. 



c. Eighth joint of antenn* quite as flat as, and 



more than half the width of seventh niger. 



CC. Eightli joint subcylindrical, and less than half 



the width of seventh hceniorrhoidalis. 



Di). Prothorax not as in D. 



E. Pronotum red along middle forridus. 



EE. Pronotimi black (or, if partly red, then black 

 along middle). 

 F. Eightli joint of aiitennivof female much less 



than half the width of seventh hiritticoHls. 



FF. Eighth joint of female more than half the 



width of seventh hcemopterui<. 



