neiv Cicadidce from Madagascar. 337 



strongly convex above and somewhat flattened beneath ; 

 apical segment attenuated ; tympana totally detached 

 from first abdominal segment ; opercula small, not 

 covering the tympanal orifices. Anterior femora armed 

 with strong spines beneath. 



This genus I have placed next to Prasia, Stal, to which 

 it has many affinities, but from which the amplified 

 apical space between the post-costal vein and the post- 

 costal ulnar ramus will alone distinguish it. 



Malagasia inflata, n. s. (PI. XV., figs. 2, 2a — d). 



? . Head and pronotum ochraceous or greenish. 

 Head with a black submarginal border to front and with 

 two transverse black fasciae on vertex, the first at anterior 

 margin of eyes, the second at base and extending along 

 posterior margins of eyes. Pronotum with a waved, 

 denticulated and rounded, black fascia on each side of 

 disk, and with a broad submarginal black streak. 

 Mesonotum with the following black markings : — two 

 large obconical spots commencing at anterior margin, 

 with their apices continued in a curved line and termi- 

 nating in a rounded spot in front of each anterior branch 

 of the basal cruciform elevation ; on each side of these 

 markings is a long irregular fascia, commencing at base 

 and terminating in a somewhat rounded angulation near 

 the anterior angles of basal elevation, and a somewhat 

 rounded spot on each lateral margin. Abdomen dark 

 ochraceous, with a faint black longitudinal central line. 

 Head beneath, legs, sternum, and opercula, ochraceous or 

 greenish ; anterior femora black beneath ; abdomen 

 beneath ochraceous. Tegmina and wings pale hyaline, 

 with the venation ochraceous ; transverse vein at apex 

 of lower ulnar area of tegmina fuscous. 



The face is broad, but moderately convex, with a 

 narrow but deep central and longitudinal sulcation, and 

 with very strong transverse striations, the interstices of 

 which are very broad. The anterior femora are strongly 

 incrassated, and armed beneath with three black sj^ines 

 near apex, two of which are longest; all the tarsal 

 claws are fuscous. The opercula are small and sub- 

 triangular, the lateral margins straight and very oblique, 

 the ajjex obtusely rounded and about reaching base of 

 first abdominal segment. The posterior portion of the 

 mesonotum and the upper surface of the abdomen is 



TRANS. ENT. SOC. 1882.— PART II. (jULY.) 2 X 



