knowledge of the Family G%cadidi&. 673 



Cicada vesta, sp. n. (PI. XXX, fig. 4, a, h.) 



Head black, a central line to face and anterior narrow margin to 

 vertex, ochraceous ; pronotum castaneous, its posterior margin and 

 a central longitudinal fascia margined with black, ocliraceoiis ; 

 mesonotum black, two central, discal angulated fascia3 with a spot 

 between them, and the basal cruciform elevation, ochraceous ; 

 abdomen above black ; body beneath and legs pale ochraceous, 

 greyishly pilose, opercula and anal segment bright ochraceous ; 

 apices of tibioe and tarsi piceous. 



Tegmina and wings pale hyaline, the venation ochraceous towards 

 base and fuscous towards apex ; tegmina with the costal membrane 

 ochraceous to apex of radial area aud thence piceous, the basal cell 

 and narrow bases of both tegmina and wings piceous. 



Opercula about half the length of abdomen, their lateral margins 

 somewhat strongly oblique, their apices truncately rounded, their 

 inner margins meeting for about third of length and thence oblique 

 to apices ; rostrum about reaching the posterior coxee. 



Long. excl. tegm. (^ . 28 ; ? . 22 millim. Exp. tegm. (^ . 80 ; ? , 

 70 millim. 



Hah. India ; Bombay {B. M. Dixoro). 



Cicada nigrans, sp. n. (PI. XXX, fig. 1, a, b.) 



Head black, eyes ochraceous ; pronotum dark testaceous, with a 

 central black fascia ; mesonotum black, with two central linear 

 obconical testaceous spots from which two slender rays emanate on 

 each side ; abdomen black, posterior segmental abdominal margins 

 testaceous ; body beneath piceous, ochraceously pilose, opercula 

 ochraceous ; legs pale castaneous, apices of femora pale luteous. 



Tegmina and wings pale hyaline, the venation fuscous or ochra- 

 ceous ; tegmina with the transverse veins at the apices of the three 

 upper ulnar areas infuscated, and a small fuscous spot near apices of 

 longitudinal veins to apical areas. 



Opercula overlapping each other internally, rounded posteriorly 

 but not extending beyond the apex of the basal abdominal segment ; 

 rostrum just reaching the posterior coxaj ; face somewhat strongly 

 transversely striate, and broadly centrally longitudinally impressed. 



Long. excl. tegm. ^ and 5 . 27 millim. Exp. tegm. 75 to 78 

 millim. 



Rab. Madagascar; Fort Dauphine. 



Macrotristria nigrosignata, sp. n. (PI. XXIX, fig. 7, a, b.) 

 9 . Body castaneous ; posterior margin of pronotum, cruciform 



