knowledge of the Homopterous Family Cicadidw. 199 



transverse oblique fascia before eyes, black ; pronotum with the 

 lateral and posterior margins virescent, the disk with two central — 

 sometimes broken, longitudinal fasciae united posteriorly, black ; 

 mesonotum with two central obconical spots, on each side of which 

 are two small oblong anterior marginal spots, a broad sublateral 

 fascia, and a large spot in front of cruciform elevation anteriorly 

 lanceolately produced, black ; abdomen with the segmental margins 

 obscure olivaceous ; a central anterior spot to face, ochraceous 

 margined with black, and a black fascia between face and eyes ; 

 tegmina and wings hyaline, the venation brownish-ochraceous, 

 tegmina with the transvei'se veins at bases of second and third apical 

 areas moderately infuscated ; length of head more than half the 

 breadth between inner margins of eyes, front moderately prominent ; 

 pronotum with the lateral margins angulate a little before the 

 posterior angles ; opercula in male longer than broad, centrally 

 overlapping, their lateral margins a little sinuate, their apices 

 broadly rounded and not extending beyond basal abdominal 

 segment ; rostrum reaching the posterior coxse, its apex piceous ; 

 anterior femora armed beneath with two long spines and a smaller 

 one near apex. 



Long. excl. tegm. £ 25 millitn. Exp. tegtn. 77 millim. 



Red). Madagascar; Ikongo and Morondava (Paris 



Mus.). 



Cicada pulverulenta, sp. n. 



Pale brownish-ochraceous, shortly but thickly griseously pilose ; 

 head with the lateral areas of front, lateral apical margins of 

 vertex, and a transverse fascia between eyes, piceous ; pronotum 

 with two central longitudinal lines — united posteriorly, and the 

 incisures, piceous ; mesonotum with four obconical spots of which 

 the two central ones are smallest, a central lanceolate spot, and a 

 small spot in front of each anterior angle of the cruciform elevation, 

 piceous ; abdomen above densely griseously pilose, the disks of first 

 and second segments distinctly darker in hue; body beneath pale dull 

 ochraceous ; a fascia between eyes and a large spot on face, piceous ; 

 opercula greyishly tomentose ; basal segmental margins pale cas- 

 taneous ; tegmina and wings pale hyaline ; tegmina with the venation 

 and costal membrane ochraceous, both finely spotted with white ; 

 transverse veins at base of second, third, and fifth apical areas and 

 small spots near apices of longitudinal veins to apical areas, fuscous ; 

 wings with the veins ochraceous ; length of head not more than half 

 the width between eyes ; head including eyes about as wide as base 

 of mesonotum ; opercula in <£ not passing base of abdomen, sub- 



