DESCRIPTION OF A NEW GENUS AND SPECIES OF CICADIDAE 



COLLECTED BY DR. MODIGLIANI AT MENTA WEI ISLAND 



BY W. L. DISTANT 



Muda, n. gen. 



Body moderately long and slender. Head broad, including eyes 

 about as wide as the anterior margin of the mesonotum ; the 

 vertical angles prominently and angularly produced ; ocelli about 

 as wide apart from eyes as from each other. Pronotum with 

 the lateral margins very slightly convex, the posterior angles 

 somewhat lobately recurved. Anterior femora distinctly and pro- 

 minently spined. Tegmina and wings hyaline ; tegmina with the 

 basal cell much longer than broad, apical areas eight in number 

 the costal area distinctly broadened and sulcated at end of radial 

 area ; wings with six apical areas. 



This genus is allied to Rustia, Stài, from which it may at 

 once be distinguished by the laminately produced head , the 

 non-sinuated lateral margins of the pronotum and by the wings 

 having six apical areas. 



This genus is founded on two female specimens and conse- 

 quently no proper description can be given of the tympana and 

 opercula. 



Muda concolor, n. sp. — Body above and beneath, legs and 

 rostrum, ochraceous; ocelli castaneous; eyes pale brownish. 



Tegmina and wings pale hyaline, the venation ochraceous. 



Rostrum about reaching the posterior coxae. 



Leng. excl tegmina 9 12 millim.; exp. tegm. 31 millim. 



Hah. Mentawei Island (Modigliani). 



