52 HOMOPTEKA 



breadth between eyes, lateral margins obliquely continuous to face or very slightly sinuate; pronotuni 

 distinctly shorter than mesonotum, its lateral margins distinctly and generally acutely toothed before 

 middle; abdomen considerably longer than space between apex of head and base of cruciform elevation; 

 tympana covered, tympanal flaps about as long as broad; rostrum reaching the posterior coxae; opercula 

 obliquely divergent, sometimes very short; tegmina and wings hyaline. 



Type. — M. tripurasura, Distant. 



Geographical distribution of species. — Oriental and Malayan Regions; Corea, China and 

 Japan. 



A. Opercula in male with their inner margins obliquely straight and narrowed to apices. 

 a. Opercula in male extending to at least two-thirds the length of abdomen. 



1. M. tripurasura. India. 



Duudubia tripurasura, Distant, Trans. Ent. Soc. Lond. (18S1) p. 635. 

 Cosmopsaltria tripurasura. Distant, Mon. Orient. Cicad. p. 55, t. 4, f. 8a,b 

 1 1890). 



a' . Opercula in male scarcely reaching or slightly passing middle of abdomen. 



2. M. durga. India. 



Cosmopsaltria durga. Distant, Trans. Ent. Soc. Lond. (1881) ;p. 637, Won. 

 Orient. Cicad. p. 56, t. 4, f. 6a,b (1S90). 



3. M. opalifera. Corea. Japan. 



Duudubia opalifera, Walker, List Horn. Vol. I, p. 56 (iS5o). 

 Cosmopsaltria opalifera, Distant. Mon. Orient. Cicad. p. 56. t. 5, f ia,b 

 (1890). 



4. M. gamameda. — PI. 6, Figs. 43 a, b, C. Ceylon. 



Cosmopsaltria gamameda , Distant, Entomologist (1902), p. 256. 



B. Opercula in male with their inner margins nearly straight, but not narrowed to apices. 



5. M. khadiga. Malay, Peninsula. 



Cosmopsaltria khadiga, Distant. Trans. Ent. Soc. Lond. (1904), p. 671, t.3o. 



f. ga.b. 



C. Opercula in male with their inner margins convexly oblique, their apices narrowed and more 

 or less angulated. 



c. Opercula in male reaching penultimate abdominal segment. 



6. M . tavoyana. Burma. Tenasserim, Malay 



Duudubia tavoyaua. Distant, Ann. Mag. Nat. Hist. (6), Vol. 1, p. 292(1888). Peninsula. 



Cosmopsaltria tavoyaua. Distant, Mon. Orient. Cicad. p. 55, t. 5, f. 4a, b 



(1890). 



c' . Opercula in male reaching to about or a little less than two-thirds the length of abdomen. 



7. M. cassandra. N. India. 



Meimuna Cassandra, Distant, Ann. Mag. Nat. Hist. (8), Vol. 9. p. 642 (1912). 



8. M. silhetana. India. 



Cosmopsaltria silhetana. Distant, Ann. Mag. Nat. Hist. (6), Vol. i,p. 2g5 

 (1888); Mon. Orient. Cicad. p. 62, t. 6, f. za-b (1890). 



9. M. mongolica. China. 



Cosmopsaltria mongolica. Distant.Trans.Ent.Soc. Lond. (1 881 ),p 638; Mon. 

 Orient. Cicad. p. 62, t. 4, f. 3a, b (1890). 

 10. M. microdot. India. 



Duudubia microdot!, Walker, List Horn. Vol. 1, p. 55 (i85o). 

 Cosmopsaltria microdon. Distant, Mon. Orient. Cicad. p. 57, t. 4, f. i6«, 4(1890). 



