Mr. W. L. Distant on Ilomoptera. 329 



XLYL—Rh7/nchotal Notes.— XXYU. By W. L. DISTANT. 



HOMOPTERA. 



Fam. CicadidsB. 



Subfara. Cicadinje (continued from p. 303). 



Division Cicadaria. 



In this division the lateral margins of the pronotum are 

 more or less convex, but not toothed ; the tegmina and wings 

 are quite clear, as in many species of the genus Cicada^ or 

 semiopaque, as represented in the genus Cryptotympana; 

 the head is broad and (including eyes) always a little, and 

 generally considerably, wider than base of mesonotura. 



Synopsis of Oenera. 



A. Metasternum not or very sliglitly elevated, and not 



provided with a posterior process. 



a. Lateral margins of the pronotum with a distinct 



anterior lobe Macrotristria. 



b. Lateral margins of pronotum without anterior 



lobe Cicada. 



B. Metasternum elevated at middle and furnished with 



a posterior process directed backward Cryptotympana. 



Genus Macrotristeia. 

 Macrotristria, StSl, GEfv. Vet.-Akad. Forh. 1870, p. 714. 

 Type, M. angularis, Germ. (^Cicada). 



Macrotristria nigronervosa, sp. n. 



$ . Head, pronotum, and mesonotum ochraceous ; head 

 with the face castaneous, ornamented with a piceous central 

 fascia and an oblique ochraceous spot on eacli side of base, 

 the area of the ocelli, inner margins of eyes, and narrow 

 basal margin black ; pronotum with two very small sub- 

 basal, centra], black spots ; mesonotum with two central 

 obconical spots on anterior margin black, each with a small 

 ochraceous spot, the anterior margin on each side of these 

 spots also narrowly black ; abdomen above black, posterior 

 segmental margins narrowly ochraceous, the margin of the 

 sixth and base and apex of anal segment broadly ochra- 

 ceous; body beneath and legs ochraceous, anterior and inter- 

 mediate tibiae and tarsi castaneous, body more or less 

 Ann. & Mag. N. Hist. Ser. 7. Vol. xiv. 23 



