312 Mr. AV. L. Distauf <9;i Homoptera. 



AVashington, who has sent me a specimen of this species and 

 lias also assisted my revision by procuring me examples of 

 many North- American species for comparison. 



Proarna hufo, sp. n. 



Body pale castaneous, finely and obscurely griseously 

 pilose ; area of the ocelli and mesonotum more or less piceous, 

 the last with the lateral margins and the margins of two 

 central anterior obconical spots pale castaneous ; a spot at 

 apex of front, lateral margins of vertex of head, lateral 

 margins of pronotum, and cruciform elevation ochraceous ; 

 tegniina and wings pale hyaline, the first with about basal 

 half of venation and the costal membrane and area ochra- 

 ceous, remaining venation brownish ochraceous, a strongly 

 broken curved linear fascia consisting of a little more than 

 the basal vein of the second ulnar area, a spot on the posterior 

 vein of third ulnar area, and a little more than the transverse 

 vein at the base of lower ulnar area infiiscate ; small spots at 

 transverse veins to apical areas, and a series of ratlier larger 

 outer marginal spots, fuscous. Abdomen in male short and 

 broad, about as long as space between apex of head and base 

 of cruciform elevation ; head (including eyes) slightly 

 narrower than base of mesonotum, eyes not projecting beyond 

 anterior angles of pronotum ; vertex of head at area of ocelli 

 longer than front ; posterior angles of pronotum only mode- 

 rately subangulately produced, its lateral angles a little 

 convexly rounded; rostrum reaching the posterior coxae; 

 tegniina with the transverse vein at base of second apical area 

 somewhat vertical, not oblique. 



Long., excl. tegm., S ^•-'; ? 28 mm. ; exp. tegm., ^ ? 

 55-57 mm. 



Hah. Argentina {S. W. Thomas, Biit. Mus.) ; Bolivia 

 {Steinhach, Brit. Mus.). 



Allied to P. Bergi, Dist., but smaller; tegmina much less 

 maculated and shaded; apical area 1 = 3 in length, not 

 longer than 3 as in P. Bergi; breadth of apical area 8 = 

 length of 7, not broader as in P. Bergi. 



Genus Tympanotekpes. 



Tympanoterjyes, Stal (]iart.), Ann. Soc. Ent. Fr. (4) i. p. 614 (1861) ; 

 Hem. Afr. iv. p. 7 (1866). 



Type, T. serricosta, Germ. {Cicada). 



Of the species Stal originally stated were representative of 

 his genus Tgmpanoterpes, he subsequently (in 186-i) removed 

 a no small proportion to his genus Proarna. The Cicada 

 serricosta, Germ., must be taken as the type. 



