78 
MEMBRA CIDAE. 
and punctured tubercle ; the posterior end terminates in a small triangular process ; 
tegmina brown and unicolorous. 
Size, 5x5 mm. 
Habitat. —Duenas (Champion); Aceitumo (Salvin). 
Copied by permission from the B.C.A. 
SPHONGOPHORUS BALLISTA, Am. Serv. 
(Plate XIV. fig. 1, la.) 
Jlypsavohenia ballista, Germ. l.c. p. 281. Sphongophorus ballista, Walk. l.c. p. 187. Sphongophorus 
ballista, Fowler, l.c. Tab. IT. fig. IS, 19, p. 27. Sphongophorus claviger, Stal. p. 68. 
Sphongophorus apical is, Still, l.c. p. 273. 
Pronotum produced forwards and then backwards into a long flat thin horn 
rising above the shoulders, which nearly meets a shorter erect horn on the posterior 
extremity of the pronotum, and this almost completes a circle ; colour brownish-grey, 
punctured ; tegmina long and narrow ; the apical portion sienna-brown, with a broad 
limbus; two small pale patches are sometimes seen at the insertions ; legs ochreous ; 
first and second tibiae at least, spatulate. 
Fowler notes that the B.C.A. Collection is very large, and comprises more than one 
hundred examples. They greatly vary in the shape of the processes of the pronotum ; 
as a rule, in those forms which represent the males the apices are knobbed, whilst 
in the females they are cleft. There is also much variation in the posterior processes, 
some of which are porrect, as in my figure of a male taken from the Hope Collection. 
Size, 12 x 10 mm. 
Habitat. —Mexico, Guatemala, Panama, Bogota, Demerara. 
SPHONGOPHORUS CLAVIGER (var?), Stal. 
(Plate XIV. fig. 2, 2a.) 
Sphongophorus claviger, Stal. l.c. Stett. ent. Zeit. ( 1 864). p. 68. 
This insect differs in several particulars from that immediately preceding, but 
after what Canon Fowler has noted, hesitation may arise as to deciding its real 
specific value. 
The insect is smaller, and wants the process at the pronotal posterior apex; 
the procephalic horn is also clavate as well as cleft, and here it approaches one of the 
characteristics of the Old World genus Hypsauchenia ; there are besides conspicuous 
grey patches on the shoulders and below the wing insertions. 
The figure above is drawn from one of several named B.M. examples, but it does 
not well agree with that given in the B.C.A. monograph. 
Size, 8 x 12 mm. 
Habitat. —Mexico. 
