MEMBRA CIDJ2. 
271 
TUBERCULOCENTRUS, Goding. 
T. solus, Goding, Canad. Ent. 27, p. 275. California. 
UROXIPHUS, Am. & Serv. 
U. maculiscuium, Am. & Serv. l.c. p. 550, PL 12. Senegal. 
XIPHISTES, Stal. 
X. Juscicornis, Germ. (Oxyrbachis) l.c. p. 232. Stal, Hemip. Afri. IV. p. 85. 
XIPHOPCEUS, Stal. 
*X. phantasma, Sign. Stal, Hemip. Afr. IV. pp. 87 and 91. Five species. Celebes. 
N.B.—It lias been before noted that the sub-family Centrotidae in several respects 
is undefined in its characters as regard the scutellum and the posterior horn, which last 
appendage in fact sometimes appears to be almost cephalic. On this account, I have 
excluded certain genera from the Centrotidse and partly so from their general 
distribution over the Old World. These genera are Lycoderes, Bocydium, Hypsau- 
chenia, Micreune, CEda, Nessorhinus, Anchon, Kleidos and Elaphiceps, though 
authors have comprised some of these in the group. 
In the above abridged list these genera are, however, included in the Centrotidse, 
and thus they occur twice over. 
