CURCULIONID.2—CURCULIONIN .E—PHYTONOMINI, 87 
Here it will readily be seen that the greatest and the only conspicuous 
differences between the American and European Tertiaries lie, on the one 
side, in the Cleonini, which contain nearly one-third of the Curculioninz of 
the European deposits, and hardly more than 7 per cent of those of the 
American; and ou the other side, in the Anthonomini, which do not exist at 
all in the European Tertiaries, but form nearly one-fourth of the American 
Tertiary Curculionine, and in the Barini, which comprise nearly 16 per cent 
of the American Curculioninze and hardly 3 per cent of the European. No 
such striking differences appear in comparing the numerical preponderance 
of the tribes in the recent and fossil Cureculionins of North America, the 
greatest disparity appearing in the reverse proportions of the Anthonomini 
and the Cryptorhynchini, the former being relatively more than twice as 
important in the Tertiaries as now, the latter more than twice as important 
now as in the Tertiaries, and in the Hylobiini, where the fossils, though not 
numerous, formed 10 per cent of the total fauna in Tertiary times, while 
they hold only one-fourth of that percentage in the existing fauna; a rela- 
tion again nearly reversed in a group of greater importance in recent times, 
‘the Phytonomini, where the percentage to the whole fauna is now nearly 
three times greater than it was in Tertiary times. In all other cases the 
difference between recent and Tertiary times, where the tribe was repre- 
sented at all, is insignificant. In all these cases of distinction between the 
recent and Tertiary representation, excepting only in the Phytonomini, the 
disparity would have appeared still greater if the Tertiary Curculionin: of 
Europe had been compared with the recent fauna of North America; from 
which we may conclude that as far as the Curculioninze are concerned, the 
Tertiary fauna of America shows ‘closer relationship to the existing Ameri- 
can fauna than does the European Tertiary fauna. 
Tribe PHYTONOMINI. 
Two genera of this group, Phytonomus and Hypera, two species of the 
former, one of the latter, have been recognized in the European 'Tertiaries 
in the Oligocene of Aix, Provence; in the American Tertiaries, two species 
have been found, one each of Lepyrus and Listronotus, in the Green River 
deposits. 
