EVOLOCERA.—FALLIA. 629 
Antenne short; first and second joints thick, the following joints up to the eighth 
small; ninth large, not quite so long as broad, tenth not quite so large as the ninth. 
Head broad and short; eyes small but prominent. Thorax very short and broad, 
closely applied to the elytra, the front angles not prominent; running along the basal 
margin there is a fine transverse depression, rendered conspicuous only by the short 
longitudinal elevation that limits it on each side. There is no sutural stria on 
the elytra. 
We have received a small series of this species. According to a note of Mr. Cham- 
pion’s, it lives in ants’ nests. 
FALLIA, gen. nov. 
Corpus rotundatum, superne convexum, glabrum. Antenne 8- vel 9-articulate ; clava magna, uniarticulata. 
Coxe omnes minute, globose, haud prominentes, anteriores modice separate ; prosternum absque processu 
libero. 
This is a peculiar genus, with the compact form of certain Corylophide. ‘The 
antenne are somewhat geniculate, to permit of the first joint being deflexed in a short 
groove at the inner margin of the eye; the first joint is short and broad, the second 
thick, still shorter, the third and fourth elongate (or the fourth divided into two, 
making the antenne 9- instead of 8-jointed); fifth to seventh small, eighth forming a 
large club. Eyes prominent, contiguous with the base of the antenne. Palpi short 
and thick; mentum minute. Prosternum very short, abruptly bent upwards behind 
the coxa, closing the acetabula. Mesosternum large, separated by a straight line from 
the metasternum ; its anterior part abruptly declivous in correlation with the back of 
the prosternum, above this projecting so as to form an apparently free triangular 
process (as in certain Spheeridiides), Hind coxe small, globose, widely separated. 
Abdomen with an elongate basal ventral segment and four short ones. 
The genus will be readily identified by the very minute globose hind coxe, 
which are separated from the side by a space three or four times their own 
diameter. ‘The metasternum has a small notch for each of these coxe, so that 
it is probable that it is really folded over them, and that these are larger than they 
appear to be: in other words, I anticipate the structure will be found to be similar 
to that of the Discolomine. 
Failia is no doubt closely allied to Aphanocephalus, Woll., but it is a much less 
remarkable form, the pronotum being normal in shape and arched in front, so as not 
to completely cover the head or eyes, while the parts of the body beneath are much 
less perfectly co-adapted ; the epipleure are much less developed, and all the coxe are 
less widely separated. 
I regret that we have only a very few examples of any of the species, so that the 
characters cannot be fully investigated, but it is not unlikely that the genus will be 
