Hupoda.] PHYTOPHAGA. 265 
ginate ; the thorax is as long as or longer than broad, much narrower 
as a rule than the elytra, the latter being more or less elongate and often 
more or less narrowed towards apex ; the legs are long, and the posterior 
femora are often produced a long distance beyond the sides of the elytra, 
and are in many cases armed with teeth; the anterior coxe are exserted 
and conical-globose, and the anterior coxal cavities are nearly always closed 
behind ; the group may be divided as follows into three tribes :-— 
I. Prosternum distinct between anterior coxe; posterior cox 
almost contiguous; first ventral segment of abdomen evidently 
longer than second ; apex of mandibles entire. . . . . . 
II. Prosternum very narrow between anterior cox, which are 
almost contiguous ; apex of mandibles more or less split. 
i, First ventral segment of abdomen as long as or longer than 
all the rest taken together ; antenne somewhat approximate at 
base ; posterior coxe widely separated . . . . . . . « DONACIINA., 
ii. First ventral segment of abdomen, as a rule, scarcely longer 
than second; antennz distant at base; posterior coxe mode- 
rately separated 566 Oo 9 5 0 6 6 6 G Oyo oo MON OoMnI, 
SAGRINA, 
SAGRINA. 
This tribe contains sixteen genera and upwards of one hundred 
species ; some of these are large and very conspicuous insects; this is 
especially the case with the genus Sagra; in this genus the hind legs 
are very strongly developed, so that the species might be thought at 
first sight to be very large Halticide ; they appear, however, to use these 
legs for suspension, and to drop on the least alarm; only one genus, 
represented by two species, is found in Europe; both of these occur 
rarely in Britain. 
ORSODACNA, Latreille. 
This genus, as at present known, contains fourteen species, which 
are found in Europe, Central Asia, Ceylon, North America, and Chili ; 
they are rather elongate insects with the eyes entire, large, round and 
prominent, and the thorax much narrower than the elytra and contracted 
behind ; the elytra are subparallel and the legs are moderately long, with 
the apex of the tibie spined and the tarsal claws armed with a sharp 
tooth ; the two British species may be distinguished as follows :— 
I. Upper surface glabrous or almost glabrous, less thickly 
punctured EPPA SA See CS MGC) © Coe aoe ee ae 
Il. Upper surface with thick and rather long pubescence, more 
thicklypunctured 2) is a) Le ee) 2 Ol ammonal Pane 
O. cErAsI, LZ. 
©. cerasi, L. A very variable species as regards size and colour, 
elongate, with the upper surface almost glabrous and the under-side 
thickly pubescent ; thorax subcordate, sparingly punctured, together 
with the head usually rufo-testaceous ; the colour, however, is some- 
times darker, and the suture and sides of elytra and more or less of the 
