256 
NATURAL HISTORY OP 
The fifth family of tetramerous beetles, accord- 
ing to the system of Latreille, comprehends the ge- 
nus Sagra, which has the palpi terminated by an 
oval joint, the thorax cylindrical, and the antennae 
filiform, with the four lowest joints shorter than 
the others. The hinder thighs are very thick, es- 
pecially in one of the sexes. The species are con- 
fined to Africa, the island of Ceylon, and China. 
SAGRA BUQUETII. 
PLATE XXVII. 
Lesson's Illustrations de Zoologie , pi. 30. 
The male is about thirteen lines long and six 
broad. The surface of the body is perfectly smooth 
and polished, of a brilliant green, with purple and 
coppery reflections of the highest resplendency, 
especially on the elytra. The hinder thighs are 
remarkably long and thick, and armed beneath with 
a few acute teeth ; the hinder tibiae are garnished 
with long rust-red hairs. The female does not ex- 
ceed eleven lines in length. The body is not so 
much narrowed behind as that of the male ; the thighs 
of the hinder legs are oval, and the tibiae naked. It 
inhabits Cochin China, and is probably synonymous 
with S. Boisduvalii (Dejean), of which we have seen 
a multitude of specimens from Java. 
The Cassidjb, or Tortoise-beetles as they are 
some times called, are chiefly remarkable for a habit 
