MOTIONS OF INSECTS. 327 
observed, the cushions of the Buprestes are something 
very like them, particularly those of B. fascicularis, L.— 
A Brazilian beetle in my cabinet, belonging to the 
family of the Cleride, but not arranging well under any 
of Latreille’s genera, which I have named Priocera va- 
riegata, has curious involuted suckers on its feet.—The 
strepsipterous genera Stylops, K. and Xenos, R., are re- 
markable for the vesicles of membrane that cover the un- 
derside of their tarsi, which, though flaccid in old speci- 
mens, appear to be inflated in the living animal or those 
that are recent*. It is not improbable that these vesicles, 
which are large and hairy, may act in some degree as 
suckers, and assist it in climbing. 
The insects of the Orthoptera order are, many of 
them, remarkable for two kinds of appendages con- 
nected with my present subject, being furnished both 
with suckers and cushions. The former are concavo- 
convex processes, varying in shape in different species— 
being sometimes orbicular, sometimes ovate or oblong, 
and often wedge-shaped—which terminate the tarsus 
between the claw, one on each foot. They are of a hard 
substance, and seem capable of free motion. In some 
instances», another minute cavity is discoverable at the 
base of the concave part, similar to that in Cimbex lutea‘. 
The latter, the cushions, are usually convex appendages, 
of an oblong form, and often, though not always, divided 
in the middle by a very deep longitudinal furrow, at- 
tached to the underside of the tarsal joints. Sir E. Home 
is of opinion that the object of these cushions is to take 
@ Kirby in Linn. Trans. xi. 106. t. vill. f. 13. a. 
> I observed this in the hind legs of 'a variety of Gryllus migratorius. 
© Philos. Trans, 1816. t. xix. f. 5. 
