ORTHOPTERA. 
321 
above. The clypeus is very short, the postclypeus less than one-half as 
long as the anteclypeus. The labrurn is long and narrow. The gular 
region is broad, the gen® small. 
THE THORAX. 
Notum. 
Pronotum. This part is immensely developed, being equal in bulk to 
the rest of the thorax. 
Mesonotum. This is remarkably short, not quite so long as broad, and 
about one-half as long as the metanotum. There is no prsescutum. The 
scutum is, along the median line, shorter than the scu tell urn, and is 
excavated behind in the middle to receive the scutellum, which is rather 
large and broader than long. There is no postscutellum. 
Metanotum. More than twice as long as the mesonotum. The scutum 
is as long as broad, with a boss on each side above, and a posterior, 
rather flat area, succeeded by the scutellum, which is broader than 
long. 
Pleurum. 
Propleurum. This is represented by an irregularly triangular scle- 
rite, whose apex below bears a stout, downward-projecting spine. The 
coxa is very thick and rather large, and excavated in front to receive 
the posterior prolongation of the base of the femur, which is remarkably 
short, thick, large, and broad, as is the tibia, this and the tarsi being de- 
scribed by other authors. 
Mesopleurwm. The episternum and epimerum are moderate iu width, 
and oblong; the episternum is broader than the epimerum, and the 
sclerites are placed vertically and not obliquely. 
Metapleurum. The sclerites are large and broad, the sides of this 
segment being square and vertical, though the sclerites themselves are 
obliquely situated. The episternum is one large piece resting below on 
the sternum ; the epimerum is as long as the episternum, but narrower. 
The hinder coxa} are less spherical and swollen than the mesocox®. 
Sternum. 
The prosternum is obsolete, being reduced to a narrow membrane 
situated between the coxa;, which closely meet. 
The mcsoslernum is very large and broad, with a curvilinear impressed 
line between the cox®. 
THE ABDOMEN. 
There are ten uromeres; ten tergites, the tenth rudimentary, triangular, 
short. There are nine urosternites. The pleural ridge is well developed. 
The cercopoda are long and filamental, thick at base, multiarticulate. 
There are no prothoracic stigmata, but the first pair is situated on the 
back of the mesothorax behind the cox® ; and the second pair on the 
metathorax behind the epimera and above the cox®. I can discover 
only seven pairs of abdominal spiracles. 
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