HETEROPTERA, — SCUTELLERIDZ. 485 


terially elongated * ; the possession of two ocelli, and the ordinarily 
3-jointed tarsi, furnished with two pulvilli. Several of the figures in the 
present page are intended, not only to illustrate the structure of the 
present family, but also the general characters of the land-bugs. 
Fig. 122.1. represents Pentatoma rufipes about twice the natural 
length, with the antennz and legs truncated, and with the wings on 
one side of the body extended; fig. 2. the under side of the head and 
prothorax of the same insect, showing the elongated 4-jointed rostrum 
(labium), the basal joint of which is partially covered by the elongated 
and attenuated labrum (fig. 4.) ; and at the apex are perceived the 
tips of the four enclosed sete, representing the mandibles and max- 
illee : fig. 3. represents the head of the same insect sideways, to show 
the lobes defending the base of the labium, and the manner in which 
the latter is able to bend, with two of the enclosed setz drawn 
out at the tip of the second joint+ ; the tips of the other two, seen 
at the end of the rostrum: jig. 5. (after Savigny) represents the 
dilated base of the four internal seta, as seen within the head on re- 
moving the clypeus: the two external setz are the mandibles, and the 
other two the maxillze; between the middle pair is perceived the pointed 
cartilaginous tongue {, behind which is a small oval aperture, which 
is the orifice of the pharynx: jig. 6. antenna of Pentatoma rufipes ; 
Jig. 7. under side of the body of Pent. smaragdina Dufour; x repre- 
* See the interesting memoir of Burmeister, on the structure of the antenne of 
this family, in Silbermann, Rev. Ent. No. 7. 
+ The sete are capable of being drawn out of the entire length of the labium, 
De Geer has described the manner in which they are replaced ; he, however, figures 
and describes only three seta, whereas there are certainly four. 
¢ Analogous to fig. 89.8. x, 9.x (p. 257.), and to the trifid tongue in Nepa, 
fig. 119. 13. (p. 458.) 
Lip ee! 
