ORISMOLOGV. W.'> 
back.— Ex. Phalangium. Plate XXVI. Fig. 
43. h. 
2. Compound {Co mpositi). Eyes which consist of an 
aggregate of hexagonal lenses. — Ex. All the 
Winged Orders. Plate XIII. Fig. 10. and XXVI. 
Fig. 38—42 h. 
a. Sessile (Sessiles). Eyes that do not sit upon a 
footstalk. — Ex. Most insects. Plate XXVI. 
Fig. 40, 41. 
a. Superior (Superiores). When they are placed in 
the upper part of the head. — Ex. Libellidina. 
|3. Lateral {Laterales). When they are placed in 
the side of the head. — Ex. Apis. 
y. Inferior (Inferiores). When they are placed in 
the lower side of the head.— Ex. The lower pair in 
Gi/rinus. 
8. Posterior (Poster iores). When placed in the pos- 
terior part of the head. — Ex. Locust a. 
s. Anterior (Anteriores). When placed in the ante- 
rior part of the head. — Ex. Crabro, Goerius olens, 
&c. 
£ Medial (Medii). When placed in the middle part 
of the head. — Ex. Harpalus, &c. 
)j. Belting (Cingentes). When the eyes nearly meet 
both above and below the head, so as to form a 
kind of belt round it. — Ex. Culex pipiens, Cordylia 
Palmarum. 
0. Immersed (Immersi). When they are quite im- 
bedded in the head.— Ex. The Melasoma or Dark- 
ling beetles. 
». Prominent (Prominuli). When they stand out 
from the head. — Ex. Cicindela. 
b. Columnar (Columnares). When they sit upon a 
y 2 
