ORISMOLOGY. 295 
18. Lunulet (Lumda). A small crescent-shaped spot. 
— Ex. Marginal spots above and below the Second- 
ary Wings in Melitcea Arlcmis, &c. 
19. Reniculus (Reniculus). A small kidney-shaped 
spot. — Ex. Upper Wings oiMamcstra Persicaria. 
20. Ocellus (Ocellus). An eye-like spot in the Wings 
of many Lepidoptera, consisting of annnli of dif- 
ferent colours, inclosing' a central spot or pupil, 
a. Pupil (Papilla). The central spot of the ocellus. 
Plate XIV. Fig. 1. t. An ocellus is called bipu- 
pillate, tripupillate, &c, when there are two, 
three, &c. of these spots. — Ex. Primary Wing of 
Hipparchia Tithonus, &c. Plate XIV. Fig. \.p. 
a. Hastate Pupil (Papilla hastat a). When the pupil 
is a halberd-shaped spot. — Ex. Pupil of Ocellus 
of Agfa Tau. Plate XIV. Fig. 1. k. 
b. Suffulted Pupil (Papilla siiffidta). When the 
pupil shades into another colour. — Ex. Primary 
Wing of Vanessa Io. 
b. Iras (Iris). The circle which incloses the pupil. 
Plate XIV. Fig. 1. u. 
c. Atmosphere (Atmosphccra). The exterior circle 
of the ocellus. Plate XIV. Fig. 1. v. 
21. Blind Ocellus (Ocellus caucus). An ocellus with- 
out the pupil. — Ex. Hipparchia Davus. 
22. Spurious Ocellus (Ocellus spurius). A circular 
spot without any defined iris or pupil. — Ex. Spot 
in the Disk of the Primary Wings ofColias Helicc. 
23. Simple Ocellus (Ocellus simplex). When the 
ocellus consists only of iris and pupil. — Ex. Ocelli 
on the under side of Primary JVings of Hipparchia 
Scmele. Plate XIV. Fig. 1. t, n, u. 
