156 
SPOLIA ZEYLANICA. 
The first four abdominal segments are very broad, and are 
almost concealed by the thorax on the one side and the wing- and 
leg-sheatlis on the other. 
“ The much more slender segments 5 and 6 (in the male 7 also, 
according to Chapman) are freely movable. The likewise very 
slender segments 7, 8, 9, and 10 (in the male only 8, 9, and 10-— 
Chapman) are again firmly ankylosed, and together form the blunt- 
rounded end of the pupa, which in many species is provided at the 
tip with a number of hooked unbent hairs. 
“ In the emerged pupa the abdominal segments 7, 8, 9, and 10 are 
somewhat pushed in under the free edge of the sixth abdominal 
segment.” (Hofmann, Z.c., pp. 341-342.) 
Chapman notes (T. E. S., 1896, pp. 137-139) that “ the dehiscence 
is of very nearly the macro type, the antennae separating from the 
head, the eye-covers remaining attached to the face-piece. It 
retains one, and only one, very marked micro character, viz., the 
Figure 4. 
•Dehiscence OrneocUcl |>u’|3Q. . 
„ Chaf^man^ 
1)^,3 Tejex to segments *, 0 zz eye ) 
0.= antenna. 1 ^ leg j m - mft.M II a . 
possession of a dorsal head-plate ; not only so, but this plate is 
of immense size, whilst the pro thorax is correspondingly reduced. 
Contrarily the pupa of Pterophorus retains most of the characters of 
a micro, the one that it has almost lost is this liead-plate, which is 
nearly evanescent, although it retains the function of carrying the 
eye-cover on dehiscence. 
“ Both have then been derived from the micro stirps, as we know, 
indeed, that all pupae have been; but the routes have obviously 
been divided for so long a period that it is justifiable to describe 
them as in nowise related, less probably than any two families of 
macros. 
“ The dehiscence (of the Orneodid pupa) is quite macro in charac¬ 
ter, the antennae separating from the face head parts, which remain 
attached to the eye-covers ; the lower parts of the appendage covers 
remain in situ, and are only separated at the head. There is a femur 
