A. D. Imms 
131 
h. 
i. mus. 
1. d. 
P. d 1 . 
L e. 
1. muse, 
l.pl. 
l. t. m. 
in. 
in. b. 
m. c. 
m. g. 
m. n. 
in. pi. 
in. s. 
VI. x. 
ner. 
o. 
oen. 
o. VlllS. 
o. n. 
V • 
p. c. 
ph. 
ph. ic. 
pi. 
p. in. 
p. s. 
r. 
sc. 
s. col. 
S. col. ]). 
s. d. 
s. g. 
sp. 
sup. g. 
t. 
t. b. 
t\ b\ 
t.f. 
t. f. m. 
t'.f. 
t. f. d. 
th. (j. i. 
t. pi. 
tr. 
w. d. 
x- - - y 
Hypodermis. 
Inner vertical muscle of spiracular lobe. 
Imaginal bud of left middle leg. 
Imaginal bud of labium ; left of the paired elements (section some¬ 
what oblique). 
Larval eye. 
Longitudinal muscles of spiracular lobe. 
Lateral plate of spiracular lobe. 
Longitudinal tergal muscles. 
Muscle attached to supporting collar of heart. 
Striated muscle bands (in section). 
Mother cells. 
Mid-gut. 
Median nerve. 
Median plate of spiracular lobe. 
“ Mesenchyme. ” 
Muscle of maxilla. 
Lateral nerve. 
Ommatidia. 
Oenocytes (smaller). 
Outer vertical muscles of spiracular lobe. 
Optic nerve. 
Glutinous peg. 
Pericardial cells. 
Pharynx. 
Wall of pharynx. 
Lateral toothed plate. 
Peritrophic membrane. 
Peripodial space. 
Beetum. 
Basal supporting plate of spiracular skeleton. 
Supporting collar of heart (anneau de soutien). 
Posteriorly directed prolongations of the supporting collar. 
Median salivary duct. 
Sub-oesophageal ganglion. 
Spiracles. 
Brain. 
Tracheal trunk to anal gills of its side. 
Transverse chitinous band. 
Transverse intersegmental band. 
Larval “tail-fin.” 
Muscles of larval “ tail-fin.” 
Terminal filament. 
Imaginal bud of pupal “ tail-fin.” 
Prothoracic ganglion. 
Terminal plate of spiracular lobe. 
Trachea. 
Imaginal bud of wing. 
Direction of the transverse section Fig. 2. 
