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REFERENCE LETTERING. 
abd. 5, 6, 8, 9. 
Fifth, sixth, eighth and ninth abdoi 
a lid. g. 1 . 
First abdominal nerve ganglion. 
abd. g. 8+9. 
Ganglion formed by the concrescence 
abdominal segments. 
al. m. 
Alary muscle. 
a. in. 
Adductor muscle of mandible. 
a 1 , m 1 . 
Abductor muscle of mandible. 
a. v. 
Antennal nerve. 
ao. 
Aorta. 
up. 
Aperture of salivary duct. 
at. d. 
Imaginal bud of antenna. 
at. vi. 
Antennal muscle. 
b. 
Brush. 
b. m. 
Inner retractor muscle of brush. 
b l . vi 1 . 
Outer ,, ,, ,, ,, 
c. 
Cuticle. 
c. c. 
Lateral cellular cord. 
c. coin. 
Cerebral commissure. 
d. 
Rudiment of generative duct. 
d. tr. 
Main longitudinal tracheal trunk. 
d. v. 
Dorsal vessel. 
e. 
Eye. 
ep. m. 
Epipharyngeal muscles. 
f. b. 
Fat-body. 
/.«• 
Frontal nerve. 
/• Pi¬ 
Fan-like plate. 
tt- 
Abdominal nerve ganglion. 
g. d. 
Imaginal buds of gonapophyses. 
g. 1 
Ganglionic layer. 
