410 
HniAl) CAPSULE ANn MOUTH- PARTS OF CFILOROPS T.ENIOPUS. 
References. 
(1) COMSTOCK, J. H., & KocHi, C. (1902). "TIip Skeleton of the Head of 
Insects." The American Naturalist, vol. xxxvi. 
(2) LOWNE, B. T. (1890-95). "Anatomy, Physiology, Morphology, and 
Development of the Blow-Fly." London. 
(3) Peterson, A. (191G). " The Head Capsule and Month-parts of Diptera." 
Illinois Biological Monographs, vol. iii. No. 2. 
Index lettering to Text-figures. 
a.a., d.a., andp,«. anterior, dorsal, and pos- 
terior arms of the tentorium. . 
a.i., (l.i., and p.i. their points of invagi- 
nation. 
a.p. antero-ventral process of ocular scle- 
rite. 
art. articular surface for neck sclerite. 
h.ph. basipharynx. 
h.t. body of the tentorium. 
ci. clypeus. 
cu. cornu of basipharynx. 
cl.ph. distipliarynx. 
E. compound ej'e. 
e.y. epipharyngeal groove. 
ep. epipharyux. 
f.s. frontal suture. 
lip. hypopharynx. 
la. labellse. 
Ih. labrum. 
in. membrane separating hypopharynx 
from distipharynx. 
ni p. maxillary palp. 
pa.p. 
p.o. 
p.p. 
neck sclerite. 
point of junction of dorsal and an- 
terior arms of the tentorium, 
occipital foramen. 
ocnlar sclerite. 
ocellar triangle. 
point of junction of anterior and pos- 
terior arms of the tentorium. 
thickening of dorsal margin of oral 
depression. 
parapostgenal thickening. 
parocciput. 
po.stero-dor3al process of ocular scle- 
rite. 
ridge on occiput. 
slit-like invagination containing an- 
terior arm of tentorium. 
sense (?)-organ on labrum. 
stipes. 
tornia, 
theca. 
