EXPLANATION OF PLATES II- VIII. 
All The figures on Plates 1I-YII, except those specially otherwise designated, are 
taken from preparations made from Caloptenus femur-rubrum. The figures on Plate 
VIII, are all from Anabrus purpurascens. All hut three orfour of the figures were drawn 
in outline w ith the camera lucida, and the details added afterward with free hand. The 
drawings, with the partial exception of Fig. 58, are nowise diagrammatic, hut faJS 
short in clearness of the actual preparations. 
EX PL AX AT I ON OF THE LETTERING. 
An., anus. 
art., articulating meinbran 
Bd.. muscular band. 
ch., cord of ovarian tube. 
col., colon. 
conn., connective tissue. 
Cr., 1 Cr.,- crop. 1st, "2d segment. 
Cii., cutrcula. 
cys., wall of spermat'oeyst. 
J)., dorsal arch of body wall. 
d.', d." , dental processes. 
Dir.. di\ erticulum of stomach. 
D. R., dorsal nerve roots. 
Eg., egg. 
f.j. Ik. ductus ejaculatorius. 
Ep., epithelium. 
F.. furrow between intestinal folds. 
Gr., granular layer, inside epithelium. 
O. 7... ganglion-cells. 
A. A.', cuticular hairs. 
II., ileum. 
In. in., internal muscular coat. 
/... longitudinal muscles. 
M., inouth. 
muc, must le. 
muc, C. circular muscles. 
M. v., malpighian vessels. 
Oe. oesophagus. 
Or., ovary. 
Ovd., anterior coecum of oviduct. 
P., proventriculus. 
p., pore canals. 
r. m.. musculus respiratorius. 
rid., cuticular ridges. 
Te., testes. 
Tr., tracheae. 
Tu., external tunic. 
Ft., uterus. 
V., ventral arch of body wall. 
Yen., ventriculus. 
Y. R.. ventral nerve roots. 
V. mm., vesienla? seminales. 
