Hygienic Laboratory, Bulletin 46. 
Plate VIIL 
Fig. 1.— Transverse section of female mite, just 
behind fourth pair of legs; Semidiagram- 
matic. dig. cell, digestive cell; vag., vagina; 
tr., trachea; mus., muscle attached to legs; 
sp., sporont; ook.. ookinet. Fig. 2. — Diagram 
of digestive tract and excretory organs, vent, 
ventriculus; vent. div.. ventricular diverticu- 
lum; mol. tub., malphigian tubule; cl., excre- 
tory bladder; ces., oesophagus. 
