FoLsoM. — Mouth-Parts, Orchesella ciucta. 



PLATE 4. 



Figs. 28-32. Sections nearly transverse to the mouth-parts, nunnbered in sequence, 



beginning near the moutli, and cut approximately in directions 



indicated by tlie numbered lines of Plate 1, Fig 3. Figs. 28-81, 



X 220; Fig. 32, X 116. 



Fig. 83. Transverse section through a secretory region of one of the larger 



cephalic glands. X 440. 

 Fig. 84. Transverse section of an evacuating duct of the same gland. X 440. 

 Fig. 35. Sagittal section of one of the pair of smaller cephalic glands. X 220. 



