STRUCTUEE AND BIOLOGY OF SCHIZONEURA LANIGERA. 699 
Glutinous rods. w. Wall of the ovarian chamber, w. c. Wax-gland 
cells, w.f. Wall of clypeus. w. gl. Wax-gland, w. h. Wall of head; w. s. 
Wax-sac. w. s'. Solidified contents of wax-sac. x. Cells described in 
text. y. c. Large cells with coarse granular contents. 
PLATE 38. 
Fig. 1. — Apterous viviparous $ , ventral. X 45. 
Fig. 2. — Apterous viviparous $ , dorsal. X 45. 2 B. Wax-glands 
showing integumental facettes. 2 c. Eyes showing tubercles. 
Fig. 3. — Head, anterior portion (frons), showing endoskeleton as seen 
from dorsal or anterior aspect. X 375. 
Fig. 4. — Appendages : (a) Leg 1 ; (b) leg 2 ; (c) leg 3. X 85. (d) 
antenna (right) ventral side. X 110. 
Fig. 5. — Apterous viviparous $ , dissection from dorsal surface showing 
distribution of internal organs ; the dorsal integument, dorsal longitu- 
dinal muscles and tracheal system removed. X 85. 
PLATE 39. 
Figs. 6-21. — Series of transverse sections through the head, being at 
right angles to its longer axis, showing relationship of endoskeleton, 
pharynx, buccal appendages and musculature. X 250. 
Fig. 22. —Longitudinal section through side of the head. X 135. 
Fig. 23. — Longitudinal section through head, passing through the 
end of die transverse bar. X 135. 
Fig. 24.— Longitudinal section through head and thorax, almost 
median. X 235. 
PLATE 40. 
Figs. 25-32. — Series of vertical sections through head, showing rela- 
tion of parts of endoskeleton, buccal appendages and musculature. 
X 200. 
Fig. 33. — Vertical section throiigh head showing salivary pump, etc. 
X 375. 
Fig. 34. — Transverse section thi-ough thorax showing retracted pro- 
boscis. X 200. 
PLATE 41. 
Fig. 35. — Apterous viviparous ? , internal organs from right side, 
slightly schematised. Drawing made from dissections and serial sec- 
tions. X 100. 
