EXPLANATION OF PI. ATE V. 



Fig. I. — Scalpellum squamuliferum, Welt. Male, x 80. Stained borax carmine. 

 ,, 2. — 5. squamuliferum. Transverse section through the capitulum of the 



young male figured in pi. iv, fig. 6, x 250. Stained with iron haema- 



toxylin. 

 ,, 3. — S. squamuliferum. Transverse section through peduncle of the young 



male figured in pi. iv, fig. 6, x 250. Stain thionin eosin. 

 ,, 4. — 5. squamuliferum. The anterior portion of the pupa of a male, to 



show tissue elements. The anterior end is downward. 

 ,, 5. — 5. squamuliferum. Transverse section through peduncle of young 



hermaphrodite measuring 2-5 mm., x 250. Stained with iron 



haematoxylin. 

 „ 6. — 5. squamuliferum. Cement cell seen in transverse section through 



peduncle of a hermaphrodite 16 mm. long. Stained with iron 



haematoxylin. 



