Thompson. —Anatomy of Mosquito. 
PLATE 13. 
Figures 3-12 are sections of the head of a female Culex, each representing 
an actual section schematized; 3-6 and 9-11 are from one specimen, 7-8 from 
a second, and 12 is from a third. Figures 13-15 are similar schematized sec¬ 
tions of the head of a female Anopheles. The figures are drawn to various 
scales. The median trachiole of the internal trachea is starred. 
Fig. 3. Through bases of mandible and maxilla. 
Fig. 4. Insertion of mandibular muscles; second section behind fig. 1. 
Fig. 5. Salivary pump and insertion of maxillo-labial muscles ; 9th section 
beyond fig. 1. Sections 10 in thickness. 
Fig. 6. “Heads” of the tentoria and origins of mandibular muscles; 13tli 
section beyond fig. 1. 
Fig. 7. Through posterior spurs of pharynx and the pharyngeo-esophageal 
valve ; specimen B. 
Fig. 8. Anterior border of optic ganglion ; specimen B. 
Fig. 9. Midbrain section of specimen A. 
Fig. 10. Origins of retractor maxillae muscles; 39th section beyond fig. 1. 
Fig. 11. Through posterior ends of tentoria and insertions of protractors of 
the maxillae; 41st section beyond fig. 1. Specimen A. 
Fig. 12. Region of bulbous portion of antlia ; specimen C. 
Fig. 13. Section of head of Anopheles; comparable in position to fig. 5. 
Fig. 14. Section of head of Anopheles ; comparable in position to fig. 11. 
Fig. 15. Section of head of Anopheles ; comparable in position to fig. 7. 
