46 C. SASAKI. 



Fig. 7 Top-shaped body. a. ^Chitinous disc. I. Bright reddish 

 yellow disc. c. Pointed chitinous tube, y . 



Fig. 8. Dorsal view of pupa, 35 days old, a. Simple eyes, -j . 



Fig. 9. A^entral veiw of ditto, a. Maxillary palp.^ft. Labrum. f . 



Fig. 10. Tyroglyphus sp. ? ^. 



Fig. 11. Eggs of Tyroglyphus. ^ . 



Fig. 12. Breakages on puparium. ah. Transverse breakage, cd. 

 Longitudinal breakage. 1,2,3-12. Xuniber of segments, f. 



Fig. 13. Puparium with two broken pieces a and h. \. 



Fig. 14. Section of puparium witli contained pupa. a, a'. Two 

 points where the respiratory tubes (e) stick out the fifth 

 segment, h, V. Two points where the temporary air bladder 

 touches the puparium. c. Pupa. d. Puparium. |.. 



Fig. 15. Top view of the head of pupa. a. Oval spacs. h. Com- 

 pound eye. 7. 



Fig. 16. Longitudinal section of the head of pupa through the space 

 between compound eyes. a, a'. Dark- marginal lines. 

 h. Seta3. c. Central transverse" line. d. Basal joint of 

 antennae, y . 



Fig. 17. Manner of hatching out of the perfect fly. a, a'. Empty 

 puparium. h. Fly getting out of it. c, c'. Newly-hatched 

 fly fully expanding its air bladder on the head. d. Fly on 

 the ground. ^. Surface of the ground. \. 



