Biology of H. cuuiaharina var. punctata 523 



Larva to Nymph. 



Observer 

 Nuttall 



Stockman 



Date when larvae 



No. gorged on host 



1 26. XII. 1905 



2 1. I. 1906 

 53 30. VII. 1907 

 82 30. VIII. 1907 

 33 30. vai. 1907 



Nymph to Adult. 



Date when nymphs 

 Observer No. gorged on' host 



Nuttall 1 10.viii.1905 



2 8. XII. 1903 



3 1. I. 1906 



4 28. III. 1906 



Date wlien 



nymphs emerged 



Time required 

 for meta- 

 morphosis Tempera- 



8. V. 

 2. VI. 



15. 

 29. 

 30. 



III. 



IV. 

 IV. 



1906 

 1906 

 1908 

 1908 

 1908 



(days) 

 159 

 153 

 197 

 242 

 243 

 14 



ture 



10° C. 



10° c. 



Date when 

 adults emerged 



28. VIII. 1905 



Time required 

 for meta- 

 morphosis Tempera 

 (days) ture 



Remarks 

 Host: hedgehog. 



11 11 



Hihernatiou at outside tem- 

 perature. 



The shortest time observed ; 

 the average time stated to 

 be 16-29 days. 



Stockman 26 27. ix. 1907 23. vii. 1908 



27 30. III. 1908 



Remarks 

 18 At room temp., Host: hedgehog, 

 then at 30° C. 

 duringlast3days 



13. I. 1906 36 — Host: dog. 



17. IV. 1906 107 9°C. Host: hedgehog. 



14. IV. 1906 17-26 At room temp., ,, ,, 



then at 30° C. 

 during last 14 days 

 229 — Hibernation at outside temp., 



a number survived winter 

 but died without moulting. 



15. IV. 1908 15 — 



— 7 — The shortest time observed. 



Longevity of unfed H. cinnabarina var. punctata. 



The following protocols include Stockman's observations as well as my own, the latter 

 being but few : 



Larvae. 



1 Eecord since added. 



