LARVAL HABITS OF THE TIGER BEETLES. l83 



1900. PoNSELLE, A. — Contribution k I'etude des moenrs des Cicindeles. 



Feuille Natural, xxxi. pp. 67-68. 

 1885. ScHAUPP, F. G. — Larvse o£ Cicindel93. Bull. Brooklyn Ent. Soc. ii. 



p. 23. 

 1907. Shelford, R. — The Larva of Collyris. Trans. Ent. Soc. Lond. pt. i. 



1907, p. 83. 

 1904. Shull, Gt. H. — Place Constants for Aster prenanthoides. Bot. Gaz. 



vol. xxxviii. pp. 333-375. 

 1906. Sloane, Thomas G. — Studies in Australian Entomology, No. XIV. 



Proc. Linnean Soc- N. S. Wales, vol. xxxi. pp. 326-327. 

 1902. Tower, W. L. — Variation in the Ray Flowers o£ Chrysantliemxim 



Leucaniliemum at Yellow Springs, Green County, Ohio, with remarks 



on the Determination of Modes. Biometrika, vol. i. pp. 309-315. 

 1907. An Investigation o£ Evolution in Chrysomelid Beetles of the 



Genus Leptinotarsa. Carnegie Institution. Washington, D.C., 



No. 48. 



Place Variation, p. W. 



Habits and Instincts connected with Hibernation and Aestivatibn, p. 245. 

 Experimental Modification of Colour and Colour Patterns, p. 168, 

 1893. Verhoeff, C. — Vergleichende Untersuchungen uber die Abdominal- 



Segmente, insbesondere die Legeapparate der weil)lichen Coleoptera. 



Deutsch. Ent. Zeit. pp. 209-260, taf. 1, 2. 

 1897. Weed, C. M.— Life Histories of American Insects. New York, 1897. 



EXPLANATION OF THE PLATES. 



Plate 23. 



Figs. 1-S. The ovipositor of Cicindela purpurea. 



Fig. 1. Ventral view, x 4-5. Fig. 2. Side view. Fig. 3. Dorsal view. 



a. Ventral chitinized plate, b. Outer gonapophysis of the 9tb segment.. 

 c. Inner jointed gonapophysis of the 9th segment, d. Gonapophysis of the 8tK 

 segment. 



Figs. 4-13. The life-history of C. purpurea. 



Fig. 4. The e^^ in the ovipositor burrow, slightly reduced. 



5. The egg at laying, x 4"5. 



6. The egg just before hatching, x 4*o. 



7. The larva at hatching, x 4-5. 



8. The larva ast the end of about two weeks. X 4-5. 



9. The larva in the second instar. X 4-5. 



10. Side view of the larva at the beginning of the third i-nstar. X 4"5. 



11. Full-grown larva. X 4-5. 



12. Pupa. X 4-5. 



13. The burrow and the pupal cell. X 04. 



I. Labium, m. Mandible, vi.jy. Maxillary palp. o. Ocellus, h^ Hooks. 

 an. Antenna, pc. Pupal cavity. 



