184 Lli'E-HlSTORIES OF THE TIGER BEETLeS. 



Plate 24. 



Figs. 14 & 15. An appendage of C. puiyurea- 



fig. i4. Leg within the pitpftl skin, showing the wrinkling of the fenlur and the latr'ge 

 telstles arranged so As, to assist iil the removal of the exuvium. X 4'6. 



e. Extensor tibiae. /. Flexor tlbi*. g. Flexor femoris. h. Extensor femofis. 

 15. Femur extended, showing an adult length, x 4"5, 



Fig. 16. Colour pattern of the head and pfonotum of C.formosa generosct. 



17. The btlrrow of C. hybrida, modified after Lesne. 



Aj Diagramtoatie section ; B. Front Tiew. 



18. The burrow and pupal cell of C. purpurea limbdlisi The clear space I'epresents the 



pupal cell and the faintly stippled pal't the old burrOAA^ X 0'5, 



19. Tiie burrow and pitpal cell of C. Ippida. The flmnel which is sometimes formed by 



the action of gravitj'' on the dry sand is indicated. X 0'5; 



20. The two types of pupal cell toade by C. inmctuluta. k 0"5i 



21. The pupal cell of C. scUteltaris, K 0-5. 



Plate 25. 



Pig. 22. A photograph of thfe head of C. formosa generosa in position at the mtiuth of the! 

 burrow. The pile of sand at the left is that thrown up by the animal. 



23. A view of the same taken at an aligle of 90 degrees to the direction of the former 



line of vision. 



24. Photograph of the burrow opened sO as to shovv A vertical section of both burrow 



and pit. (Photographs by V. E. S.) 



Plate 26. 



This plate skows the distribution Of the bristles on the dorsal side of the lai'val head and 

 prothoraxi The figures of the different stages and different species are all shoAvn the same 

 size to facilitate comparisoii. 



Figs. 25-27. Represent respectively the three stages of the larva of C. purpurea. 



28-30. Represent respectively the first, second, and third stages of C. sexguttata. 



31-33. C. punctidata. 



34-30. C. repandd. 



S7-39. C. 12-guUatd. 



40-42. C. generosa, 



43-45. C. tranqueharicA, 



46-48. C. scutellaris. 



49-51. C. lepida. 



.02-54. C. Mriicollis. 



55 & 5G. C. cuprascenSi 



57 & 58. Show the principal linfes bf bristles oh tlie liead and prcitiiotax, 



A, B, C, D, E, F are the longitudinal lines ; 1, 2, 3, 4, 5, 6, 7, 8, 9, lO are 

 the cross lines. Other letteting is only for convenience in the descriptions 

 of the distributiot. The most constant bristles are indicated in figs. 57 and 58 

 by the star^. 



