THE GENUS CALOSOMA. 43 



Only one of the larvae in Table 8 lived to pupate, namely, 2778-H. 

 One escaped and the others died after they had become full grown . 



The active feeding period of the larvae was from 22 to 33 days, or an 

 average of 28. The average number of .aill-grown caterpillars re- 

 quired for the completion of their larval stages was 16, and according 

 to the data obtained they have approximately th^. same capacity as 

 those of inquisitor „ 



HABITS OF LARVA. 



Owing to lack of material no experiments, such as were conducted 

 with C. calidum, C. chinense, and others have been tried to ascertain 

 whether the larvae of this species are terrestrial or arboreal in their 

 habits of seeking prey. 



THE PUPA. 



One female pupa measured 16.5 mm. long and 7.5 mm. wide. No 

 male pupae were measured. 



The one incomplete pupal record secured was from a larva which 

 hatched June 9, 1910, and ceased feeding July 1. On July 14 the 

 pupa was found in a cavity at the bottom of the jar, where it had 

 probably remained eight or nine days, and would have issued in from 

 three to five days more. This pupa was preserved in alcohol, so no 

 adult was secured. 



BIBLIOGRAPHY. 



1848. LeConte, J. L. A descriptive catalogue of the geodephagous Coleoptera in- 

 habiting the United States east of the Rocky Mountains. In Ann. Lye. Nat. 

 Hist. N. Y., v. 4, p. 173-474, pi. 2. 



Page 446. The original description of Calosoma wilcoxi Lee. 



1863. LeConte, J. L. Notes on the species of Calosoma inhabiting the United States . 

 In Proc. Acad. Nat. Sci. Phila. f. 1862, v. 14, p. 52-53. 



Synoptic table dividing the various species into groups. 



1878. Riley, C. V. Ground beetles. In 1st Rpt. U. S. Ent. Com. f. 1877, p. 313-314, 

 fig. 45-47. 

 Feeds on the Rocky Mountain locust. 



1878. LeConte, J. L. Description of a new species of Calosoma. In Bui. Brooklyn 

 Ent. Soc, v. 1, no. 8, p. 61-66. 



Synoptic table of Calosoma. 



1882. Bell, J. T. Entomological papers. In 12th Ann. Rpt. Ent. Soc. Ontario f. 



1881, p. 27-28. 



Page 28. Note on collection on shore of West Lake, Prince Edward County, June 12; 13 specimens 

 taken and 24 on July 1 in another locality. 



1883. Riley, C. V. The army worm. In 3rd Rpt. U. S. Ent. Com., p. 89-156, ills. 

 Page 125. Note to the effect that this species feeds upon the army worm. 



1894. Harrington, W. H. Annual address of the President. In 24th Ann. Rpt. 

 Ent. Soc. Ontario f . 1893, p. 17-31, fig. 9-17. 

 Page 24. Beetle feeds on cankerworms and is a good climber. 



1894. Leng, C. W., and Beutenmuller, W. Preliminary hand-book of the Coleoptera 

 of North Eastern America. In Jour. N. Y. Ent. Soc, v. 2, no. 3, p. 133-141, 

 pi. 3. 

 Page 141. Classification and brief description. 

 1898. Burgess, A. F. Notes on predaceous beetles, 1897. In 45th Ann. Rpt. Mass. 

 State Bd. Agr. f. 1897, p. 402-411. 

 Page 408. Brief notes on collections and habits'. 



