THE GENUS CALOSOMA. 25 



Third-stage larvae were kept in the experiment from July 1 to July 

 11, when the last died. They were placed upon the trunk of the tree 

 many times but climbed up very little before falling. One specimen 

 crawled as much as 1 foot down the trunk from where it was placed 

 before falling and this was the best record of progress during the 

 experiment. 



The larvaB in the three stages were kept under observation in the 

 experiment from June 24 to July 11 without any indications of their 

 having reached the food cage at the top of the tree. It was necessary 

 to supply the larvae with food on the ground in order to keep them 

 from starving. All the data secured on the habits of the larvae would 

 indicate that under natural conditions they climb very little if at all. 

 In this respect they possess habits very similar to those of C. calidum. 



BIBLIOGRAPHY. 



1823. Say, Thomas. Descriptions of coleopterous insects collected in the late 

 expedition to the Rocky Mountains. In Jour. Acad. Nat. Sci. Phila., ser. 1, 

 v. 3, pt. 1, p. 139-216. 

 Page 149. Original description of the species in comparison with Carabus sylvosus Say. 



1831. DeJean, M. le Comte. Species General des Coleopteres, de la Collection 

 de M. le Comte De Jean, v. 5, 883 p. Paris. 

 Page 568. Description of Calosoma longipenne Dej. and note to the effect that it is Carabus 

 externus Say. 



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 (445-446). 



1877. Popenoe, E. A. A list of Kansas Coleoptera. In Trans. Kans. Acad. Sci. 



f. 1876, v. 5, p. 21-40. 

 Page 22. Occurs in "Western Kansas." 



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



fig. 45^7. 

 Page 314. Feeds on 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, 1878. 

 Page 64, 65. Synoptic table of Calosoma. 



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

 Page 125, pi. 1, fig. 8. Feeds on the army worm. The larva? were found in remarkable abundance 

 . at Huntsville, Ala., by L. O. Howard under stones and logs; devours worms that creep in for shelter 

 during the day. 



1890. Bruner, L. Insects Injurious to Young Trees on Tree Claims. Univ. Nebr. 

 Bui. 14 (Bui. Agr. Expt. Sta. Nebr., v. 3, art. 2), p. 83-149, 98 rig. 1890. 

 Page 117. Note of this species and C. lugubre being attracted to lights and their feeding upon 

 May-beetles. 



CALOSOMA MACRUM Lee. 



ORIGINAL DESCRIPTION. 



Elongated, black, shining, with front part of head scarcely punctate, with thorax 

 one-half shorter than broad, narrowed towards the front, sides- rounded, somewhat 

 more broadly reflexed on the posterior, purplish, with truncate base, broadly marked 

 on both sides; elytra scarcely broader than thorax, purplish margined, almost obso- 

 letely striated, and punctures marked in triple series, thickly punctate here and there 

 in front of the middle. Length 1.05 inches. 



DISTRIBUTION. 



J. L. LeConte described this species in 1853. 1 It occurs in Louisiana 

 and Texas and a single specimen is present in the collection of the 

 California Agricultural Experiment Station labeled "Md." 



1 LeConte, J. L. Notes on the classification of the Carabidse of the United States. In Trans. Arner. 

 Phil. Soc, v. 10, n. s., pt. 3, art. 27, p. 364-403 (p. 400), 1853. 



