90 BULLETIN 417, IT. S. DEPARTMENT OF AGRICULTURE. 



LARVAL RECORDS. 



Many larvae were reared in jelly glasses during 1913 and 1914 by 

 Mr. D. J. Caffrey at the Koehler, N. Mex. laboratory, and both, 

 larvae and pupae of H. oliviae were consumed by them. Upon ap- 

 proaching maturity they were transferred to cages for pupation. 

 Larvae hatching June 10 and 16, respectively, remained active and 

 fed until about July 2 to 10 before entering the ground for pupation. 

 More Hemileuca larvae are ordinarily destroyed at this season by each 

 Calosoma larva when they are smaller than when the caterpillars are 

 approaching maturity. 



The average time required to pass the first larval stage was 6 days; 

 for the second, 6, and for the third to date ceased feeding, 8. Addi- 

 tional to this, from 3 to 6 days are passed in the prepupal stage, thus 

 totaling 20 to 26 days in the larval stages to period of pupation. The 

 larva in the last few days makes an oblong-oval cell in the earth 

 where the pupal stage is passed. 



PUPA. 



Two rather undersized specimens reared at Koehler, N. Mex., meas- 

 ured 15 mm. long and 7 mm. wide for the male and 18 mm. long and 

 8 mm. wide for the female. The head is folded back under the thorax, 

 and wings folded over ventral side. The first five abdominal segments 

 are clothed with very short hairs dors ally, dorsal surface of remaining 

 segments smooth. Color, creamy-white. 



Seven of the larvae bred in New Mexico in 1914 went through the 

 pupal stage and emerged as adults. From 3 to 6 days were passed 

 in the prepupal stage and about 12 in the pupal. These larvae like 

 other species of the genus pupate in cavities in the earth. 



BIBLIOGRAPHY. 



1823. Say, Thomas. Descriptions of Coleopterous insects collected in the Expedi- 

 tion to the Rocky Mountains. Journ. Acad. Nat. Sci. Phila. T. 3, p. 149. 



Original description of Calosoma obsoletum. Specimens collected near the Rocky Mountains, also 

 inhabits Arkansas. 



1826. Dejean, M. le Comte. Species general des Coleopteres de la collection de M. 

 le Comte Dejean, T. II, p. 96. 

 Description of C. luxatum which Dr. Le Conte later threw into synonymy with obsoletum Say. 



1877. Popenoe, E. A. A list of Kansas Coleoptera. Trans. Kans. Acad. Sci., vol. 5, 

 p. 22. 

 Page 22. " Topeka and Lawrence." 



CALOSOMA SEMILAEVE Lee. 



ORIGINAL DESCRIPTION. 



Black, without luster, face intricately punctate, with thorax intricately punctate, 

 more heavily back of the middle; much wider than long, with sides quite rounded, 

 margin somewhat reflex ed at the base no less than at the apex, marked with two 

 indentations on each side, with elytra finely punctate in series, punctures large on the 

 anterior, interstices with imbricated grooves up to the middle. 



Length 0.85. Single specimen, San Jose, Cal. I have found elytra of another 

 at San Diego, Cal. 



This species was described by Dr. Le Conte in 1851/ his type speci- 

 men being taken in San Jose, Cal. Collection data on the species in 



i Le Conte, J. L. Description of new species of Coleoptera from California. In Ann. Lye. Nat. Hist. 

 N. Y. f . 1851, v. 5, p. 125-216, 1852. 



