16 BULLETIN 417, U. S. DEPAETMEISTT OF AGRICULTURE. 



mosquito wire netting about 4 inches in diameter. These should be 

 sunk in the ground from 10 to 12 inches and the top should be closed 

 with a wooden plug. The large larvae can be placed in these cages, 

 and if suppHed with food will remain there and burrow into the 

 ground when ready to pupate. Care should be taken to have the 

 earth in these cages firm, but not too compact. In cases where it is 

 loose the larvse will not be able to form a satisfactory cavity in 

 which to pupate and the insect will die before emerging as an adult. 

 Many of the details in rearing Calosoma beetles must be learned from 

 experience, but the general directions given above will serve to aid 

 anyone desiring to carry on this interesting work. 



CLASSIFICATION OF CALOSOMA. 



The following table has been prepared for the separation of the 

 species of Calosoma occurring in the United States. It consists 

 simply of a revision of a similar table published by LeConto ^ in 

 1878, with a few changes and additions to include sycopJianta L., 

 inquisitor L., reticulatum Fab., and auropundatum Payk., imported 

 from Europe, and chinense Earby and maximowiczi Mor., secured 

 from Japan. AH of these species have been hberated in New Eng- 

 land except auropunctatum Payk. and maximowiczi Mor. The former 

 species has been studied at the laboratory, but not enough speci- 

 mens were received for Hberation. Only two females of the latter 

 species were received from Japan, and as the classification is based on 

 the characters of the male tliis species is added at the end of the table. 



C. carhonatum Lee. is considered a synonym of C. peregrinator 

 Guer. ; morrisonii Horn, prominens Lee, parviceps Casey, and tris- 

 toides Fall have been added to those treated by LeConte, as they 

 are apparently good species, the writers having had an opportunity 

 to study specimens. A male of the last species was presented to 

 the junior writer by Mr. H. W. Wenzel, of Philadelpliia, as coming 

 from the Ricksecker collection. One specimen of C. dietzii Schaf.^ 

 was also seen in Mr. Wenzel' s collection and is evidently a good 

 species, but could not be included in the table as the description 

 does not give the characters of the male tarsi. 



Col. Thos. L. Casey,^ * in 1897, described the following species of 

 Calosoma: Sponsa, marginalis, parviceps, monticola, and arcuata. 

 In some cases these species were described from one or a very few 

 specimens, and the types are held in his private collection. No 

 other specimens of these species have been secured for study except 

 C parviceps. Some unidentified examples of this species were 

 found in the collection at the U. S. National Museum. It has, there- 

 fore, been placed in the following table, but it has not been thought 

 best to include the others on account of the small amount of material 

 available. 



1 LeConte, J. L. Description of a new species of Calosoma. In Bull. Brooklyn Ent. Soc, v. 1, no. 8, 

 pp. 61-66, 1878. 



2Schaeffer, Charles. New genera and species of Coleoptera. /nJour. N. Y. Ent. Soc, v. 12, no. 4, pp. 

 197-236, 1904. 



3 Casey, T. L. Coleopterological notices. In Ann. N. Y. Acad. Sci., v. 9, pp. 285-683, 1896-1897. 



< It might be added that Colonel Casey in the paper cited above also p'-oposed several names of sub- 

 species represented in his collection. These were C. stellata, a Lake Superior form of calidum; expansa, 

 another form of the same species from Iowa; and laticollis, a third from Las Vegas, N. Mex. A form of 

 sayi from Norfolk, Va., he considers as virginica, one oifrigidum from Indiana as levettei, and one of obs> 

 ZefMTW from New Nexico as microsticta. He also states that "pimeliodes Walk., zimmermanni hec. , and 

 striatula Lee., are distinct species and should not be considered subspecies of luxata." 



