OF WASHINGTON. 7 



tion of the species of Calosoma, although the probabilities are 

 that the beetles winter as full-grown larvae in the ground. In 

 his opinion the Calosomas of the United States do not have 

 the climbing habit so well developed as do the European 

 species. 



Mr. Busck stated that in May, 1898, he packed up a num 

 ber of living adult specimens of Calosoma scrutator Fab., col 

 lected at the electric lights at the Capitol, and gave them as 

 a curiosity to Dr. Yngve Sjostedt who had been visiting in 

 the United States at the time. They were placed in a tin box 

 with a large nest of living half-grown Hyphantria larvae for 

 food and were shipped by express to Dr. Sjostedt's steamer in 

 New York. In a letter a month later Dr. Sjostedt wrote that 

 the great majority of the beetles had come over in perfect 

 condition and that he had exhibited them alive at the fol 

 lowing meeting of the Stockholm Entomological Society. 

 From this experience it was reasonable to infer that European 

 Calosomas could be introduced into the United States. 



Mr. Schwarz said that carabid larvae of various species had 

 been successfully reared on a diet of raw meat by the late 

 Prof. F. G. Schaupp, of Brooklyn, N. Y. Doctor Hopkins 

 stated that he had found Calosoma beetles of two species very 

 abundant high up in trees badly defoliated by what was sup 

 posed to be canker-worms, in Greenbriar County, W. Va. Mr. 

 Knab said that he had found adults of Calosoma calidum Fab. 

 undoubtedly hibernated individuals in drift and under 

 stones near Springfield, Mass., in the early spring. Mr. 

 Hunter spoke on the common occurrence of Calosoma scru 

 tator Fab. in the Texas cotton fields, where there are no trees 

 near. Mr. Titus said that he had collected Calosomas under 

 stones in Colorado, at altitudes of from 6,000 to 8,000 feet, 

 during December and January. Mr. Schwarz spoke on the 

 spread in North America of Carabus nemoralis Muell., a 

 European species which is npw quite common around Boston. 

 He believed that the introduction of large carabid beetles into 

 the United States is quite feasible. Doctor Howard said that 

 he had met with great conflict of evidence among the European 

 naturalists as to the hibernation of Calosoma, and stated that 



