108 



BULLETIN 417, U. S. DEPARTMENT OE AGRICULTURE. 



IMPORTATIONS. 



The only importation of this species was received at the gipsy- 

 moth parasite laboratory June 1, 1909, from Miss Ruhl. The ship- 

 ment contained nine males and nine females alive and three males 

 and one female dead. Requests were made for Miss Ruhl to collect 

 more and forward them but it seemed impossible for her corps of 

 collectors to find them owing to the scarcity of the species in central 

 and southern Europe. 



HABITS OF ADULTS. 



June 29, 1911, one female was tested to ascertain if adults of this 

 species naturally climb trees in search of prey. (PL III.) The 

 beetle when left inside the circle crawled about and up to the base 

 of the tree but did not attempt to climb. When put upon the bark, 

 head upward, it would turn around very quickly and climb down- 

 ward to the ground. When placed upon the tree near the top, the 

 beetle would lose its footing and fall. No climbing experiments 

 were conducted with the larvae. 



This species is evidently terrestrial in habit. 



FOOD CONSUMED BY ADULTS. 



Feeding records were kept daily of a series of pairs of beetles 

 received from Europe June 1, 1909, and these records were extended 

 over two years, 1909 and 1910, as shown in Table 25. 



Table 25. — Feeding records of four pairs of Calosoma auropunctatum, 1909-1910. 



Pair No. 



Feeding 

 record 

 started. 



Ceased 

 feeding. 



Sixth-stage cater- 

 pillars. 



Total. 



Mala- 

 cosoma 

 ameri- 



cana. 



Porthe- 



tria 

 dispar. 



2709 



June 2 

 2 

 2 

 3 



July 16 

 19 



Aug. 16 

 9 



81 

 85 

 95 

 115 



47 

 48 

 67 

 80 



128 

 133 

 162 

 195 



2710 



2711 



2712 





155 













1910. 



Pair No. 



Female 

 emerged 



and 

 record 

 started. 



Ceased 

 feeding 



Mala- 

 cosoma 

 ameri- 



cana, 

 fifth and 



sixth 

 stages. 



Porthe- 



tria 

 dispar, 

 sixth 

 stage. 



Estig- 



rnene 



acraea, 



sixth 



stage. 



Total. 



2709 



May 26 



23 



June 7 



May 24 



Aug. 12 



12 



5 



July 30 



65 

 84 

 57 

 53 



166 

 i 156 

 2 140 



125 



11 



11 



1 



3 



242 

 253 

 199 

 181 



2710. 



2711... 



2712 





219 















1 Besides two pupae. 



2 Besides one pupa. 



