108 



BULLETIN 411, U. S. DEPAETMEXT OF AGEICULTTJRE. 



IMPORTATIONS. 



The only importation of this species was received at the gipsy 

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

 ment contained nine males and nine females ahve 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 natm'ally climb trees in search of prey. (PL III.) The 

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

 of the tree but did not attempt to chmb. Wlien put upon the bark, 

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

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

 beetle would lose its footmg and fall. No climbmg 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. 



1909. 



Pair No. 



Feeding 

 record 

 started. 



Ceased 

 feeding. 



Sixth-stage cater- 

 pillars. 



Total. 



Mala- 

 eosoma 

 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 



155 



2710 



2711. . 



2712 



Average per pair 













1910. 



Pair No. 



Female 



emerged 



and 



record 

 started. 



Ceased 

 feeding 



Mala- 

 cosoma 

 ameri- 



cana, 

 fifth and 



sLxth 

 stages. 



Porthe- 



tria 

 dispar, 

 sixth 

 stage. 



Estig- 

 mene 

 acraea, 

 sixth 

 stage. 



Total. 



2709 



Mav 26 



23 



June 7 



May 24 



Aug. 12 



12 



5 



July 30 



65 



84 

 57 

 53 



166 



1 156 



2 140 

 125 



11 

 11 



1 

 3 



242 

 253 

 199 

 181 



219 



2710 



2711. . . 



2712 



Average per pair. . . 















1 Besides t 



wo pupss. 





2 Besi 



des one pu 



pa. 





