THE PECAN CIGAR CASE-BEAREK. 



81 



111 tlie Bureau of Entomology and the U. S. National Museum there 

 are si)ecimens from McPhorson, Ala.; Victoria, Tex.; Pittsbure:, Pa.; 

 IIam})ton, X. II. ; Washington, D. C; Virginia; and New ^'ork. 



From these records of capture and injury, this insect seems to be 

 distributed througliout the Austroriparian faunal area of the United 

 States and may also 

 extend into the Caro- 

 linian and into the 

 lower edge of the 

 Alleghanian areas. 



FOOD PLANTS. 



The pecan cigar 

 case- bearer feeds 

 principally on nut- 

 bearing trees, and of 

 these it has been ob- 

 served feeding on 

 walnut, pecan, and 

 hickory. It has been 

 doubtfully recorded 

 on dogwood and 

 Prunus americana. 



CHABACTER OF IN- 

 JURY. 



Damage by the pe- 

 can cigar case-bearer 

 occurs during the 

 early spring, prin- 

 cipally to budde( 1 

 trees, and is due to 

 the feeding of the 

 larvse on the tender 

 buds and unfolding 

 leaves. Where this 

 insect is very abun- 

 dant it causes injury 

 in two ways. If the 

 buds are backward in opening, the larva^ leave the twigs where they 

 have liibernated, and crawling to the swelling buds attack them and 

 eat out the contents, so that the life is destnn^ed, and before the tree 

 canputoutitsfoliagethedormantbudsnuist (kneloj). Figure 23, taken 

 May 6, 1909, shows pecan twigs with buds destro3'ed b}' these larvie; 



Fig. 23.— Pecan twijrs with huds and yoiini,' leaves killed by pecan 

 cigar casc-bcaror ( Colcophora caryapfoluUa). (Original.; 



