BTELD WOKE RELEASE OE PAKASITES. 



27 



r r 



LBLE 



XV11 



Releast and paraaitiw 



i ,,/' ( uamhijioiii'ix cyanicepa 









•• v.." Parasite 



area. 



■ •!•.." Check 

 area. 



■«C." Check ' D." ares 

 area. across road. 



•■ i .." \ r e a 



KM) yards 

 from " 1>." 



T< 



.tal. 



Date. 



1 1 



K ? 



s 



00 



7 s 



— - 



z 



33 



- - 



= 7 



B 



o 



e 



A 



~- 



1 



£ 



39 



bo 



: — 



* 7 

 IS 



v 



1 



ft 



: 

 ft . 



P 



Ph 



0.55 



0) 



A 

 bo 



CO 



00 1 



--- 



ft . 



|s 



z '■ 



2 



- 



© 



a 

 p 



°1 



en ? 



- 



i 



si 



— - 

 E — 



Z 



2 



OS 



ft . 



.- — 

 f T. 

 g 



- 



a 



3 



to 



i 



1 Number .-1 sxagt - 

 parasitized. 



Percentage para- 

 sitized. 



"1 



i 

 CO 



300 



258 

 1,22 

 247 



Nun 



tized. 











ISO 



163 

 L25 



l (i 3 



Sept. 12 



120 o 

 Released 



0.0 



3 %• 





















Bept, Lfi 



Released 



i) 



Oct. 2 



95 o 



.0 



.0 



' 









218 







0.0 



V 



6 6.6 



(i 0.0 



Orl 6 



Oct. 10 



is:* 







I""' 



247 







0.0 



i) 0.0 





Table 



XVIII.- 



-Parasitism i 



/" Eurytoma 



////nJ- r// 



r///.s 















•■ \." Parasite 



area. 



•• 15. •• Cheek -C." ("beck 

 area. area. 



"D." Area 



across road. 



"E." A re a 

 100 yards 

 from "D." 



Total. 



Date. 



S3 



A 



- i 



■- 



! 



CO 



00 



- 



r? 



00 t 



- ' - 

 ■- 7 

 8 ~. 



|S 



E - 

 Z 



03 



u 



- — 



r 



- 



o 

 A 



o| 



CD 



x |$ 

 03 



- 



_- 

 *s 

 C S 



•- / 



, - 



— 1- 

 s - 



= - 



z 



ft . 



1.1 



— — 



(H 



A 

 "I 



/ ? 



00 



0) 

 b0_; 



7 S 



v- 



Z 



2 



03 



- . 



is 

 a -a 



flj 



Ph 



© 



A 



"4 



bo 



- 



0Q 



- ~ 



7 S 



VI 



fft 



Z 



2 



os 



ft 



is 



i' a 



Ch 



^H 



OSS 



'■ is 



- 

 bD 



03 

 +s 

 CO 



00 

 8J 



be 

 a • 



00 S3 



11 



S 03 



= ft 



z 



03 



(H 



- 

 ft . 



II 



03 

 to £ 



o 

 bO 

 S3 



<a 



bC 



- _: 



- - 

 i _ 



- Z 



il 

 = '- 



Eft 

 Z 



3 



2 

 10 

 



93 



- 



ft . 

 • — 







a « 



ft 





120 

 95 

 18L 



0.0 



2 2. 10 



ISO 



103 

 125 



3 

 



1 



LOG 

 .0 

 .80 











300 

 258 

 622 

 247 



1.0 



Bept. 12 





















o.; 



Oct. 2 









218 



.... 



2 



0.91 



96 



6 



.... 



6.25 



l.b 

 0.0 



Oct. 6 



Oct. 10 



1 



1 



247 







0.0 



III. Parasite Breeding Work. 

 Four new primary parasites of the boll weevil have been bred this 

 year and several definite cases of predaceous attack have been 

 observed. There are now known 11 primary hymenopteroiis para- 

 sites, 1 primary dipterous parasite, 2 acarid parasites (at least), 2 

 oleoptefous enemies, and 2 ant enemies which attack the weevfi 

 9t aJ in the cotton forms. They are as follows (insects which 

 attack the adult weevils are omitted from the consideration): 



PRIMARY PARASITES. 



Hymenoptera. 

 Chalcidoidea. 

 Torymidse, Monodontomerinse. 



1. Microdontoimrus nnthnnomi < wfd. (Texae . 



Eurytomidse. . . » 



2. EuryUma tylodermat is A>hm. (Mcxko, r.-xas, Louisiana). 



3. Bruchophagvxherrera kshm. (Mexico). 



Encyrtidae, Eupelminse. 



1. ('erambycobiusr,innir,,>s Ashm. (Louisiana, L« 



Pteromalidse, Pteromalinse. 



5. Caiolacas incertus A.shm. (Texas, Louisiana). 



