Intersegmental tergal glands Intersegmental sternal glands 
IX VIII VII VI V IV IX VIII VII VI V/ IV 
VIII VII VI V IV III VIII VII VI V IV III 
+ + 
r 
9 
9 
r 
+ 
r,c 
+ 
r,c 
9 
r,c 
+ 
r,c 
+ 
+ + + 
r 
+ + 
+ 
+ 
r 
