' • Scolytid structures 



1 Xyloterus sp. antenna, x 110 



2 Xyloterus 1 in e at u s Kirby, right antenna, x 1 10 



3 Xyloterus sp., inner aspect of flattened segments of proventriculus. 



x i io 



\ Xyloterus politus Say, antenna, x tio 



5 Xyloterus politus Say, inner aspect of flattened segments of 

 proventriculus. x i io 



8oo 



