Bui. 63, Part II, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate I. 



Work of Lixus musculus and Orthoris crotchii. 



Fig. 1. — Gall of />/.r».s' iiiuscKlufi and exit hole of adult on stem of Foli/f/oninii poDisj/Iranicum. 

 Fig. 2. — Gall of Li.rus in'iKculds and entrance hole (closed) of pyralld caterpillar on stem of 

 Polygonum. Fig. 3. — Pod of M( iitzcUit iiudd, showing two egg punctures of Orthoris crotchii. 

 Fig. 4. — Pod of Mentzelia opened, showing a cluster of Orthoris crotchii cells, and the cocoons 

 of Tetrastichus. Figs, o, 6. — Interior of pod of same, showing several cells of Orthoris crotchii. 

 Fig. 7. — An isolated cell of Orthoris crotchii, showing the manner in which the .seeds are 

 eaten. (Original.) 



