338 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



on a single plant, which is cither consumed or so injured that it 

 shrivels and dies. The larva, shown in the illustration, measures 

 when full grown about one-third of an inch in length. The 

 general color is nearly uniform dark olive brown, the conspicuous 

 piliferous tubercles being pale yellow, and the head and portions 

 of the legs black. The eggs arc dull brownish gray, and the 

 surface, as seen through a lens, is covered with septagonal and 

 hexagonal areas." * 



FIG. 242. The larger beet leaf-beetle (Monoxia pimcticollis Say): a, female 

 beetle; b, eggs; c, d, larvae from above and side; cf, claw of male; 9, 

 claw of female all much enlarged. (After Chittenden, U. S. Dept, Agr.) 



Control. Paris green diluted with flour and dusted over the 

 foliage has effectively controlled the pest, and probably any 

 thorough application of any arsenical either wet or dry would 

 be effective. Professor C. P. Gillette f has observed that the beetles 

 accumulate on the " mother " beets early in the spring, so that 

 if a few beets were left in the ground over winter they might 

 serve as trap plants for the protection of the younger plants in 



* Quoted from F. H. Chittenden, Bulletin 43, Bureau Ent., U. S. Dept- 

 Agr., p. 10. 



t C. P. Gillette, 24th Report Colo. Agr. Exp. Sta. (1902), pp. 108-111. 



