362 ENTOMOLOGICAL NEWS. [Dec., '06 



so-called pupa stage, though a large proportion were still in 

 the first instar. 



June u, 1903, the first adults of the new brood were found 

 and most of the nymphs were ready to transform. The first 

 eggs were laid April 2, 1904, as far as observed in the field. 

 On April 23 a few nymphs in the second instar were observed. 

 Nymphs in all instars were secured April 28, but no eggs. On 

 May 14 nymphs in the second and fourth instars were observed 

 and hibernated adults were very scarce. The spring rains 

 caused a high mortality this season and further observations 

 are lacking. Prof. Webster (Bulletin 15, Bureau Entomology, 

 pg. 19) quotes Dr. Shimer as stating that the adult develops 

 57 to 60 days after the deposition of the eggs. Though the 

 above data are not conclusive, yet from the field observations 

 it is evident that the development from oviposition takes place 

 in at least 45 days and possibly less. A second generation 

 seriously damages sorghum and late planted Mexican June 

 corn in July and August. I have no recorded observations 

 concerning a third brood, but am quite certain that a third 

 generation is developed before hibernating for the winter. 



The habits and injury done by the bugs are quite variable, 

 making their control much more difficult than further north. 

 When the adults emerge from hibernation in March or April 

 they may fly directly to the young corn just appearing above 

 the ground. They are frequently observed flying or alighting 

 on horses at this season. Furthermore, they will often be found 

 in spots here and there over a large field of corn. In other 

 instances, however, they seem to remain mostly on oats and 

 wheat, so that when the latter are cut in June they migrate to 

 corn as further north. 



Upon the young corn from a half dozen to as many as thirty 

 will be found on a hill in which the plants are not three inches 

 high. In many cases replanting in spots is necessary. The 

 most serious injury is done by the adults of the next genera- 

 tion late in May or early June, when the corn is about knee or 

 waist-high. Having bred in the corn field and not migrating 

 to it, as a rule, as in the North, the bugs are very abundant 

 over the entire corn field. The usual methods of control prac- 



