56 



MISCELLANEOUS COTTON INSECTS. 



extend the entire length of the body; these stripes are often narrowly interrupted on 

 a line with the antenna*. Another pair of dark stripes originate behind the eyes, 

 and extend along the margin to the wing pads, where they divide and continue 

 slightly obli(]nely to the margin of the latter, appearing again as single stripes on the 

 abdomen. A transverse band runs in from the antennal sockets on each side. 

 Front with five brown stripes, the median and lateral ones narrow and definite, the 

 intermediate ones which arise on the vertex are bioad and interrupted l)y light arcs. 

 Legs pale. 



The species is entireh^ harniless to eotton, and, so far as we have 

 observed, and as nui}" be judged from the fact that no records of injury 

 by it have been pul)lished, it does not damage any culti\'ated crops. 



ONCOMETOPIA UNDATA Fab. 



(Fig. 32.) 



The life history of this sharpshooter also seems to closely resemble 

 those of the preceding- species. The adults emerge from hibernation 

 late in Marcli. our tirst record being on the 22d. At this season and 



throughout the summer they 

 are particularly fond of redl)ud 

 ( Ccrets canadensis) and are lilso 

 common on elm. The tirst eggs 

 v/ere laid in continement on 

 cotton at Terrell May 5, and 

 the tirst observation on adults 

 mating in the field was made 

 on May 9. Three more lots of 

 eggs were laid May 11, the de- 

 position being much like that 

 of (>. lateralis.- These eggs 

 hatched in eight and ten da3's. 

 Those which hatched the 13th 

 molted on the 26th and again 

 on June 10. On June 30 all 

 were dead, the wing pads just appearing on the larger ones. On 

 July 2 Mr. Lewis observed in the cotton field numbers of this species, 

 which, judging from their fresh, bright colors, had evidently just 

 become mature A few were copulating. Kggs were laid July 4 l)y 

 females confined on cotton. The eggs were laid, as a rule, on the 

 under side of the leaves, the single exception ))eing laid on the out- 

 side of the involucre, but not on the square. In the cage they were 

 observed feeding on the leaves and stems of cotton, but never were 

 seen resting on the squares. These eggs hatched eluly 10 and all the 

 nymphs were dead I)y the 15th. By August 15 nymphs were found 

 in the field with wing pads forming. On September 5 three adidts 

 were inclosed over a cotton limb, and on the 12th young nymphs were 



Fig. •i2.—0ncometopia ntidtita: adult at left, nymph at 

 right— greatly enlarged (author's illustration). 



