46 MISCELLANEOITS COTTON INSECTS. 



dou))t, theret'ore, as to the cause of this injury, which was quite con- 

 siderable in the counties mentioned and noticea))le elsewhere. 



That this is no new enemy of cotton is shown by the fact that 

 Glover in liis report on cotton insects in 1855" mentions and figures 

 it. Again, in his manuscript notes and plates, he states that it injures 

 the plant by piercing the leaves and young shoots.* It was next men- 

 tioned ])y Prof. F. M. Webster'' as injuring wheat in Indiana by attack- 

 ing the heads and causing them to wdther. In 181)3 Mallvgave a brief 

 description of the injury done to cotton, similar to that recently 

 observed.'' 



CaJocorls eJienopodll^ an allied species, has been observed to feed 

 on larvjv of the asparagus beetle in Europe, and Doctor Chittenden 

 states' that the present species is not uncommon in asparagus beds. 



There seems to be no feasible means of combating the adl^lt bugs; 

 but the nymphs would undoubtedly succumb to a spra}" of kerosene 

 emulsion or similar contact insecticide, which should be applied as soon 

 as they are observed to l)e numerous. By such an application during 

 July, when there are 1)ut a few here and there, serious injury by the 

 increased iuunl)ers late in the summer might be prevented. 



CORIZUS .PICTIPES Stal. 



Septeni])er 5, 1904, this species, which somewhat resembles the pre- 

 ceding, was found ver}' ahundant in all stages at Sherman, Tex., on a 

 species of Altha-a, affecting it much as the leaf-bug affected cotton. 

 From eggs which hatched Septembei- 5 adult bugs matured October T. 

 Later in October the species was found on cotton at Terrell, and 

 specimens taken on cotton were received from Cameron, La., Octo- 

 ber 1(». 



OTHER PLANT-BUGS. 



The black spots upon the bolls and the consequent shrinking and 

 softening are not alwa3\s due to Calocorh rapid^is Sa}', as several 

 other species have l)een noticed as producing the same injury, although 

 thev do not occur in such large numbers and the injurv is not so 

 general. 



LARGUS SUCCINCTl^S LillU. 



This species is frequently found on the bolls in late summer, 

 causing some injury. Adults were found common late in July, and 

 on the 28th a pair were confined on cowpeas. On August 6 two Oi^^ 



«1856: Kept. U. S. Comm. Patents f. 1855, Agriculture, p. 87, PI. VII, fig. 6. 

 ''1878: xManuseript notes from my journal— Cotton and ttie principal insects, 

 etc. — Washinjiton, pi. 11. 



(■1885: Rept. Comm. Agric. f. 1885, p. .317. 



fn893: Bui. 29, o. s.,Div. Ent., U. S. Dept. Agric, p. 31. 



'1898: Bui. 10, n. s., Div. Ent., U. 8. Dept. Agric, p. 57. 



