THE GLAS8Y-WIJMGED SHARPSHOOTER. 49 



his orange grove, in Orange County, Fla. January 5, 1899, Mr. J. F. 

 Donnelly, of ]\Iount Dora, Fla., sent an adult of the species and stated 

 that they were sucking the juices of his oranges. The specimen sent 

 had been attacked and killed by Euthyrhy)i vines flortdanas Linn., 

 which accompanied it. Injur}- to cabbage, corn, cotton, and peas was 

 reported by Mr. J. P. Cooksey, Pin Hock, Fla., January 6, 1892, and 

 injur}' to peaches from the adult bugs by Mr. J. P. Lorenson, Salt 

 Lake City, Utah, September 12, 1898. Septem])er 26, 1904, Doctor 

 Chittenden obseryed the adults puncturing okra pods at Washington, 

 D. C. 



THYANTA CU8TATOR Fab. AND PROXYS PUNCTULATUS BeaUY. 



These insects were also frequently obseryed on cotton liolls, though 

 no injury could be directly attributed to them. The former species 

 was exceedingly destructiye to yarious field crops — corn, sorghum, 

 cowpeas, etc. — in north Texas in 1903. 



SHARPSHOOTERS. 



Although the first species to be discussed below is the one commonly 

 known as the "•sharpshooter" of cotton, we may well consider three 

 others, nearly related and with very similar habits. All four species 

 are found more or less on cotton, and would not be readily distin- 

 guished by the average planter. 



THE GLASSY-WINGED SHARPSHOOTER. 



{Homalodisca triquetrd Fah. Fig. 30.) 



Life Jiistory. — The adults pass the winter in rubbish, leaves, etc., 

 near the food plants. On January 11, 1905, they were found feeding 

 on yaupon {Ile.r dtcidua)^ reported by Mr. Sanborn as one of their 

 favorite food plants. On cold days they crawl down among the trash 

 and leaves. They begin to leave their hibernating quarters late in 

 March, our first record at College Station being March 24, 1904, but 

 are not common until two weeks later. On April 6, 1904, adults were 

 common along a small tributary near the Brazos River on hackberry 

 {(Jelt!>< missJ.ssl])p!('))sit<) and cottonwood, and still more numerous on 

 elm and willow. On April 14 they were exceedingly numerous on 

 elm and hackberry, the dropping of their exudation being very notice- 

 able; ])ut none were found copulating. At this time numerous jassid 

 nymphs were found upon these trees, but, as we were then unfamiliar 

 with the nymph of triqneti'a and were unable to rear any of them, the 

 species is uncertain. The occurrence at this time of these nymphs, 

 which if not the species under discussion, must certainly ha.ve been 

 nearly related to it, indicates, in any event, the possibility of oviposi- 

 tion in early April, although this is certainly notconunon. Numerous 

 observations were made each week, yet none were found mating imtil 



