. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 102 LEAFHOPPERS AFFECTING CEREALS, ETC. The species was reportcMl from Sharonville, Ohio, by Mr. L. E. Shojihercl, June 17, 1910, witli the statement that "it attacked sec- ond crop of alfalfa and it is turning yellow from the ; These various records show a ready adaptability to the alfalfa, and indicate that the species must ])e reckoned with in the growing of this crop. THE NYMPIIAT. STAGES. The nymphs are light green, often with a yellowish tinge, and are found usualh' upon the underside of th
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 102 LEAFHOPPERS AFFECTING CEREALS, ETC. The species was reportcMl from Sharonville, Ohio, by Mr. L. E. Shojihercl, June 17, 1910, witli the statement that "it attacked sec- ond crop of alfalfa and it is turning yellow from the ; These various records show a ready adaptability to the alfalfa, and indicate that the species must ])e reckoned with in the growing of this crop. THE NYMPIIAT. STAGES. The nymphs are light green, often with a yellowish tinge, and are found usualh' upon the underside of the leaves of the plants which they infest, clustered commonly beside the midribs and main ribs of the leaf, where they suck the juices of the Fig. 28.—Empoasca mall: Five njnnplial stages. All enlarged. (After R. L. Webster.) The stages (see fig. 28) are described by Mr. R. L. Webster, as follows: Stage I. Length 1 mm. (average of 10 specimens). Head, thorax, abdomen, and legs pale v/hen first born. After the young hopper has taken some food into the body, the abdomen takes on a yellow color. The eyes are dull reddish. Two rows of six spines are on either side of the meson; one dorso-laterad, one ventro-laterad, in position; one spine in a row to tlie segment. Spines small, pale. Caudal border of metathorax blunt in outline. Stage II. Length mm. (average of 10 specimens). Head, thorax, abdomen, and legs pale green; eyes dull reddish, antenna, seg- ments I and II pale, remainder dusky. Caudal border of metathorax sharp in outline. Stage III. Length mm. (average of 10 specimens). General color pale yellow, orange on dorsum oi abdomen. Eyes dull reddish. The wing pads now appear quite distinc-tly and reach to the caudal border of the first abdominal segment. Stage IV. Length mm. (average of 10 specimens). Head and thorax pale; abdomen pale yellow; eyes dull brownish. The wing pads now extend to the caudal extremity of the second abdominal Please no
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