. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. DELTOCEPHALUS CONFIGUKATUS UHL. 81 Wyoming, and Montana. At Tower City, N. Dak., it was reported in 1901 and 1905, evidently occurring in abundance in grasses, as collections included large numbers of both males and females. In New York it was stated by Van Duzee to be ''a common meadow insect from May to August, but in the year 1904 I did not find it in any numbers except at Hamburg, although I collected at a number of different points in that State. Probably, liowever, my collections were made a little too late
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. DELTOCEPHALUS CONFIGUKATUS UHL. 81 Wyoming, and Montana. At Tower City, N. Dak., it was reported in 1901 and 1905, evidently occurring in abundance in grasses, as collections included large numbers of both males and females. In New York it was stated by Van Duzee to be ''a common meadow insect from May to August, but in the year 1904 I did not find it in any numbers except at Hamburg, although I collected at a number of different points in that State. Probably, liowever, my collections were made a little too late in the summer to find it at its greatest abundance. In 1909 I found it quite common at Brooldngs, S, Dak., June 20 and 25, especially in wild grasses, and at Fargo, N. Dak., it was the most abundant species for this and the succeeding month in an old pasture of brome grass. It occurred at the Mammoth Hot Springs, Yel- lowstone Park, Wyo., July 9, on natiA^e grasses. It is one of the largest species of the genus Delto- cephalus and is easily recog- nized by the broad blunt head as well as by the pecul- iar structure of the genitalia. (See fig. 16.) The last ven- tral segment of the female ends in a narrow black proc- ess divided at the tip, and the male plates are large, broad, and obliquely truncate. The forewings are usually longer than the abdomen, but vary in length in different indi- viduals. The nymphs have a broad head, the front of wliich is rounded and marked with brownish bars. They are pale brown above, with three indistinct stripes and a row of dots just witliin the narrow light border on each side of the abdomen. The full-grown nymphs were first taken in Iowa early in May along with adults that had apparently just issued from the nymphal stage, and witliin two weeks the nymphs had all matured and adults were very abundant throughout June and a few occurred in early July. At the time the observations were made in 1906 the field in wliich they were made, and which wa
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