Field and Laboratory

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In 1944 I began work on the hairstreaks of North America. Since that year, nine new records for the United States, and one new species, were found in the vicinity of Pharr, Hidalgo County, Texas. While collecting over the State, I have found thirty-three species, five subspecies, and two forms, representing five genera of hairstreaks. One new Texas record is reported in this paper, Mitoura siva (Edw.) Most of the information contained here was obtained at first hand; but the fine collection of Stallings and Turner, at Caldwell, Kansas, was checked for Texas specimens.

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