Key to Monomorium males of the New World

AntWiki: The Ants --- Online

This key is based on: DuBois, M. B. 1986. A revision of the native New World species of the ant genus Monomorium (minimum group) (Hymenoptera: Formicidae). University of Kansas Science Bulletin. 53:65-119.

The following species are not included in this key: Monomorium compressum, Monomorium emarginatum, Monomorium inquilinum, Monomorium marjoriae, Monomorium pergandei, and Monomorium wheelerorum.

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1

  • Eighth sternite emargination lacking projecting setae . . . . . 2
  • Eighth sternite emargination with projecting setae; common along Atlantic coast from New Jersey to Florida . . . . . Monomorium viridum

2

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3

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  • Cuspis of volsella present; known only from type locality (Livingston Co., Michigan) . . . . . Monomorium talbotae

4

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  • Cuspis of volsella with 5 setae; occurs throughout central Mexico, Arizona, New Mexico, and parts of Texas . . . . . Monomorium cyaneum

5

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6

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  • Eighth sternite emargination 1/2 as deep as wide; occurs along California coast . . . . . Monomorium ergatogyna
  • Eighth sternite emargination as deep as wide; occurs in northern Florida . . . . . . . . . Monomorium trageri