Category:A monograph of the Plecoptera or stoneflies of America north of Mexico
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Media in category "A monograph of the Plecoptera or stoneflies of America north of Mexico"
The following 52 files are in this category, out of 52 total.
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A monograph of the Plecoptera or stoneflies of America north of Mexico BHL6270960.jpg 1,987 × 3,356; 362 KB