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Photo#108884
Bourletiella hortensis? - Bourletiella hortensis

Bourletiella hortensis? - Bourletiella hortensis
Harvard, Worcester County, Massachusetts, USA
May 10, 2007
Size: .9mm

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Bourletiella hortensis? - Bourletiella hortensis Bourletiella hortensis? - Bourletiella hortensis Bourletiella hortensis? - Bourletiella hortensis

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The "small abdomen" of Bourletiella
This pictures illustrates that the abdomen of Symphypleona is typically divided in a "great abdomen", comprising the fused abdominal segments 1 to 4 (and sometimes 5, as in Dicyrtomidae), and the "small abdomen", comprising the abdominal segments 5 and 6 (or only 6).
In Bourletiella the small abdomen has 2 distinct segments: the genital segment (5th abdominal segment), bearing ventrally the genital opening, and the anal segment (6th abdominal segment), bearing terminally the anus.

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