Xenylla grisea

Axelson, 1900

Xenylla grisea is a of (Collembola) in the Hypogastruridae, first described by Axelson in 1900. It is a small, soil-dwelling hexapod found across multiple geographic regions including the Azores, Andean regions, the Caribbean, and Atlantic islands. Laboratory studies have documented its reproductive and developmental timing under controlled conditions.

Xenylla grisea (8181643594) by Andy Murray. Used under a CC BY-SA 2.0 license.

Pronunciation

How to pronounce Xenylla grisea: //zɛnˈɪlə ˈɡrɪsiə//

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Identification

present: males and females can be distinguished by body length, color, and body shape. No occurs in this , so both sexes are routinely encountered in .

Images

Habitat

Soil-dwelling; specific microhabitat preferences not well documented beyond general association with soil and litter environments typical of Hypogastruridae springtails.

Distribution

Documented occurrences include: São Miguel (Azores), Andean regions, Antillean region and southern Florida, Ascension and St. Helena islands, and Caribbean mainland.

Diet

In laboratory culture, has been reared successfully on brown whole wheat flour. Natural diet in the wild is not documented.

Life Cycle

At room temperature (25–27°C), females begin laying after the fourth moult. Time from hatching to sexual maturity averages 12.6 days (range 10–15 days). Development involves multiple moults before reproductive maturity.

Ecological Role

As a soil-dwelling , likely contributes to soil nutrient cycling and decomposition processes, though specific ecological functions have not been studied.

Similar Taxa

Lepidocyrtus cyaneus f. cinereusStudied alongside X. grisea in the same laboratory investigation; both are small springtails reared on similar substrates, though belonging to different (Entomobryidae vs. Hypogastruridae)

More Details

Laboratory rearing

Successfully maintained in culture jars with a base of plaster of paris and charcoal, fed on brown whole wheat flour. This artificial rearing system has allowed detailed study of its reproductive .

Temperature-dependent development

Development rate is temperature-sensitive; the documented 12.6-day average maturation time at 25–27°C suggests faster development than the related Lepidocyrtus cyaneus f. cinereus, which required 16.8 days at 26.5°C.