Cylindroiulus

Verhoeff, 1894

Cylindroiulus is a of cylindrical in the Julidae, established by Verhoeff in 1894. in this genus are characterized by their smooth, rounded bodies and are primarily distributed across Europe. The genus includes notable species such as Cylindroiulus punctatus, which has been sequenced for genomic studies, and Cylindroiulus nitidus, which has been studied for its life-history dynamics in woodland . Members are typically found in forest floor environments, including decaying wood and soil.

Cylindroiulus punctatus by (c) Joss Carr, some rights reserved (CC BY), uploaded by Joss Carr. Used under a CC-BY license.

Cylindroiulus punctatus by (c) Alexis Tinker-Tsavalas, some rights reserved (CC BY), uploaded by Alexis Tinker-Tsavalas. Used under a CC-BY license.

Pronunciation

How to pronounce Cylindroiulus: //sɪˌlɪndroʊˈaɪjʊləs//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Julid with cylindrical, non-flattened bodies. -level identification requires examination of male and other genitalic structures. has been used to confirm species identity in at least one case (C. vulnerarius).

Images

Habitat

Deciduous woodland, forest floor environments, decaying logs, and soil. At least one (C. nitidus) occupies deciduous woods in Derbyshire, England. Vertical distribution in soil profile varies seasonally with temperature and moisture conditions.

Distribution

Europe, including England, Poland, and Germany. Specific records exist for Derbyshire (England), Poland (new record for C. vulnerarius), and Germany (comparative material for C. nitidus).

Seasonality

present year-round with peak abundance in spring and autumn. Juveniles recruited in summer. Surface activity correlated with temperature and moisture conditions.

Life Cycle

Post-embryonic development proceeds through successive . Males mature in approximately three years, females in four years. Males survive four to five years after maturation; females survive three years after maturation. No intercalary or other modified post-imaginal male stages present in at least one .

Behavior

Seasonal vertical within soil profile. Surface activity increases under favorable temperature and moisture conditions.

Human Relevance

Subject of ecological and life-history research. Cylindroiulus punctatus sequenced as part of biodiversity initiatives.

Similar Taxa

Other Julidae generaSimilar cylindrical body form; distinguished by male and other genitalic characters requiring microscopic examination.
Flattened millipede families (e.g., Polydesmida)Cylindroiulus has rounded, cylindrical cross-section versus the flattened body of polydesmid .

More Details

Genomic resources

The of Cylindroiulus punctatus has been sequenced and published through the Darwin Tree of Life initiative.

Life-history research

C. nitidus has been intensively studied for its and life-history traits, providing a model for understanding julid .