Sergiolus cyaneiventris
Simon, 1893
Sergiolus cyaneiventris is a of ground in the Gnaphosidae, first described by Simon in 1893. Like other members of its , it is characterized by bold coloration that may represent of (). The species is known from the Caribbean region, including Cuba, and has been recorded in the United States. It shares the agile, nomadic habits and cylindrical typical of the genus Sergiolus.
Pronunciation
How to pronounce Sergiolus cyaneiventris: /sɛrˈdʒi.o.ləs saɪˌæn.iˈvɛn.trɪs/
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Identification
Distinguished from other colorful by the cylindrical at the tip of the , a diagnostic feature of Gnaphosidae. Separation from such as S. capulatus and S. montanus requires examination of : the in females and in males. The specific epithet 'cyaneiventris' (-bellied) suggests distinctive coloration, though detailed description of this ' patterning is not available in the provided sources.
Distribution
Recorded from Cuba and the United States. GBIF distribution records indicate presence in the Caribbean and North America.
Similar Taxa
- Sergiolus capulatusOverlapping distribution in eastern United States; both exhibit bold coloration potentially mimicking . Requires genital examination for reliable separation.
- Sergiolus montanusWestern North with similar body plan and coloration. Geographic separation may assist identification, but genital characters are definitive.
- Callilepis spp.Another in Gnaphosidae with similar coloration; distinguished by genital and subtle structural differences.
- Timulla spp. (Mutillidae) that Sergiolus , including S. cyaneiventris, may mimic in appearance; distinguished by 8 legs, , and lack of a constricted waist.
More Details
Taxonomic History
Several members of Sergiolus were formerly placed in the genus Poecilochroa; older references may use this synonym.
Genus-Level Characteristics
The Sergiolus comprises approximately 16 north of Mexico. Members are -sized (females 6-10 mm, males 5.5-7 mm), mostly , and do not construct capture webs. They build retreats for molting, guarding, and .