Castianeira Keyserling, 1879
publication ID |
https://doi.org/ 10.5281/zenodo.897849 |
DOI |
https://doi.org/10.5281/zenodo.6281250 |
persistent identifier |
https://treatment.plazi.org/id/2A28112B-413B-A952-FA08-43C8212AF754 |
treatment provided by |
Jeremy |
scientific name |
Castianeira Keyserling |
status |
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Genus Castianeira Keyserling View in CoL View at ENA
Castianeira Keyserling, 1879 View in CoL . Verh. Zool. Bot. Ges. Wien.: 335.
Thargalia Karsch, 1880. Zeit. f.d. Ges. Natur. 53: 374.
Tylophora Simon, 1887. Ann. Soc. Ent. Fr.: 377.
Geotrochu Emerton, 1890. Trans. Conn. Acad. Arts Sci. 8: 4.
Castiuneira Comstock, 1940. The Spider Book. New York: 592.
Medium-sized (4-8 mm long) clubionids with elongated ant-like bodies and moderately long and thin legs. The members of the genus are easily recognized by the heavily sclerotized, sometimes shiny carapace and abdomen; carapace elongate ovoid, bulging and highest along fovea dark brown to reddish black, darker in eye area; small eyes uniform in size, in two transverse rows with AE recurved, AME closer to laterals than to each other, PE distinctly procurved and longer than AE; chelicerae moderately long, robust, and hirsute, with two promarginal and two (sometimes three) retromarginal teeth; outer laterals of maxillae convex and not constricted; legs long and slender, usually orange to dark brown or black, possessing short dense claw tufts and thin scopulae; trochanter IV with prominent apicoventral notch; femur I with two or three dorsal spines, one or two prolaterals, metatarsus I with four ventral spines in two pairs. Abdomen elongated, ovoid to slender, with transverse bands of white scale-like setae and large shiny dorsal epigastric and ventral scuta (reduced in females), lacks cluster of long erect setae at anterior end; femur and patella of male palpus without apophysis; tibia with strong retrolateroventral ridge bearing one or more small teeth; cymbium basally rounded, long and slender distally; tegulum like cymbium but enclosing two loops of seminal duct within base; embolus long and slender, straight, spirally twisted apically, emanating directly from elongated tip; epigynum with rounded convex hairy plate, copulatory openings small, round, elliptical and slit-like, well separated, distinct, and often linked by shallow grooves; spermathecae longer than wide, touching midline, rugose, and commonly with slender posterior part quite close to the anterior of genital groove.
Leg | Femur Patella Tibia Metatarsus Tarsus Total | |||||
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1 | 2.55 | 0.83 | 2.40 | 2.00 | 1.35 | 9.13 |
2 2.45 | 0.88 | 2.30 | 1.80 | 1.25 | 8.68 | |
3 | 2.10 | 0.83 | 2.00 | 1.90 | 0.90 | 7.73 |
4 | 3.20 | 0.88 | 2.80 | 3.35 | 1.30 | 11.53 |
Pedipalp | 0.85 | 0.20 | 0.50 | - | 1.10 | 2.65 |
These spiders are common in leaf litter in shady environments, some associated with ants.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Castianeira Keyserling
Barrion, A. T. & Litsinger, J. A. 1995 |
Castianeira
Keyserling 1879 |