Chelifer cancroides

Chelifer cancroides
	Chelifer cancroides
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Arachnida
Order:	Pseudoscorpiones
Family:	Cheliferidae
Genus:	Chelifer
Species:	C. cancroides
Binomial name
	Chelifer cancroides; (Linnaeus, 1758)

Chelifer cancroides, the house pseudoscorpion, is a species of pseudoscorpions. It is a cosmopolitan, synanthropic, and harmless species to humans.[1]

Subspecies

There are two subspecies:[2]

Chelifer cancroides cancroides (Linnaeus, 1758)
Chelifer cancroides orientalis (Morikawa, 1954)

Description

Chelifer cancroides measure 2.5–4.5 mm (0.098–0.177 in) in length. The pedipalps are very long,[3] measuring 7–9 mm (0.28–0.35 in) when extended. The body is teardrop-shaped and has a rich mahogany color. The abdomen has 12 segments, only 10 of which are easily visible. The cephalothorax has one pair of eyes.[1]

Reproduction

Males maintain small mating territories, few centimeters in size. When a female enters the territory, the male initiates a mating dance and eventually deposits a spermatophore, which is then picked up by the females. Fecundity is 20–40 eggs. The development from egg stage into maturity takes 10 to 24 months and involves three molts;[1] molting may involve building a silk nest.[3] The total life span is 3–4 years.[1]

References

Jacobs, Steve. "Pseudoscorpions". Penn State College of Agricultural Sciences Department of Entomology. Penn State College of Agricultural Sciences. Retrieved 5 May 2016.
"Chelifer cancroides". Integrated Taxonomic Information System. Retrieved 20 June 2017.
Levi, Herbert W. (1948). "Notes on the life history of the pseudoscorpion Chelifer cancroides (Linn.) (Chelonethida)". Transactions of the American Microscopical Society. 67 (3): 290–298. doi:10.2307/3223197. JSTOR 3223197.

External links

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[Jacobs_Pseudoscorpions-1] Jacobs, Steve. "Pseudoscorpions". Penn State College of Agricultural Sciences Department of Entomology. Penn State College of Agricultural Sciences. Retrieved 5 May 2016.

[ITIS-2] "Chelifer cancroides". Integrated Taxonomic Information System. Retrieved 20 June 2017.

[Levi_1948-3] Levi, Herbert W. (1948). "Notes on the life history of the pseudoscorpion Chelifer cancroides (Linn.) (Chelonethida)". Transactions of the American Microscopical Society. 67 (3): 290–298. doi:10.2307/3223197. JSTOR 3223197.