Plexippus petersi

{{Short description|Species of arachnid}}

{{Use dmy dates|date=October 2022}}

{{Speciesbox

| image = Plexippus petersi (jumping spider) on a human finger at golden hour.jpg

| image_caption = Male on a human finger

| taxon = Plexippus petersi

| authority = (Karsch, 1878)

}}

Plexippus petersi is a species of jumping spider native to Asia that has been introduced to Africa and Pacific islands.[https://wsc.nmbe.ch/species/32092 The World Spider Catalogue] The male is between {{convert|6|and|10|mm|in|2|abbr=on}} in length, and the female is around {{Convert|10|mm|2}}. This spider is commonly known as the tropical flycatcher{{cite book |title=A Field Guide to Spiders of Australia |last1=Whyte |first1=Robert |last2=Anderson |first2=Greg |year=2017 |publisher=Csiro Publishing |isbn=9780643107083 |page=295 |url=https://books.google.com/books?id=x5IkDwAAQBAJ&dq=Plexippus+petersi&pg=PA295 }} or small zebra jumper.{{cite book |title=Guhanagari: A Book on Urban Wildlife at Christ University, Bengaluru |last1=Hegde |first1=Pradeep |last2= Sagar |first2=Sathya Chandra |year=2016 |publisher=Christ University |isbn=9789382305934 |pages=32–33 |url=https://books.google.com/books?id=nTj3DAAAQBAJ&dq=Plexippus+petersi&pg=PA31 }}

Description

The male Plexippus petersi is between {{convert|6|and|10|mm|in|2|abbr=on}} long and the female is slightly larger. The head bears four pairs of eyes, one pair is larger than the others, forward-facing and movable, while the remainder are small and fixed in position. The cephalothorax is longer than it is wide and is brown with two darker reddish-brown bands on the dorsal surface. The abdomen is twice as long as it is wide and is yellowish-brown dorsally with two longitudinal darker brown bands which are broken posteriorly to give a pair of orangish spots on either side; the ventral surface is yellowish-brown and the spinnerets are greyish-brown. The pale parts of the abdomen are clad with whitish setae (bristles), and the darker areas are covered with brown setae. The legs are yellowish-brown, streaked with darker brown and darker near the joints, and have blackish-brown leading edges. There are scattered setae on the legs and the femur has a dense patch of brown hairs.

Distribution

Plexippus petersi is native to Southeastern Asia. Its range includes Africa, China, Japan, Indonesia, New Guinea, the Philippines, Vietnam,[https://books.google.com/books?id=AugAvBfYTh4C&dq=Plexippus+petersi&pg=PA83 Riceland Spiders of South and Southeast Asia] Laos,{{GBIF |id=5172456 |taxon=Plexippus petersi |accessdate=18 September 2021}} Cambodia, India, Sri Lanka, Malaysia and Australia.

Ecology

Plexippus petersi is a house spider, living indoors, and admired for the skilful way it hunts and catches mosquitoes, flies and other invertebrates. It has also been found living in crops in the Philippines, in one instance in a rice field infested with the armyworm Spodoptera mauritia, and in another, in a corn field attacked by the northern armyworm Mythimna separata. This spider has been investigated as a control agent for houseflies and showed potential as a bio-control agent.{{cn|date=September 2021}}

Gallery

File:Plexippus petersi (Karsch, 1878) (16314158032).jpg|Plexippus petersi in Thailand.

File:Plexippus petersi 9321.jpg|Male in Australia.

File:Plexippus petersi female in Trincomalee, Sri Lanka, dorsal view 19 July 2021.jpg|Female in Sri Lanka.

References

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Category:Salticidae

Category:Spiders of Asia

Category:Spiders described in 1878

Category:Taxa named by Ferdinand Karsch