Western Black Widow Spider

Description: English: Latrodectus hesperus, female - western black widow Identification: The spider was judged to be a western black widow and not an eastern or northern based on the location. Its egg sac was observed a few weeks after this image was taken and it was black widow like and not brown widow like. Description: There is a wrapped up moth with eggs laying on its exterior. The female black widow was observed to have killed and wrapped this moth. The wrapped up prey in the foreground was a funnel web spider. The source of the eggs on the moth is not certain. They may have been those of the funnel web spider that were laid just before it was killed. The smaller spider may have been a Steadota male. There were several of these smaller spiders in this nest and a Steadota female was observed in the nest. Two much larger male black widows were also observed in the outer periphery of this nest. The images of these can be seen here: Location: Fullerton, CA, USA. Date: 8 November 2008. Source: Own work. Author: Davefoc. Other versions: Other images of the same spider: .

Description: English: Latrodectus hesperus male dorsal side See http://commons.wikimedia.org/wiki/File:LatrodectusHesperusMaleLightColoredVentral003A.JPG for more details about this image. See http://commons.wikimedia.org/wiki/File:LatrodectusHesperusMaleDorsalDarkColor.JPG for an image of a darker colored male. Date: 11/7/2008. Source: Own work. Author: Davefoc. Other versions: These are different images of the same spider .

Description: Black widow spider (Latrodectus hesperus) living in flower pot with egg sac, taken Los Angeles County, California. Date: 12 March 2008. Source: Own work. Author: en:User:Jengod.

Description: English: Black widow spider parceling up wasps. Date: June 2008. Source: Self-photographed. Author: John.

Description: English: Latrodectus hesperus, female - western black widow Identification: The egg sac was observed and seen to be like a black widow and not that of a brown widow. It was judged to be a western black widow (not an eastern or northern) based on the location. location: Fullerton, CA, USA I believe the reason that the hour glass is orange with yellow stripes and not a solid red is that this spider is in the instar before the hour glass changes to the standard red hour glass. Date: 1 November 2008. Source: Own work. Author: Davefoc.

Description: English: Latrodectus hesperus (Western Black Widow Spider) Immature Female. Date: 7 September 2008. Source: Own work. Author: Davefoc. Camera location 33° 25′ 54.07″ N, 117° 37′ 40.56″ W : View all coordinates using: OpenStreetMap - Google Earth: 33.431685; -117.627933. Photograph was taken in San Clemente, CA. The spider is on a stucco wall. A brick leaning against the wall was removed and the spider stayed in place more or less while this picture was taken. The photograph in the upper right corner of the image shows the underside of the same spider. Licensing[edit] Public domainPublic domainfalsefalse. : I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. Public domainPublic domainfalsefalse.

Description: English: https://www.inaturalist.org/observations/193. Date: 26 April 2008. Source: https://www.inaturalist.org/photos/121. Author: Ken-ichi Ueda.

Description: English: Latrodectus hesperus. Date: 28 January 2017, 19:05:13. Source: https://www.flickr.com/photos/129054172@N08/32968914520/. Author: Aden C.

Description: English: A black widow the photographer found in his house. Date: June 2008. Source: https://www.flickr.com/photos/juniorvelo/2563696058/in/set-72057594113044440/. Author: Steve Ryan.

Description: English: Female Black widow spider sunning herself on a nice day. Source: Own work. Author: Kalishandra Weselowski.

Description: English: Latrodectus hesperus, female - western black widow Identification: The spider was judged to be a western black widow and not an eastern or northern based on the location. Its egg sac was observed a few weeks after this image was taken and it was black widow like and not brown widow like. Location: Fullerton, CA, USA. Date: 3 November 2008. Source: Own work. Author: Davefoc.

Description: English: Latrodectus hesperus (Theridiidae). Date: 15 February 2022, 15:00:04. Source: Own work. Author: Juan Carlos Fonseca Mata. Camera location21° 09′ 24.92″ N, 100° 57′ 17.54″ W View all coordinates using: OpenStreetMap 21.156922; -100.954872.

Description: English: Latrodectus hesperus (Western Black Widow Spider) Immature Male. Date: 6 September 2008. Source: Own work. Author: Davefoc. Camera location 33° 25′ 54.07″ N, 117° 37′ 40.56″ W : View all coordinates using: OpenStreetMap - Google Earth: 33.431685; -117.627933. Image taken in San Clemente, CA, USA. The small size and the as yet not fully developed pedipalps indicate that the spider is immature. Licensing[edit] Public domainPublic domainfalsefalse. : I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. Public domainPublic domainfalsefalse.

Description: English: Latrodectus hesperus male ventral view The identification of this spider is based on the Southern California location where the other similar species of Latrodectus (L. mactans and L. variolus) are unlikely and the judgment of a Cal State Fullerton professor who saw a picture of the spider and identified it as L. Hesperus. The other images linked to here are different views of the same spider. This spider was observed to reside in the web of a dark colored female black widow for the period of about a month. Another more darkly colored L. hesperus male was observed to reside in the same web during the same time period. The large disks on the end of the spiders pedipalps are used by the male spider to transfer its sperm to the female. The body of this spider was about 7mm long. See http://commons.wikimedia.org/wiki/File:LatrodectusHesperusMaleDorsalDarkColor.JPG for an image of the darker colored male. Date: 30 October 2008. Source: Own work. Author: Davefoc. Other versions: .

Description: English: Dr. Bush holding a western black widow spider, Latrodectus hesperus. Date: 29 October 2001. Source: Own Work. Author: Dr Sean Paul Bush. Permission(Reusing this file): trueDo not reuse (yet)!Do not reuse (yet)! Unless the Wikimedia Volunteer Response Team receives a release soon, this file will be deleted. : An email has been received at VRTS concerning this file, and can be read here by users with a VRTS account. The email was not sufficient as the VRT agents could not verify that it was from the owner of the copyright of the image. A reply has been sent outlining the next required steps. For an update on the issue, please contact the user (Josve05a) who added this template to the page, or someone else with a VRTS account, or the VRT noticeboard. If a valid permission is not provided within 30 days of the first response by a VRT agent, this file will be deleted. Please do not file an additional deletion nomination for permission reasons. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2021123110006267. .

Description: Black Widow. Date: 2007. Source: Own work. Author: Brocken Inaglory.

Description: English: Western Black Widow (Latrodectus hesperus) Male, dorsal view Image location: Fullerton, California The spider was observed in the web of a dark colored black widow female over the course of about a month. A light colored western black widow male was also observed in the web at about the same time. See http://commons.wikimedia.org/wiki/File:LatrodectusHesperusMaleLightColoredDorsal003A.JPG for an image of the lighter colored male. Date: 7 November 2008. Source: Own work. Author: Davefoc. Other versions: Ventral view.

Description: English: Lauro decries on a Meyer can loss. Date: 1 February 2022 (according to Exif data). Source: Own work. Author: Arlo James Barnes.

Description: English: Latrodectus hesperus male side view. Date: 30 October 2008. Source: Own work. Author: Davefoc. Other versions: .

Description: English: This image depicts a frame from the video that shows the proof of concept for a device that automatically collects authentic dragline silk from the spider Latrodectus hesperus (2011). Date: 19 March 2017. Source: Own work. Author: Jeffery Doud. Camera location 37° 39′ 30.38″ N, 121° 00′ 46.44″ W : View all coordinates using: OpenStreetMap - Google Earth: 37.658439; -121.012900.

Description: English: Latrodectus hesperus, male, ventral view, dark coloration Location: Fullerton, CA, USA. Date: 25 October 2008. Source: Own work. Author: Davefoc. Other versions: Dorsal view.

Black widow spider (Lactrodectus hesperus) and egg sac. Photograph by Mark Chappell of University of California, Riverside. See Image talk:Blackwidow eggsac silk.jpg for permission. : This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic license.:. https://creativecommons.org/licenses/by-sa/2.5 CC BY-SA 2.5 Creative Commons Attribution-Share Alike 2.5 truetrue.

Description: English: Latrodectus hesperus male side/ventral view See http://commons.wikimedia.org/wiki/File:LatrodectusHesperusMaleLightColoredVentral003A.JPG for more details about this image. See http://commons.wikimedia.org/wiki/File:LatrodectusHesperusMaleDorsalDarkColor.JPG for an image of a darker colored male. Date: 13 November 2008. Source: Own work. Author: Davefoc. Other versions: .

Description: English: Western Black Widow feeding on an unfortunate earwig. Date: 16 August 2014. Source: Own work. Author: Shravans14.