Ventral view of female showing the orange hour glass. Fullerton, Orange County, CA. 10/25/06. Copyright Lenny Vincent, Fullerton College, Fullerton, California.
Brown widow
Latrodectus geometricus
Araneae: Theridiidae
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Male. Orange, Orange County, CA. Copyright Lenny Vincent, Fullerton College, Fullerton, California.
Male (left) and female (right) showing sexual dimorphism. Orange, Orange County, CA. Copyright Lenny Vincent, Fullerton College, Fullerton, California.
Adult male (size ~3 mm) showing coiled pedipalps. Laguna Beach, Orange County, CA. 6/21/09. Copyright Lenny Vincent, Fullerton College, Fullerton, California.
Female. Huntington Beach, Orange County, CA. 11/30/06. Copyright Lenny Vincent, Fullerton College, Fullerton, California.
The spiked egg sacs belong to the brown widow. The larger and smoother egg sac is from a black widow. Note the exit holes. The brown widow eggs sacs were collected in Brea, Orange County, CA, 1 Sept, 2006. Copyright Lenny Vincent, Fullerton College, Fullerton, California.
Female with egg sacs. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female with egg sacs. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female with egg sacs. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female with egg sacs. Santa Ana, Orange County, CA. 05-09-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Egg sacs and hatchlings. Laguna Beach, Orange County, CA. 05-27-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Hatchlings. Laguna Beach, Orange County, CA. 05-27-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Hatchlings. Laguna Beach, Orange County, CA. 05-27-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female with egg sacs. Orange, Orange County, CA. 08-06-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.
Female with egg sac. Orange, Orange County, CA. 08-06-07. Copyright: Peter J. Bryant (pjbryant@uci.edu). Original available from Biological Photo Service.