Prevalence of Brown Widow and Black Widow Spiders (Araneae: Theridiidae) in Urban Southern California

Prevalence of Brown Widow and Black Widow Spiders (Araneae

Hence, the probability of envenomation in southern California by a Latrodectus spider might increase with the further urban encroachment of brown widows while paradoxically, simultaneously decreasing the risk of overall Latrodectus envenomation because of minor symptoms of a brown widow bite.

The Prevalence of Brown Widow and Black Widow Spiders

In southern California, brown widow spiders have become ubiquitous around urban homes and are well known to the general public because of their high numbers and distinctive spiked egg sacs.

The prevalence of brown widow and black widow spiders

The prevalence of brown widow and black widow spiders (Araneae: Theridiidae) in urban southern California. Vetter RS(1), Vincent LS, Danielsen DW, Reinker KI, …

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S C The Prevalence of Brown Widow and Black Widow …

underthecurledlipofpottedplants,intherecessedhandleofplastictrashbins).Nonetheless,brown widow spider bites are less toxic than those of native western black widow spiders and, hence, if they are displacing black widows, overall widow envenomation risk may actually be …

The Prevalence of Brown Widow and Black Widow Spiders

ABSTRACT The brown widow spider, Latrodectus geometricus C. L. Koch, has become newly established in southern California during the first decade of the 21st century. Brown widows and egg sacs were collected within the urban Los Angeles Basin using timed searches. We also collected and compared the abundance and distribution of the native western black widow spider, Latrodectus …

Published in: Journal of Medical Entomology · 2012Authors: Richard S Vetter · Leonard S Vincent · Douglas W R Danielsen · Kathryn I Reinker · D…Affiliation: University of California Riverside · Fullerton College · Humboldt State University · Uni…About: Invasive species · Latrodectus

Are brown widows displacing black widow spiders around

In «The Prevalence of Brown Widow and Black Widow Spiders (Araneae: Theridiidae) in Urban Southern California,» a soon-to-be-released article in the July issue of …

How to Spot a Brown Widow Spider | Montrose, CA Patch

Unlike its starkly black-and-red colored relative, the black widow, the coloration of a brown widow consists of a mottling of tan and brown with black accent marking.

Are Brown Widows as Dangerous as Black Widows? | Ask an

The prevalence of brown widow and black widow spiders (Araneae: Theridiidae) in urban southern California. Journal of medical entomology , 49 (4), 947-951. Special thanks to Catherine Scott for providing ideas about how to research for this post, and allowing us to bounce ideas off her.

Southern California Black Widow Spider Has New Eight

Monday, the Entomological Society of America began touting the study, «The Prevalence of Brown Widow and Black Widow Spiders (Araneae: Theridiidae) in Urban Southern California.»

Latrodectus geometricus – Wikipedia

Latrodectus geometricus, commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a ‘cousin’ to the more infamous Latrodectus mactans (black widow).

Genus: Latrodectus

Widow Spiders and Their Relatives Management Guidelines

Black Widow Spiders

EENY 560/IN1000: Southern Black Widow Latrodectus mactans

Vetter RS. The prevalence of brown widow and black widow spiders (Araneae: Theridiidae) in urban Southern California. Journal of Medical Entomology 49: 947-951. Wolfe MD, Myers O, Caravati EM, Rayburn WF, Seifert SA. 2011. Black widow spider envenomation in pregnancy. The Journal of Maternal-Fetal and Neonatal Medicine 24: 122-126.

Brown widow spider – Latrodectus geometricus

Natural egg sac clutch size of the brown widow spider, Latrodectus geometricus (Araneae: Theridiidae) in southern California. Bulletin of the Southern California Academy of Sciences 113: 100-102. Bulletin of the Southern California Academy of Sciences 113: 100-102.

common name: Southern black widow spider – entnemdept.ufl.edu

Vetter RS. The prevalence of brown widow and black widow spiders (Araneae: Theridiidae) in urban Southern California. Journal of Medical Entomology 49: 947-951. Wolfe MD, Myers O, Caravati EM, Rayburn WF, Seifert SA. 2011. Black widow spider envenomation in pregnancy. The Journal of Maternal-Fetal and Neonatal Medicine 24: 122-126.