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Arachnids › Comb-footed Spiders

Northern Black Widow

Latrodectus variolus

6,471 observations in the source records

Wildlife study photograph from iNaturalist.
(c) spencerhigh, some rights reserved (CC BY-NC)

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

Photos you add are credited to you, and you keep the copyright.

What the records say

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Virginia.January 37, February 40, March 43, April 71, May 97, June 63, July 37, August 36, September 43, October 40, November 33, December 34.
United States3,708
Virginia550
Maryland410
Missouri355
Canada318
Ontario283
Kentucky253
North Carolina210
New York206
West Virginia196

Counts show where people looked, not only where it lives.

Traits

Behavioral

  • CarnivoreEats other animals or animal-derived prey as a major part of its diet.Inferred from its group

Physical

  • ExoskeletonHas a hard external skeletonFrom its classification

Practical

  • VenomousProduces venom for defense or huntingFrom its classification

Group and habits

  • PredatorDescends from an animal lineage whose members commonly hunt other animals.Inferred from its group

Classification

KingdomAnimals · Animalia
PhylumArthropods · Arthropoda
ClassArachnids · Arachnida
OrderSpiders · Araneae
FamilyComb-footed Spiders · Theridiidae
GenusWidow Spiders · Latrodectus

Sources

Remember the name next time.

Practise Northern Black Widow with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.