---
product_id: 19206544
title: "Black Widow Spider (Latrodectus mactans, Theridiidae), Adult Pair in a Non-Hazardous Aqueous Preservative"
brand: "spider pharm"
price: "$0.89"
currency: USD
in_stock: false
reviews_count: 5
url: https://www.desertcart.us/products/19206544-black-widow-spider-latrodectus-mactans-theridiidae-adult-pair-in-non
store_origin: US
region: United States of America
---

# Aqueous Preservative Non-Flammable Adult Pair Black Widow Spider (Latrodectus mactans, Theridiidae), Adult Pair in a Non-Hazardous Aqueous Preservative

**Brand:** spider pharm
**Price:** $0.89
**Availability:** ❌ Out of Stock

## Summary

> 🕸️ Embrace the Dark Side of Preservation!

## Quick Answers

- **What is this?** Black Widow Spider (Latrodectus mactans, Theridiidae), Adult Pair in a Non-Hazardous Aqueous Preservative by spider pharm
- **How much does it cost?** $0.89 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/19206544-black-widow-spider-latrodectus-mactans-theridiidae-adult-pair-in-non)

## Best For

- spider pharm enthusiasts

## Why This Product

- Trusted spider pharm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Non-flammable formula ensures peace of mind.
- • **Authentic Specimens:** Adult pair of Black Widow spiders for true enthusiasts.
- • **Eco-Friendly Choice:** Preserve nature without harming the environment.
- • **Perfect for Display:** Ideal for educational and decorative purposes.
- • **Unmatched Preservation:** Keep your specimens pristine with our non-hazardous solution.

## Overview

This product features an adult pair of Black Widow spiders preserved in a non-hazardous aqueous solution, ensuring safety and longevity for educational or decorative use.

## Description

Overview Latrodectus mactans is a medically and ecologically important species, which is frequently found in and around homes in southeastern United States. Preparation and Description Adult male and female spiders are preserved and fixed in alcohol, then transferred to an aqueous solution for safe handling and shipping. Most of these spiders are small or old, including captive bred extras that were too old or too small for use in venom production. Captive bred spiders were used, derived from breeding stock collected in SE Texas. Latrodectus in your area may be different. Uses This preparation is designed for teaching and studying spider anatomy, form and function and identification and as reference specimens for biologists and clinicians. They are also intended to be destroyed. For example, leg joints may be bent to study articulations and dissected bits may be removed for closer examination on microscope slides. Mature adult females and males are included for studying secondary sexual characteristics, which are important for understanding the behavior and life history of these spiders and are frequently used for keying and identifying spiders. Recommended Accessories (not included) Stereo dissecting microscopes and compound microscopes with high intensity incident illumination (from above) Dissecting dishes, insect pins, scalpels, fine-tipped tweezers and iris scissors Glycerin, coverslips and microscope slides

## Features

- Non-flammable and non-hazardous aqueous preservative
- Suitable for external anatomy

## Images

![Black Widow Spider (Latrodectus mactans, Theridiidae), Adult Pair in a Non-Hazardous Aqueous Preservative - Image 1](https://m.media-amazon.com/images/I/41IH7QBCl+L.jpg)

## Questions & Answers

**Q: What type of non-flammable/non-hazardous aqueous preservative do you use? i collect insects & preserve them in alcohol. the spiders tend to curl up**
A: Hi,
I don't think that this prep will help. Initially, we preserve the spiders in ethanol, then transfer them to a solution water with 0.2% potassium sorbate, adjusted to pH 5.0 with citric acid.
We use a different methods for preparing more relaxed specimens with legs spread. These are injected with Prefer Concentrate, a glyoxal based fixative from Anatech, spread on a pinning board and stored in a standard solution of Prefer for at least 3 days.

**Q: Are these real spiders**
A: They are real dead spiders.

**Q: Are they died**
A: Are they dyed? It doesn't look like it to me. Are they dead? Yep.

**Q: Can they b transfered from the aqeous solution to something more stable?**
A: Yes. No problem, though you may want to take in a few step with increasing percentages of you alternative.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This was such a great gift for my sister
  

*by L***K on Reviewed in the United States on February 2, 2018*

This was such a great gift for my sister! She absolutely loved it! I recommend this for anyone who loves spiders! My sister just enjoys looking at it and uses it for a paper weight. The female and male black widow spiders are indeed real. I've seen black widow's in real life before, so I know they are real.

### ⭐ 1.0 out of 5 stars







  
  
    I find it disgusting and appalling that you’re selling dead ones
  

*by A***R on Reviewed in the United States on November 7, 2017*

As somebody who keeps and studies black widows and appreciates their uniqueness and beauty, I find it disgusting and appalling that you’re selling dead ones.  Sick!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by J***C on Reviewed in the United States on May 9, 2015*

Great!

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/19206544-black-widow-spider-latrodectus-mactans-theridiidae-adult-pair-in-non](https://www.desertcart.us/products/19206544-black-widow-spider-latrodectus-mactans-theridiidae-adult-pair-in-non)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-12*