Spiders are a crucial part of Ontario’s ecosystem, helping to control insect populations. However, many people find them unsettling, especially when they enter homes and workplaces. Understanding the spider species in Ontario can help residents distinguish between harmless and potentially harmful spiders.
In this guide, we will explore common species found in the province, how to identify them, and effective ways to manage spider populations.
House Spider (Parasteatoda tepidariorum)
The house spider is one of the most common spider species in Ontario and is frequently found in homes, garages, and basements. They are small to medium-sized, with a brown or grayish coloration and patterned abdomen.
Identification Features:
- Brownish body with darker markings
- Webs found in corners, ceilings, and window frames
- Non-aggressive and harmless to humans
Behavior and Habitat:
House spiders prefer undisturbed areas, such as closets and basements. They construct tangled webs to catch flying insects and remain hidden during the day.
Wolf Spider (Lycosidae family)
Wolf spiders are robust, fast-moving hunters that do not rely on webs to catch their prey. They are frequently found outdoors but may wander indoors in search of food.
Identification Features:
- Large, hairy body with brown and black patterns
- Prominent eyes arranged in three rows
- Quick and agile movement
Behavior and Habitat:
These spiders prefer grassy and wooded areas but sometimes enter homes during colder months. While their size may be intimidating, they are not aggressive and rarely bite humans.
Black Widow Spider (Latrodectus variolus)
Although rare, the Northern Black Widow can be found in parts of Ontario. This venomous species is identifiable by its glossy black body and distinctive red hourglass marking on the underside of its abdomen.
Identification Features:
- Shiny black body with a red hourglass marking
- Thin legs and compact size
- Found in dark, sheltered areas
Behavior and Habitat:
Black widows prefer undisturbed outdoor locations such as woodpiles, garages, and sheds. Their bites can be medically significant, so it is advisable to seek professional spider control if you suspect their presence.
Cellar Spider (Pholcus phalangioides)
Also known as “daddy longlegs,” cellar spiders are commonly found in basements, attics, and storage areas. They are known for their extremely long legs and delicate bodies.
Identification Features:
- Small body with long, thin legs
- Light brown or tan coloration
- Builds irregular, messy webs in dark corners
Behavior and Habitat:
Cellar spiders are non-aggressive and help control other insect populations. They vibrate rapidly in their webs when disturbed, making them difficult to capture.
Jumping Spider (Salticidae family)
Jumping spiders are small, energetic, and known for their excellent vision and impressive jumping ability. They are one of the most visually appealing spider species in Ontario, often displaying metallic or iridescent colors.
Identification Features:
- Compact body with short legs
- Large, forward-facing eyes
- Active during the day, often seen hunting insects
Behavior and Habitat:
These spiders do not build webs but stalk and pounce on their prey. They are commonly found on windowsills, walls, and outdoor plants.
Fishing Spider (Dolomedes species)
Fishing spiders are among the largest spider species in Ontario, often found near lakes, rivers, and ponds. They can walk on water and even catch small fish.
Identification Features:
- Large, brownish-gray body with distinct markings
- Long legs with water-resistant hairs
- Found near water sources and damp environments
Behavior and Habitat:
These spiders are excellent swimmers and often reside near docks, boat houses, and marshy areas. Despite their size, they are non-aggressive toward humans.
How to Get Rid of Spiders in Your Home
If spiders become a nuisance, there are several effective ways to reduce their presence indoors. If you’re wondering how to get rid of spiders, simple preventive measures can significantly decrease the chances of encountering unwanted arachnids..
Tips for Spider Prevention:
- Seal Entry Points: Close gaps around doors, windows, and vents.
- Reduce Clutter: Spiders thrive in undisturbed areas with plenty of hiding spots.
- Keep Outdoor Lighting to a Minimum: Lights attract insects, which in turn attract spiders.
- Regular Cleaning: Vacuuming corners, ceilings, and basements removes webs and egg sacs.
For severe infestations, spider extermination services can provide professional treatment to ensure a spider-free environment.
When to Call Professional Spider Control Services
While most spiders are harmless, some species, such as the black widow, require expert handling. If you notice a significant number of spiders or suspect venomous species in your home, hiring professional spider control services is the best option.
Benefits of Professional Spider Control:
- Accurate Identification: Experts can determine the exact species present.
- Effective Treatments: Safe and targeted pest control solutions.
- Long-Term Prevention: Advice on how to prevent future infestations.
Conclusion
Ontario is home to a diverse range of spider species, each playing an essential role in the ecosystem. While most spiders are harmless, knowing how to identify different spider species in Ontario can help alleviate concerns and prevent unwanted encounters. If spiders become a persistent issue, spider extermination services and professional spider control can provide effective solutions. By following preventive measures and staying informed, you can maintain a comfortable and spider-free home.
