Arrowhead Orb-Weaver Spider: Characteristics, Identification, and Prevention

What are the Key Characteristics of Arrowhead Orb-Weaver Spiders?

Here are the six key characteristics of arrowhead orb weaver spiders:

• Web Builders: The orb-weaver spiders have a circular orb-like web measuring approximately 30 cm in diameter. These nets are powerful and sticky and hence they can achieve success in catching tiny flying insects in the night.
• Hunting Style: They apply a passive mode of hunting. They do not chase but sit in the middle of their webs until the insects become entangled. The action conserves energy and enhances success in hunting.
• Diet: They eat flying insects, such as flies, moths and mosquitoes. One adult person eats approximately 2-3 insects every day, so they are effective in the reduction of the population of insects near houses and gardens.
• Behavior: Orb-weavers of arrows are mostly nocturnal. They usually construct their webs each night to make them as sticky and as strong as possible to capture prey at night.
• Lifespan: Their life cycle is normally one season, spring to fall. The majority of people perish after the first frost, and eggs live through the winter and hatch the next season.
• Sexual Dimorphism: Women are bigger and more brightly colored than men. The body length of a female is up to 9 mm and that of males is approximately 5 mm and duller in most cases.

Where Do Arrowhead Orb-Weaver Spiders Live?

Here are three habitats of the arrowhead orb weaver spiders:

• Habitats: Orb-weaver spiders, Arrowhead, are found at the edges of woodlands, gardens, and grass. These places provide them with constant insects and natural places to build their webs.
• Web Locations: They weave a web of orb between the shrubs and the tree branches and the tall grass. Webs remain near the ground in order to have good chances of catching flying insects.
• Geographic Range: They are abundant in the eastern and central parts of the United States. People live well in warm and damp regions where there are good insect populations.

What is the Life Cycle of Arrowhead Orb-Weaver Spiders?

Here are the three steps of the lifecycle of arrowhead orb weaver spiders:

• Eggs: The females hatch protective egg sacs in secret places, such as leaves or on crevices of the bark. Hundreds of eggs are contained in each sac. These sacs are not lost until the conditions of spring are favorable to hatching.
• Spiderlings: Spiderlings hatch in the spring and scatter out by silk ballooning, and attach to new locations with the wind currents. This step lowers competition because it secures them in different habitats.
• Juveniles: Juveniles undergo a number of molting stages during their growth. Every molt permits enlargement and growth of the body. Their development continues until they attain their final shape.
• Adults: Spiders become mature during the summer and live for less than one year. Their life cycle takes only one season. After procreation, adults normally die.

How Can You Identify an Arrowhead Orb-Weaver Spider?

Here are the five ways to identify an arrowhead orb weaver spider:

• Body Shape: The abdomen is triangular in shape (like an arrow). This sets them apart from the majority of the other orb-weavers. The spider gets its name because of the sharpness of the body outline.
• Coloration: The abdomen exhibits yellow, red, or brown color with distinct patterns. These hues give disguise to the leaves and flowers. To avoid being prey, their look is part of nature.
• Size: Women range between 714 mm and men remain smaller. This difference in size is evident in adults. Their bigger body aids the females in the production and protection of egg sacs.
• Web Type: They construct huge circular orb webs in order to trap flying insects. The nets are powerful and in good places. The construction provides the highest possibilities to hunt effectively.
• Behavior: They tend to sleep with their head up in the web. This is contrary to most orb-weavers. It aids in rapid reaction when the prey sits on the silk strands.

How Can You Prevent Arrowhead Orb-Weaver Spiders Around Your Home?

Here are the five steps to prevent arrowhead orb weaver spiders around your home:

• Reduce Outdoor Clutter: Cut shrubs, grass and unruly plants along the walls. This limits spaces of concealment and web constructions. Spiders are made unfavorable the spaces by making sure that the environment is clean.
• Seal Entry Points: Close cracks, differences, and holes are found near windows and doors. The spiders also enter the house through huge holes easily. A walled house reduces its chances of moving around internally.
• Limit Outdoor Lighting: These moths and flies are attracted to lights and spiders, respectively. The population of insects is lower with dimmer lights or shielded lights. Fewer insects destroy the major food source of spiders.
• Regular Cleaning: Take off window-frames, corners and porches. Removal of the webs discourages spiders from rebuilding again. The entrances can be maintained spider-free by washing them regularly.
• Maintain Gardens: Keep gardens in fine shape. Excessively growing plants provide the most suitable locations to construct webs. Habitats of spiders are reduced by clear areas.

If you’re seeing spiders, schedule a same-day inspection now!

Are Arrowhead Orb-Weaver Spiders Dangerous?

Orb-weaver spiders of the arrowhead species are not harmful to humans. They only have a negative impact on small insects such as moths, flies, and mosquitoes. Their teeth are too small to be effective in piercing human skin.

Bites are very uncommon and they are not usually severe. These symptoms do not need any medical intervention and they disappear with time. This species is not associated with serious health consequences.

It is significant since they contribute to the control of pests in nature. They decrease the number of mosquitoes and flies by catching them in their web. This renders them useful in the gardens, farms and areas of forests.

Populations are seasonal but do not pose any threat either inside or outside the house. Their purpose helps in maintaining the ecological balance by controlling insects.