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Furrow Spider

Larinoides

Description:

Furrow spiders formerly belonged to the genus Nuctenea, but now belong to the genus Larinoides. Furrow Spiders are common orb-weaver spiders, are difficult to distinguish from other kinds of spiders that live in webs, especially cobweb spiders. The best way to tell the difference between orb weavers and cobweb spiders is by looking at the web itself: the webs made by orb-weavers are very organized, and resemble a circular grid. The webs of cobweb spiders appear disorganized and messy. Orb weavers have 8 eyes, and they usually have large spherical abdomens. Like all spiders, orb weavers have 8 legs, 2 body parts, and fang-like mouthparts called "chelicerae." Typical Orb Web SIZE: Body length up to about 1/2" LIFE CYCLE Simple metamorphosis: like all spiders, young orb-weaver spiders hatch from eggs and look like tiny adults. They shed their skin as they grow. Most orb weavers only live for one year. At the end of the summer, female orb weavers produce a large amount of eggs (sometimes hundreds) that they wrap in a silken egg case. The young spiders hatch in the spring. ECOLOGY Orb weavers are very common in Kentucky, and can be found almost anywhere. They need weeds, fences, trees, walls, or other upright structures to build their webs. Orb weavers will eat almost anything small enough to get trapped in their webs, especially small insects and other spiders. Like most web-building spiders, orb weavers tend to have poor vision: they don't need to see very well to hunt because they can "feel" whenever prey gets caught in their webs. PEST STATUS Orb-weaver spiders are considered beneficial to humans. They eat flies, mosquitoes, ants, and other pest insects. Although many can give a painful bite, no Kentucky orb-weaver spiders are considered dangerous to humans (except to rare individuals who have severe allergic reactions to insect and spider bites).

Habitat:

often found around homes and other urban areas. Some furrow spiders are known to overwinter as adults: this is noteworthy because typical orb weaver species live for only one year, dying before winter. Several species of furrow spiders live in Kentucky and they all look very similar.

Notes:

This spider was outside our home and it caught this moth in mid air. I watched as it wrapped and fought to pull it up to the web from 4 ft down. This was truly one of the coolest things I have seen ever.

No species ID suggestions

New Castle, Kentucky, USA

Lat: 38.43, Long: -85.17

Spotted on Nov 11, 2011
Submitted on Aug 17, 2012

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