![]() The light from the light source (e.g., a flashlight or sunlight) has been reflected from the spider's eyes directly back toward its source, producing a "glow" that is easily noticed. Flashing a beam of light over the spider produces eyeshine this eyeshine can be seen when the lighting source is roughly coaxial with the viewer or sensor. This reflective tissue is only found in four secondary eyes of the wolf spider. The tapetum lucidum is a retroreflective tissue found in eyes. Unlike most other arachnids, which are generally blind or have poor vision, wolf spiders have excellent eyesight. The bottom row consists of four small eyes, the middle row has two very large eyes (which distinguishes them from the Pisauridae), and the top row has two medium-sized eyes. They have eight eyes arranged in three rows. The many genera of wolf spiders range in body size (legs not included) from less than 10 to 35 mm (0.4 to 1.38 in). This can also help distinguish them from the similar-looking grass spiders.ĭescription Eye configuration of a Hogna species Two of the wolf spider's eight eyes are large and prominent this distinguishes them from nursery web spiders, whose eyes are all of roughly equal size. Wolf spiders resemble nursery web spiders (family Pisauridae), but wolf spiders carry their egg sacs by attaching them to their spinnerets, while the Pisauridae carry their egg sacs with their chelicerae and pedipalps. Some are opportunistic hunters, pouncing upon prey as they find it or chasing it over short distances others wait for passing prey in or near the mouth of a burrow. They live mostly in solitude, hunt alone, and usually do not spin webs. They are robust and agile hunters with excellent eyesight. Wolf spiders are members of the family Lycosidae (from Ancient Greek λύκος ( lúkos) 'wolf'). You can learn more about how we ensure our content is accurate and current by reading our editorial policy. We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. Wolf spiders seek to avoid human contact and will only bite if provoked. The following symptoms could signal an allergic reaction to the bite: If a person’s symptoms worsen quickly, or if they start feeling generally unwell, they should seek medical attention. In rare instances, a person may have a severe allergic reaction to the bite. An itchy or sore red mark may appear at the site of the bite.īites from a wolf spider and other insects are very similar, so unless a person actually sees the wolf spider biting them, they may never identify the culprit.Īs an article in the journal Critical Care Nursing Clinics of North America notes, spider bites may seem alarming, but in reality, they pose a minor risk. In the vast majority of cases, a person bitten by a wolf spider will react in the same way they would from a bite by other minor insects. ![]() ![]() Generally, a wolf spider bite is not dangerous. Share on Pinterest People may confuse a brown recluse spider for a wolf spider.
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