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Basic arrangement of spider eyes, viewed from above. Most spiders have eight eyes, which tend to be arranged into two rows of four eyes on the head region. The eyes can be categorised by their location and are divided into the anterior median eyes (AME), anterior lateral eyes (ALE), posterior median eyes (PME), and posterior lateral eyes (PLE).
These spiders of about 2 to 5 millimetres (0.079 to 0.197 in) are rarely noticed, but generally look like somewhat faded woodlouse hunter spiders in the genus Dysdera. The carapace (cephalothorax or prosoma) is orange and the abdomen (opisthosoma) light gray. The two-eyed species have their two eyes in the anterior middle of the carapace.
Panjange spiders exhibit some of the most extraordinary morphology among Pholcidae. Males of most species have eye stalks, sometimes with long pointed processes; males of some species have unusually elongated pedipalps , which in spiders function as copulatory organs; and females of some species have external portions of their genitalia ...
What they look like: These are the spiders that build huge webs that you can see in the morning covered in dew. “Orb weavers spin their web each day and then tear it down and rebuild the next ...
The Agelenidae are a large family of spiders in the suborder Araneomorphae.Well-known examples include the common "grass spiders" of the genus Agelenopsis.Nearly all Agelenidae are harmless to humans, but the bite of the hobo spider (Eratigena agrestis) may be medically significant, and some evidence suggests it might cause necrotic lesions, [1] but the matter remains subject to debate. [2]
While the world's biggest spiders are mygalomorphs – Theraphosa blondi has a body length of 10 cm (3.9 in) and a leg span of 28 cm (11 in) – some species are less than one millimeter (0.039 in) long. Mygalomorphs are capable of spinning at least slightly adhesive silk, and some build elaborate capture webs that approach a metre in diameter.
Our homes are rife with window sills and other small crevices in which spiders can hide, while trash cans and compost bins provide a plentiful food source of scavenging insects, said Lisa Gonzalez ...
The eye arrangement of spiders in the genus Phonognatha Phonognatha graeffei in retreat. The body length of the male is 5 to 6mm and female 8 to 12mm. Males and females look very similar with red-brown legs and body and a cream coloured pattern on their backs. Their bodies are fat and oval shaped with long tapered legs. [4] [5]