This brilliantly marked spider is Lactrodectus geometricus, the brown widow spider — a smaller, less “medically significant” sister to the black widow spider, L. mactans. She is not native to Florida — originally from southern Africa or possibly South America, brown widows probably hitched a ride along with traveling humans (or plants, or other cargo)…
Tag: araneae
Admestina tibialis
These unspeakably small (~3mm) jumping spiders are full grown! and unimaginably cute. Without looking through the camera’s macro lens, I can only barely tell there is a small moving speck on the wooden boardwalk rail — I cannot imagine locating one of these on, say, tree bark. Despite being adorable, these poor things suffer from…
Baby Jumping Spiders
Newly-hatched baby spiders can be almost spherical, tiny, half-formed, without a lot of features. I’ve heard spider enthusiasts describe newly-hatched spiders as “eggs with legs“. After their first molt, though, they seem to become tiny versions of the adults, although until a spider has grown up completely it may be missing characteristics that allow you…
Heptagonal Orbweaver
This unassuming 3mm spider was almost invisible, hanging vertically, upside-down, with its legs in an X pattern in a tiny, five-inch web with a little stabilimentum. It looked like a miniature representative of the genus Argiope, one of the big garden spiders, but in fact this lovely lady is an adult female heptagonal orbweaver, Gea…
Tuftlegged Orbweaver
The kind folks at iNaturalist.org identified this one for me — I was looking in entirely the wrong family. This lovely lady is a tuft-legged (or tuftlegged) orbweaver spider, Mangora placida, with the definitive feature, I think, being those two white spots on her abdomen, along with the shape of the dark brown stripe they’re…
Tigrosa annexa (Wolf Spider)
This is a tentative identification, because I can see from the bugguide forums that not everyone is decided on what this species is or even what genus it’s in, but based on “two yellow dashes flanking the median stripe in the cephalic region“, I’m pinning this lovely female wolf spider as Tigrosa annexa. Formerly members…
Crab Spider (Mecaphesa sp.)
One of the pitfalls of the identification of tiny things is that, eventually, you get a pile of things you can’t tell apart without dissecting them putting them under a microscope. Crab spiders are one such group. There are 18 species of crab spider in the genus Mecaphesa in North America, and — well, not…
Attidops cinctipes (Jumping Spider)
The minuscule size of this spider is difficult to convey — I thought it was a lint ball until it moved and tried to pounce on a springtail (which was bigger than it was, to give you an idea of scale). Attidops cinctipes, no common name, is a well-camouflaged and extremely tiny jumping spider which…
Florida Longspinneret Spider
This identification is tentative, as bugguide itself does not seem 100% sure which Hersiilid spiders might be found in Florida. This spider is definitely from the family Hersiliidae, the longspinneret spiders, but it may be Yabisi habanensis (Florida longspinneret spider), Neotama mexicana (mexican twintailed spider), or Murricia uva (no common name). I am going with…
Yellow Garden Spider
This inch-long behemoth is a juvenile yellow garden spider (Argiope aurantia). When it is grown, it will be a brilliant yellow and black, and almost three inches across including the legs. (Assuming it’s a female, which is a good guess, as even now she’s bigger than an adult male; the boys top out at about…
Sylvan Jumping Spider
A new species for me — this tiny dude (females are light brown) was off the marked path and I was unable to get closer, but he was at least kind enough to sit and stare at me long enough for me to get some photos. This is a sylvan jumping spider. Alas, both Colonus…
Humpbacked Orbweaver
Humpbacked orbweaver spiders (Eustala anastera) are identified primarily by the little bump on the end of their abdomen (sort of visible in this photo) and by lichen-green coloration (although they also come in orange and rusty brown colors). They are pretty variable, pattern-wise; you can see some of the color variation here. This one has…
Spiny Orb Weaver
You can tell that a lot of people notice this brightly-colored, distinctive spider in their gardens, as it’s collected so many common names: spiny orb weaver, jewel spider, spiny-bellied orbweaver, kite spider, jewel box spider, smiley face spider, crab spider, crablike spiny orbweaver. Good heavens. The Latin name means roughly “thorn-belly” (Gasteracantha) and “crab shaped”…
Tmarus Floridensis
Crab spiders are much like jumping spiders — they don’t build a permanent web, and instead go hunting for their prey. Crab spider have smaller eyes than jumpers (relatively), and the eyes appear to extend out of a “hood” on the head. Their first two pairs of legs are much longer than their last two,…
Hamataliwa Grisea
Admission time here: I used to think that jumping spiders were the epitome of cuteness, but that was before I met my first lynx spider. This is Hamataliwa grisea, a tiny (1cm) lynx spider which suffers from a scandalous lack of common name. Bugguide.net contributors have called it a “bark lynx spider” and “not a…
Metacyrba Punctata
I’ve been told that, when a species does not have a common name, I should give it one. This little fellow deserves one, don’t you think? This handsome Metacyrba punctata jumping spider was wandering around on my garage door when I spotted him. He gave me a few choice leg gestures (“Go away! I’m busy!”)…