“What kinds of spiders can you find in Romania?“
Many people are terrified of spiders and find them extremely creepy. This is unfortunate because not only are most spiders completely harmless, they are crucial to our environment by controlling the insect population. In fact, without spiders, our food supply would be in serious jeopardy.
Before we begin, I want you to know that the list below is just a fraction of the spider species found in Romania. Because of the sheer number of these arachnids, it would be impossible to cover them all. For example, some estimates claim there are over 50,000 kinds of spiders on the planet (and the list is still growing)!
With that being said, I did my best to develop a list of spiders that are MOST often seen and easily identified.
Here are the 7 MOST common SPIDERS found in Romania!
#1. Cross Orbweaver
- Araneus diadematus
Also known as the European Garden Spider, Cross Spider, Orangie, or Pumpkin Spider.
- Colors range from extremely light yellow to very dark grey.
- All individuals have white markings across the top of the abdomen, with four or more segments forming a cross (LOOK AT THE PICTURE ABOVE).
- Females range in length from 6.5 to 20 mm, while males range from 5.5 to 13 mm.
Cross Orbweavers are one of the most well-known spiders in Romania.
These spiders are common in many habitats, including forest clearings, hedgerows, meadows, and gardens. They are also seen near humans, such as near buildings or lighted stairwells. Cross Orbweavers typically hang upside down at the center of their spiral webs.
Cross Orbweaver Range Map
Interestingly, when approached, they start shaking and vibrating their web in hopes of startling the perceived intruder. If this fails, then the spider will typically drop straight down out of sight. Luckily, Cross Orbweavers are not aggressive and typically only bite when accidentally grabbed. Bite symptoms include mild pain, redness, and swelling that lasts for a few days.
Believe it or not, these common spiders build a new web EVERY DAY. Yes, they eat the entire web every night and then begin construction on a new one. And lastly, if you are a male Cross Orbweaver, you must be careful with females, as you will often be eaten directly after mating!
#2. European Nursery Web Spider
- Pisaura mirabilis
- Slender abdomen with LONG legs (the fourth one is the longest).
- Colors range from light to reddish brown and from gray to black. A lighter stripe is visible down the middle of the back.
- The male is between 10 and 13 mm, while the female is 12 to 15 mm.
These spiders are commonly found in Romania in tall grass, shrubs, or along the edges of woodlands.
Looking similar to wolf spiders, European Nursery Web Spiders get their name for how females protect their egg sacs. After carrying the egg sac in her mouth for a bit, she hides it under a leaf and spins a protective silk enclosure around the egg sac. From there, she sticks around to protect the babies until after their first molt. 🙂
European Nursery Web Spiders have a fascinating mating ritual! First, males find a gift, such as a dead insect, to offer to a prospective female. Then, after presenting the gift, the female will bite onto the gift if she is interested. From there, the male will move to deposit sperm with his pedipalps. WATCH THIS BEHAVIOR BELOW (and to see if the male survives)!
Interestingly, during copulation, the male almost ALWAYS keeps a leg on the gift, just in case the female decides to run away with it or attack him. If the female does change her mind about mating and starts to show aggression, the male typically will pretend to play dead until she calms down, at which point he may try mating again. The things spiders will do for love!
#3. Goldenrod Crab Spider
- Misumena vatia
Also called the Flower Spider or Crab Spider.
- Females can grow up to 10 mm (0.39 in) while males are quite small, reaching only up to 5 mm (0.20 in).
- They are usually yellow or white or a combination of these two colors. Shades of pale green and pink also exist.
- This species has a wide, flat body.
Crab spiders get their name from the unique way they can walk sideways, forwards, and backward, similar to a crab.
Goldenrod Crab Spiders primarily prey on insects much larger than themselves. To accomplish this feat, they rely on venom, which immobilizes their victims. But have no fear, as the venom is not dangerous to humans and their fangs are not powerful enough to penetrate our skin.
These spiders have the unique ability to change their color depending on the flower they are resting on, which helps them stay camouflaged as they hunt! Their color can also change depending on their diet, as colorful prey can show through their thin, transparent epidermis. For example, eating red-eyed fruit flies can make the abdomen turn pink. 🙂
#4. Pink Crab Spider
- Thomisus onustus
- Females measure 7–11 mm. Males are much smaller and range between lengths of 2–4 mm.
- Females are pink, yellow, or white. Males are brown to green-yellow.
- Both sexes have a triangular-shaped body.
The best places to find Pink Crab Spiders in Romania are on flowers or other vegetation that is low to the ground.
They differ from other similar species in that they prefer to sit in the center of flowers, as opposed to the petals.
Pink Crab Spider Range Map
Pink Crab Spiders don’t use webs to catch their prey. Instead, they sit and wait inside flowers for something to eat. Once a suitable victim comes by, they use their long forelegs to ambush it and make the kill. Interestingly, when insects are in short supply, such as during bad weather, they eat pollen and nectar to avoid starvation.
Lastly, they have developed a mutualistic relationship with certain plant species as these spiders feed on and help deter harmful insects. In fact, some plants even release an emission after being attacked that attracts Pink Crab Spiders in the hopes they feed on the intruder(s).
#5. Radiated Wolf Spider
- Hogna radiata
Wolf spiders are one of the most recognizable spiders in Romania!
They are found everywhere and in almost any habitat. I know that I see them often when flipping over rocks or logs. Unfortunately, there are so many individual species of wolf spiders that it would be impossible to list them here, especially since most look very similar.
But the most common wolf spider in Romania is the Radiated Wolf Spider (Hogna radiata).
Interestingly, wolf spiders do not make webs to catch their prey. Instead, they wait for an insect to walk by and then chase it down using their incredible eyesight! They also have retroreflective tissue in their eyes, which produces a glow if you flash light on their face.
Radiated Wolf Spider Range Map
Wolf Spiders will bite if provoked, but they do not always inject venom. Therefore, they are not considered dangerous to humans. Bite symptoms are minimal and may cause itching, swelling, and mild pain.
#6. Wasp Spider
- Argiope bruennichi
- Striking yellow and black markings across its body.
- The legs also have stripes.
- Females are around 17 mm. Males measure less than 5 mm.
This species is one of the most recognizable spiders in Romania!
These spiders get their name from their unique coloration, which is meant to resemble a wasp. Predators tend to leave them alone since they think they will be messing with a fierce stinging insect. 🙂
Wasp Spiders make beautiful orb-shaped webs in the morning. Interestingly, they construct a distinctive zig-zag pattern in the center of the web, which is thought to help attract insects by reflecting UV light. Look for them in sunny, open fields or gardens.
Despite their bright coloring, Wasp Spiders are not dangerous to humans. They are not aggressive and will only bite if seriously provoked.
#7. Triangulate Combfoot
- Steatoda triangulosa
- Small spiders that are only 3-6 mm in length.
- The cephalothorax (head) and legs are brownish-orange.
- The round, bulbous abdomen is creamy in color. Look for the triangle-shaped pattern on top.
These spiders are found in Romania NEAR PEOPLE!
Triangulate Combfoots are primarily house spiders and are typically observed in corners, especially in basements or rooms that are not often used. Although native to Eurasia, they have now spread across the entire world, moving from house to house. 🙂
Triangulate Combfoot Range Map
Honestly, there are probably a few in your home right now, but you shouldn’t be scared of Triangulate Combfoots. They are actually helpful because they feed on small insects and pests in your houses like ticks, ants, pillbugs, and other spider species (even potentially dangerous ones).
Even though they are relatively docile, bites occur due to their proximity to humans. But have no fear; their venom is not dangerous (unless you are allergic).
Check out these other guides about animals found in Romania!
Which of these spiders have you seen before in Romania?
Leave a comment below!