Common Spider Species

Most spiders prefer living outdoors, but all too often, you may run across a few spiders that have found their way indoors in search of food and shelter. Learn more about the lifecycles and habits of these 8-legged creepy crawlers commonly found in Singapore.

Some common type of spiders in Singapore, include the Yellow Sac Spider, Wolf Spider and Daddy Longlegs. Spider identification is important especially if you have a spider bite.

Daddy Longlegs

(Smeringopus pallidus)

Appearance

  • Adult female: 6 to 7mm, male: 5mm. They are generally brown to grey in colour.
  • Can be a one pill-like body segment or two body segments.
  • Long skinny legs that can be 30 times as long as its body.

Lifecycle

  • Eggs sacs are held in the mother’s jaws at all times until they hatch
  • Male lives for a year and dies after mating, female can live for 3 years

Habits

  • Very successful in urban areas where they spin thin, tangled webs in corners, under bathroom sinks, garages, attics and basements.
  • Does a ‘whirling’ action to defend itself when in danger.

Wolf Spider

(Trochosa ruricola)

Appearance

  • Adult female: 5/16"; male: 1/4". They are generally brown to grey in colour.

Lifecycle

  • Wolf spider mothers carry their egg sacs around with them attached to spinnerets under the abdomen.
  • When the young spiderlings hatch, they climb onto their mother's back where they live for the first few weeks of life.

Habits

  • They hunt at night but spend the day hidden amongst moss and decaying matter. 
  • They live in a shallow burrow, with an open and unadorned entrance.

Yellow Sac Spider

(Cheiracanthium spp.)

Appearance

  • Pale in colour, abdomen can be yellow or beige with a faint dark stripe running lengthwise.
  • 1/4 to 3/8 inches long
  • 4 pairs of legs, the 1st pair longer than the 4th.
  • Eight similarly-sized dark eyes arranged in two horizontal rows.

Life cycle

  • A female produces around 5 egg sacs each with 30 to 48 eggs. The female may produce several egg masses during her lifetime.
  • Approximately 30 percent of adult males get eaten by females after mating.

Habits

  • Feeding — usually small insects.
  • Location — they build a silken tube or sac (instead of a web) in a protected area which is used as their daytime retreat.
  • Visibility — they emerge at night to look for food. They drop to the floor to seek cover when disturbed.