Common house spider, barn funnel weaver, domestic house spider
Barnardius zonatus
Agelenidae (Funnel Weavers), Order Araneae. Key family characteristics include three pairs of spinnerets with the posterior pair notably elongated, and eight eyes arranged in two rows.
Physical Description
Elongated oval abdomen with a distinct cardiac mark and longitudinal markings, tapering cephalothorax, typical agile running spider build.
Size Estimate
Body length approximately 8-12 mm with a leg span of 25-35 mm. Appears to be an adult or sub-adult specimen.
Coloration & Markings
Brownish-grey base color with pale yellowish or whitish longitudinal stripes along the carapace and a patterned band running down the dorsal abdomen.
Web Type
Funnel web. They construct a sheet-like web on surfaces like walls, corners, and vegetation that leads to a tubular retreat where the spider hides.
Eye Arrangement
Eight small eyes arranged in two slightly curved rows of four, typical of funnel weavers.
Leg Characteristics
Moderately long, robust, hairy legs with faint banding, adapted for rapid sprinting across webs and flat surfaces.
Venom & Safety Information
Venom Information
Contains neurotoxic venom used to subdue insect prey, but it is not medically significant to humans.
Medical Significance
Harmless to humans. Bites are extremely rare, usually only occurring if the spider is trapped directly against the skin, and typically result in minor local irritation similar to a mild mosquito bite.
Safety Recommendations
No specific safety precautions needed beyond wearing gloves when moving old woodpiles. To relocate, gently place a cup over the spider and slide a piece of paper underneath.
Habitat & Behavior
Habitat & Range
Cosmopolitan distribution, frequently found indoors in human dwellings, garages, sheds, and outdoors under rocks, woodpiles, and bark.
Behavior & Temperament
Fast-moving, generally docile and secretive, retreating rapidly into its funnel when disturbed rather than exhibiting aggression.
Diet & Prey
Insects including flies, mosquitoes, roaches, and other household pests caught in the sheet web.
Seasonal Activity
Active year-round indoors, with males becoming most conspicuous in late summer and autumn as they wander in search of mates.
Description
A common and beneficial household resident, this funnel weaver is an expert at keeping indoor insect populations in check. With its characteristic brownish coloration and speedy gait, it constructs a quiet sheet web in undisturbed corners, living an elusive lifestyle largely unseen by its human cohabitants.
Key Features
Elongated posterior spinnerets, pale longitudinal bands on the carapace, patterned abdomen, and the construction of a flat sheet web ending in a tubular retreat.
Similar Species
Wolf spiders (Lycosidae) which do not build webs, and grass spiders (Agelenopsis) which look very similar but generally inhabit outdoor lawns and bushes.
Life Cycle
Females produce silk egg sacs in the autumn, guarding them until spring when spiderlings emerge. They undergo multiple molts to reach maturity and typically live for one to two years.
Ecological Importance
Acts as an effective natural pest control agent inside homes and gardens, consuming large numbers of nuisance insects.
Conservation Status
Not evaluated by the IUCN, highly abundant and widespread globally.
Interesting Facts
These spiders have remarkable sensitivity to vibrations on their sheet web, allowing them to pinpoint the exact location of trapped prey instantaneously.
Photography Tips
Use macro lenses with natural lighting or a soft flash. Shoot from a side angle to capture the carapace patterns and spinnerets without disturbing the spider into its retreat.
Identified: 2026-09-09T18:48:31.370634