Lawn wolf spider (Hippasa holmerae)

Lawn wolf spider (Hippasa holmerae) is a species belonging to the family Lycosidae. It is small and constructs cotton-like, matted webs among the grass on the ground surface. Like other spiders, it possesses a distinct body structure consisting of a robust cephalothorax and abdomen.

H. holmerae features a pale brown cephalothorax marked with a characteristic white pattern—an elongated "X" shape formed by two pairs of white lines that widen across the head and thoracic regions. The sternum is brownish with a longitudinal black stripe.

The abdomen has a blackish background adorned with a series of transverse, light-brown patches, covered in fine brown, black, and white hairs. The white hairs form two parallel lines near the base, followed by a series of transverse stripes that are often interrupted in the middle.

Adult females measure 6–8 mm in length, while males are slightly smaller, at approximately 7.25 mm. The legs are relatively long; the fourth pair is nearly five times the length of the cephalothorax.

This species inhabits various grasslands, agricultural lands, and gardens in suburban areas. These spiders are typically found on the ground, often building webs amidst vegetation or in sheltered locations.

They are solitary hunters that roam at night to capture prey, relying on speed and camouflage rather than webs to secure food. During the day, they hide beneath rocks, among leaves, or within burrows.

H. holmerae engages in complex mating rituals; males often perform specific dances or vibrations to attract the attention of females. After mating, the female carries an egg sac attached to her spinnerets. Once the spiderlings hatch, they may ride on their mother's back for a short period.

TAXON

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Suborder: Araneomorphae
Infraorder: Entelegynae
Superfamily: Lycosoidea
Family: Lycosidae
Subfamily: Hippasinae
Genus: Hippasa Simon (1885)
Species: Hippasa holmerae Thorell (1895)

SYNONYMS

Hippasa holmerae sundaica Thorell (1895)
Hippasa jaihenensis Yin & Wang (1980)
Hippasa rimandoi Barrion (1981)
Hippasa sinsiloides Barrion, Barrion-Dupo & Heong (2013)

VERNACULAR NAME

Chinese (simplified): 猴马蛛 - 长疣马蛛
Chinese (traditional): 猴馬蛛 - 長疣馬蛛
English: Lawn wolf spider
Hong Kong: 猴馬蛛
Indonesia: Laba-laba embun
Java: Kemonggo lemah
Macao: 猴馬蛛
Taiwan: 長疣馬蛛
Thai: แมงมุมหมาป่าสนามหญ้า

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