Bulbus with neckband-like chitinisation, ventrally with 2 protuberances. Spermaporus small. Prosoma light brown, highest point of prosoma brighter, almost white. Male: with a pair of dark brown, egg-shaped spots behind eyes. Sternum yellow-white. Chelicerae yellow-brown. Legs yellow-white, I and II with spines, III and IV without. Opisthosoma yellow-white, dorsal scutum shiny light brown, with fine radial stripes, ventral scutum pale yellow.
Probably occasionally mixed up with I. velox (Saaristo 2010: 120).
This species of Asian origin is not native to Europe (alien species). It had been introduced to Europe at least once and could establish.
Hänggi A, Bobbitt I, Kranz-Baltensperger Y, Bolzern A, Gilgado J D (2021) Spiders (Araneae) from Swiss hothouses, with records of four species new for Switzerland. Arachnologische Mitteilungen 62: 67-74