Thirty six species including three tree dwelling species have been identified.
Males leave their burrows and wander in search of females, particularly during summer and autumn.
The abdomen is usually dark plum to black and not patterned. Males often have a ventral spur or swelling midway along the second leg which is pointed in Atrax and blunt or absent in Hadronyche . Spinnerets usually obvious, finger-like and at the end of the abdomen. The eyes of funnel-webs are closely grouped. Bite Bites are most prevalent during summer and autumn when males leave the burrows in search of females.