Bymainiella lugubris is a species of funnel-web spider in the Hexathelidae family.

It was described in 1978 by Australian arachnologist Robert Raven.

[1][2] The species occurs in New South Wales in alpine, snow gum woodland and open sclerophyll forest habitats.

The type locality is the New England Plateau.

[2] The spiders are terrestrial predators that build ground webs.