The male spider is about 5.5mm long.

The male orb-weaving spider kills himself before the female has a chance to.

The palpi of male spiders serve as sexual organs.

The male spider is much smaller than the female, and unassumingly marked.

A female black widow is much more likely to deliver more venom than a male spider.

For all male spiders it is dangerous to seek a mate.

These conditions contribute to possible explanations for the sexual selection of body size in male spiders.

However, these large male spiders have long development times.