Male?
Probably Rhomphaea (a Theridiid that used to be Argyrodes). These Theridiids scavenge from the webs of others spiders. This one is a relatively large spider, about 12mm in body length, and was found in the web of the orb weaver Cyrtophora exanthematica. The genus Rhomphaea was eerected by L. Koch in 1872.
Photo: Robert Whyte
Female facing
Photo: Robert Whyte
Female from above
Photo: Robert Whyte