assuming N. furcatus' range hasn't expanded. I like the way this serious shows the spider abdomen straight until it creates its egg sac.. when it becomes curved. Also, just an FYI this species' egg sac looks a lot like the ones created by Rhomphaea projiciens.

I just posted one that may help.

Thanks, but it looks like I was mistaken. Only the males are relatively unique in cross-section. The females have to be ID'd by epigyna, though there are differences in abdomen shapes that we can clue off of. This abdomen here has similarities to the shapes of several of the Neospintharus, so I don't think we're going to get a species without an epigynum shot.

dew drop spider and a Kleptoparasite?

However it doesn't come right out and say this genus has Kleptoparasites. Perhaps by not saying they are... it means this genus doesn't have Kleptoparasites?

Morphological phylogeny of cobweb spiders and their relatives (Araneae, Araneoidea, Theridiidae) INGI AGNARSSON*

The cobweb spiders, family Theridiidae, constitute one of the largest spider families, with over 2300 species in 79 genera distributed worldwide.

..Also, no other family includes as many kleptoparasites. Kleptoparasitic spiders occupy heterospecific webs to steal prey or silk. Argyrodes includes the most famous and conspicuous kleptoparasites, found worldwide in the webs of the largest known orb-weavers, Nephila and numerous other spiders The biology of the members of Argyrodes and their distribution among their host webs are areas of active research. Both sociality and most instances of kleptoparasitism typically entail ‘web sharing’, and the two types of behaviour may be phylogenetically related.

..‘Spiders of the genus Argyrodes (Theridiidae) are generally known as kleptoparasitic’ ‘Some species of Argyrodes (Theridiidae) can regularly be found in the webs of other spiders… Other Argyrode are free-living, some feed on spiders’. It has even been suggested that the expression of behaviour (either kleptoparasitism or free living araneophagy) is environmentally controlled, rather than showing a phylogenetic pattern (see Whitehouse et al., 2002).

...Levi’s synonymies, and continued treating Ariamnes and Rhomphaea (the most distinct nonkleptoparasitic Argyrodinae) as valid genera.

...The problem of explaining kleptoparasitism and araneophagy may lie in the terms themselves. Kleptoparasitism entails many components, one of which can be the consumption of spiders. Invasion of a foreign web is one feature that unites argyrodines (although secondarily lost). Spiders generally take any prey they can handle, and prey choice in those invaded webs was no doubt originally as general, including both items stuck in the web and the web’s host. Many extant species show such generalized behaviour (such as the basal Faiditus chickeringi) whereas others specialize either in eating the host or its prey. Thus, obligatory kleptoparasitism may represent the sppression of araneophagy in order not to kill a host that continues to provide food. Conversely, obligatory araneophagy in Ariamnes and Rhomphaea may represent the suppression of ancestral kletoparasitism.

..All known Faiditus are kleptoparasitic and, as in Argyrodes, males are often larger than females (Exline & Levi, 1962).

Neospintharus trigonum for this spider?

doesn't appear to have the split points at the end of the abdomen. I'm not sure though.

I'll do some looking on my own too.