Anelosimus domingo, : Levi, 1963

Agnarsson, Ingi, 2006, A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars, Zoological Journal of the Linnean Society 146 (4), pp. 453-593: 471

publication ID 10.1111/j.1096-3642.2006.00213.x

persistent identifier

treatment provided by


scientific name

Anelosimus domingo



Three species, A. jabaquara   , A. domingo   and A. dubiosus ( Keyserling, 1891)   , belong to this welldefined group. The females are nearly indistinguishable from other Anelosimus   externally, but internal female genitalia, and male genitalia, offer easy diagnosis. The clade is supported by four unreversed palpal synapomorphies: finger-like apophysis on the theridiid tegular apophysis (54 -1, Fig. 7A, K View Figure 7 ), whiplike embolus spiral (60 -1, Figs 7A, B, E, F, K, L View Figure 7 , 9B, C, E View Figure 9 ), cup-shaped Eb apophysis (81 -1, Figs 7B, E, L View Figure 7 , 9E View Figure 9 , 11D View Figure 11 , 13E View Figure 13 ), and embolus supported by Eb apophysis (79 -2, Fig. 7B, E, F, L View Figure 7 ). Having sticky silk in the web (142 -0) may be an additional synapomorphy, but absence of sticky silk in most Anelosimus   webs remains doubtful (see below). All three species are social and adult females at least sometimes share webs. Anelosimus domingo   is a typical social species with permanent colonies and strongly biased sex ratio.