Sumakuru Maddison

Maddison, Wayne P., 2016, Sumakuru, a deeply-diverging new genus of lyssomanine jumping spiders from Ecuador (Araneae: Salticidae), ZooKeys 614, pp. 87-96 : 89

Taxon classification Animalia Araneae Salticidae

Sumakuru Maddison gen. n.

Type species.

Sumakuru bigal Maddison, sp. n.

Etymology.

From the Quechua sumak, "great, marvellous" and uru, “spider”. The same root sumak is the source of the name of the volcano Sumaco, from whose southeastern slopes the type species is known. Sumakuru is to be treated as grammatically masculine.

Diagnosis.

Delicate, pale, and long legged as in other lyssomanines, but with a distinctive palp in which the smoothly arching embolus is connected to the tegulum by a thin sclerite and twisted hematodocha (Fig. 3 arrow). The carapace is narrow, but higher than in Chinoscopus ; the male chelicerae are simple and relatively short, not long and diverging as in many species of Lyssomanes . While the form of the embolus is unique among known lyssomanines, the other features cited are not fully distinctive, as some Lyssomanes have a narrow carapace and short male chelicerae. It is unfortunate that we do not yet have morphological synapomorphies to distinguish each of Sumakuru , Lyssomanes and Chinoscopus from one another. However, the molecular data strongly support the distinction of Sumakuru from other lyssomanines, as discussed below. Some specific sites in the alignments submitted to Dryad at which Sumakuru is unique are: at site 562 of the 28S alignment, Sumakuru has T instead of G or A; site 861 of 28S, A instead of G; site 589 of 16SND1, A instead of T (thus rendering the 10th amino acid of ND1 translated as asparagine instead of either isoleucine or valine). Comments on monophyly are given under "Phylogeny and Discussion".