Females of this species are similar to S. costaricensis and S. costalis Cresson in the clypeus with a sinuous distal margin medially, ocelli unmodified (i.e., not enlarged as in S. lousiae), and the body with coarse and dense punctures.  It can be separated from S. costaricensis by the first tergum with a complete yellow band and second tergum with at least a lateral band; such maculations are absent or reduced in S. costaricensis.  It can be distinguished from S. costalis by the sixth tergum with a complete yellow band and the lateral margin of the axilla not distinctly extending beyond the line created by the mesoscutum and mesoscutellum.  In S. costalis the sixth tergum is immaculate and the lateral margin of axilla distinctly extends beyond the line created by the mesoscutum and mesoscutellum.

This is species is only known from the type locality in northern Colombia.

This species was named after vallenato, a type of folk music that originated in Valledupar, the city where the holotype was collected.  Today, vallenato is the flagship music of the Caribbean region of Colombia.

http://www.tandfonline.com/doi/full/10.1080/00222933.2012.738835