It is hard to tell externally from other spiders as it is similar in size to others in the genus and, like many others, lacks a distinctive pattern on its body.

The female has a small window made of membrane in the middle of its epigyne, which is narrower than that found in other species in the genus.

Chalcoscirtus picinus is a jumping spider that was first described by Wanda Wesołowska and Antonius van Harten in 2011.

[4] The species is named for a Latin word that can be translated "black" and refers to the colour of the spider's body.

[5] In Wayne Maddison's 2015 study of spider phylogenetic classification, the genus Chalcoscirtus was placed in the tribe Euophryini.

[9] Chalcoscirtus picinus is a small spider that is typical for the genus, both in size and in the lack of patterns on its body.

The abdomen is a slightly swollen oval that is blackish-grey and covered in fine brown hairs.

The copulatory openings lead to very short insemination ducts, initially marked with very small levels of sclerotisation.

[11] Some live on the Arabian Peninsula, including Chalcoscirtus picinus, which is endemic to the United Arab Emirates.