Piranthus is a spider

Spider

Spiders are air-breathing arthropods that have eight legs, and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms...

 genus of the Salticidae family (jumping spiders).

Simon compares this genus with Padilla

Padilla (spider)

Padilla is a spider genus of the Salticidae family . Almost all described species are endemic to Madagascar, with one species only occurring on Java....

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Description

The female P. decorus is about 9 mm long. The spider is mostly black, with some white pubescence on the sides of the cephalorthorax, and a dark median stripe in the middle of a wide light median band on the longish abdomen. The female palps are yellowish white. The legs are very short, with the first pair much more robust. They are reddish-brown with black rings.

Species

• Piranthus casteti Simon
  Eugène Simon
  Eugène Simon was a French arachnologist. His many taxonomic contributions include categorizing and naming many spiders, as well as creating genera such as Anelosimus, Psellocoptus and Phlogius....
  
  , 1900 — India
  India
  India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
  
  
• Piranthus decorus Thorell, 1895 — Burma