Piranthus

{{Short description|Genus of spiders}}

{{Automatic taxobox

| taxon = Piranthus

| image = Piranthus sp..jpg

| image_caption = Piranthus sp.

| authority = Thorell, 1895

| diversity_link =

| diversity = 2 species

| type_species = Piranthus decorus

| type_species_authority = Thorell, 1895

| subdivision_ranks = Species

| subdivision =

• Piranthus casteti Simon, 1900 – India
• Piranthus decorus Thorell, 1895 – Burma

see text

}}

Piranthus is a genus of jumping spiders first described in 1895 by Tamerlan Thorell, who derived the name from Greek mythology.{{cite book| first=Tamerlan| last=Thorell| year=1895| title=Descriptive catalogue of the spiders of Burma| url=https://archive.org/details/descriptivespid00brituoft}} {{as of|2019|02}} this genus contains only two species.{{cite web |title=Gen. Piranthus Thorell, 1895 |work=World Spider Catalog |publisher=Natural History Museum Bern |url=http://www.wsc.nmbe.ch/genus/2890 |accessdate=2019-03-18}}

The first male was described in June 2020.Karunnappilli et al. 2020: The first described male of the Asian jumping spider genus Piranthus Thorell, 1895 (Araneae: Salticidae: Baviini)

These spiders are mostly black with some white pubescence on the sides of the cephalothorax. The longish abdomen has a dark median stripe in the middle of a wide light median band. The legs are reddish-brown with black rings and very short, with the first pair much more robust than the others. The palps of females are yellowish white and the female P. decorus is about {{convert|9|mm|in|frac=3}} long. Eugène Simon compared this genus with Padilla.{{cite book| last1=Murphy| first1=Frances| last2=Murphy| first2=John| year=2000| title=An Introduction to the Spiders of South East Asia| publisher=Malaysian Nature Society| location=Kuala Lumpur| page=286}}