Padilla javana is the only species of jumping spider

Jumping spider

The jumping spider family contains more than 500 described genera and about 5,000 described species, making it the largest family of spiders with about 13% of all species. Jumping spiders have some of the best vision among invertebrates and use it in courtship, hunting and navigation...

 in the genus 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....

which occurs on Java

Java

Java is an island of Indonesia. With a population of 135 million , it is the world's most populous island, and one of the most densely populated regions in the world. It is home to 60% of Indonesia's population. The Indonesian capital city, Jakarta, is in west Java...

, with most others found in Madagascar

Madagascar

The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

, and one in China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

.

Description

The cephalothorax

Cephalothorax

The cephalothorax is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. The word cephalothorax is derived from the Greek words for head and thorax...

is flat and long, with the thorax much longer than the head part. It is of a leathery dark brown, with the cephalus and the sides black. On the thorax there is a broad median yellow stripe, edged with yellow hairs. The abdomen is smooth and black with a vague median stripe. The front legs are very robust and dark, with yellowish tips. All other legs are pale yellow. The male lacks the characteristic process of the chelicera found in most other males of the genus Padilla.