Bannana
Bannana is a genus of goblin spiders (family Oonopidae) native to Xishuangbanna prefecture, Yunnan Province, China, where it lives in the leaf-litter of tropical rainforest. There are two known species: Bannana crassispina and B. parvula, both described in 2015. Individuals are pale yellow and unpatterned, and range from around 1.0 to 1.8 mm in body length, with females being slightly larger than males. The eyes are reduced or entirely absent. Known only from a nature reserve in Xishuangbanna, "Bannana" belongs to a group of Asian goblin spiders known as the ""Dysderoides" complex", that ranges from China to Pakistan  and south to Indonesia. Description. Species of "Bannana" are generally similar in overall appearance, although "B. parvula" is smaller. The body color is yellow, without pattern. Eyes are absent or highly reduced, visible only as remnants in "B. crassispina". The cephalothorax or prosoma is broadly oval when viewed from above, and the abdomen or opisthosoma is somewhat oval-shaped, and rounded at the rear. A strongly hardened plate (scutum) covers the upper abdominal surface. "B. crassipina" males are around 1.5 mm in body length (tip of the cephalothorax to end of the abdomen), while females are slightly larger at 1.8  mm. "B. parvula" are smaller, with males and females measuring around 1.0 and 1.1 mm, respectively. In addition to size, male "B. crassispina " can be distinguished from male "B. parvula" by the presence of two large bristles (setae) on the palpal tibiae (the penultimate segments of the pedipalps) and two rows of setae on the sternum (the ventral portion of the cephalothorax). Females can be distinguished by a relatively smaller abdominal scutum in "B. crassispina". Distribution and habitat. "Bannana" spiders are known from Menglun Nature Reserve, in Xishuangbanna's Mengla County, where they are found in leaf litter of tropical  rainforest at elevations around above sea level. Specimens have been collected by pitfall trapping and by manually sorting through litter. Etymology. The genus name "Bannana" is derived from the last few letters of the word "Xishuangbanna". The specific name "crassispina" is derived from Latin "crassus" ("thick") and "spinus" ("bristle"), referring to two thick bristles on the tibiae of male pedipalps, while the specific name "parvula", from Latin "parvus" ("small"), refers to the smaller size of this species. Both species, as well as the genus, were named in 2015 by Chinese biologists Yanfeng Tong and Shuqiang Li. Classification. "Bannana" spiders are  in the family Oonopidae, a large family of spiders with over 1,500 species worldwide. Within the Oonopidae, "Bannana" is placed in a lineage called the ""Dysderoides" complex", which also contains the genera "Dysderoides", "Himalayana", and "Trilacuna", and spans a large part of Asia from Pakistan to China and south to Sumatra. The ""Dysderoides" complex" is united by shared similarities of the mouth parts and male reproductive structures. Morphologically, "Bannana" is very similar to "Dysderoides", which also has reduced eyes.