''Hapalotremus martinorum'' is a species of

tarantula Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. , 1,040 species have been identified, with 156 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although ...

in the subfamily

Theraphosinae The Theraphosinae are a large subfamily of Mygalomorphae spiders in the family Theraphosidae found in the Neotropical realm. Genera The subfamily Theraphosinae includes these genera: * '' Acanthoscurria'' * '' Aenigmarachne'' * ''Aphonopelma' ...

native to the High Yungas of

Salta province Salta () is a province of Argentina, located in the northwest of the country. Neighboring provinces are from the east clockwise Formosa, Chaco, Santiago del Estero, Tucumán and Catamarca. It also surrounds Jujuy. To the north it borders Boliv ...

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

. It was first described in a 2015 publication by Patricio E. Cavallo and Nelson Ferretti.

Characteristics

''Hapalotremus martinorum'' differs from all other congeners by the colour pattern of live specimens. Males differ in the male

palpal bulb The two palpal bulbs – also known as palpal organs and genital bulbs – are the copulatory organs of a male spider. They are borne on the last segment of the pedipalps (the front "limbs" of a spider), giving the spider an appearance often descr ...

morphology, with thickened and less curved embolus having a blunt sub-apical keel and less-developed apical keel. Females differ in the shape of the

spermatheca The spermatheca (pronounced plural: spermathecae ), also called receptaculum seminis (plural: receptacula seminis), is an organ of the female reproductive tract in insects, e.g. ants, bees, some molluscs, oligochaeta worms and certain other ...

e, with the lateral bases more pronounced than the superiors and the upper edge more rounded. Specimens inhabit short burrows or crevices under stones in high cloud forests.

References

Theraphosidae Spiders of Argentina Spiders described in 2015 {{Theraphosidae-stub