Lycinus Frayjorge
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''Lycinus frayjorge'' is a
mygalomorph The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3,000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to t ...
spider of
Chile Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...
, named after its type locality: Parque Nacional Fray Jorge, LimarĂ­, Region IV (Coquimbo).Goloboff, Pablo A. "A revision of the South American spiders of the family Nemesiidae (Araneae, Mygalomorphae). Part 1, Species from Peru, Chile, Argentina, and Uruguay. Bulletin of the AMNH; no. 224." (1995). The female
spermathecae The spermatheca (pronounced : spermathecae ), also called ''receptaculum seminis'' (: ''receptacula seminis''), is an organ of the female reproductive tract in insects, e.g. ants, bees, some molluscs, Oligochaeta worms and certain other inver ...
are most similar to those of '' L. gajardoi'', which differs by the less numerous maxillary cuspules, the lighter
scopula ''Scopula'' is a genus of moths in the family Geometridae described by Franz von Paula Schrank in 1802. Species It has 705 species which are listed here alphabetically. A *'' Scopula ablativa'' (Dognin, 1911) *'' Scopula abolita'' Herbulot, ...
IV, and the presence of pseudopreening combs.


Description

*Female: total length ;
cephalothorax The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cepha ...
length , width ; cephalic region length , width ; fovea width ; medial ocular quadrangle length , width ; labium length , width ;
sternum The sternum (: sternums or sterna) or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major bl ...
length , width . Its cephalic region is short, wide and convex. Its labium possesses 1 cuspule. A serrula is absent and its sternum is reborded.
Chelicerae The chelicerae () are the arthropod mouthparts, mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as either articulated ...
: rastellum is formed by numerous small, short and blunt cusps. Its cephalothorax is yellowish-brown, with dark
striae Stretch marks, also known as striae () or striae distensae, are a form of scarring on the skin with an off-color hue. Over time, they may diminish, but will not disappear completely. Striae are caused by tearing of the dermis during periods of ...
, while its legs are a uniformly yellowish-brown colour and the dorsal abdomen is dark-brown, with a
chevron Chevron (often relating to V-shaped patterns) may refer to: Science and technology * Chevron (aerospace), sawtooth patterns on some jet engines * Chevron (anatomy), a bone * '' Eulithis testata'', a moth * Chevron (geology), a fold in rock la ...
as in '' L. epipiptus'', but almost hidden by a dark
pubescence Puberty is the process of physical changes through which a child's Human body, body matures into an adult body capable of sexual reproduction. It is initiated by hormone, hormonal signals from the Human brain, brain to the gonads: the ovary ...
and pigmentation.


Distribution and Behaviour

Only from its type locality, Region IV ( Coquimbo Region). They are found in a habitat similar to that described for '' Chaco socos'', at the side of a
ravine A ravine is a landform that is narrower than a canyon and is often the product of streambank erosion. Ravines are typically classified as larger in scale than gullies, although smaller than valleys. Ravines may also be called a cleuch, dell, ...
, from burrows closed with the typical double flap.


See also

*
Spider anatomy The anatomy of spiders includes many characteristics shared with other arachnids. These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedi ...
*
List of Nemesiidae species This page lists all described species of the spider family Nemesiidae accepted by the World Spider Catalog : A ''Amblyocarenum'' ''Amblyocarenum'' Simon, 1892 * '' A. doleschalli'' (Ausserer, 1871) — Italy (mainland, Sicily) * '' A. nuragicum ...
*
Regions of Chile Chile is divided into 16 regions (in Spanish language, Spanish, ''regiones''; singular ), which are the country's first-level administrative division. Each region is headed by directly elected Regional Governor (Chile), regional governor (''gober ...


References


External links

*
ADW entry
* Nemesiidae Spiders of South America Spiders described in 1995 Endemic fauna of Chile {{Nemesiidae-stub