''Stenoterommata iguazu'' is a species of
mygalomorph spiders of
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 ...
, named after its type locality:
Iguazú,
Misiones
Misiones (, ''Missions'') is one of the 23 provinces of Argentina, located in the northeastern corner of the country in the Mesopotamia region. It is surrounded by Paraguay to the northwest, Brazil to the north, east and south, and Corrientes P ...
.
[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).] Females are distinguished from other species in the genus, except ''S. platense'', by the 2 + 2
spermathecae; from ''S. platense'', they are distinguished by the outer spermathecal lobe having a single receptaculum. Males are distinguished from other species, except ''S. platense'', by having a thin, well-
sclerotized embolus and the bulbal duct with an even curvature; from ''S. platense'', by the sudden tapering apical portion of the bulbal duct and the slightly smaller size.
Description
*Male: 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 . Labium length , width . Sternum length , width . Its labium has no cuspules. Its sternal sigilla are small, oval and shallow; its sternum with a clear reborder.
Chelicerae: rastellum with only long, thin and attenuate
setae
In biology, setae (singular seta ; from the Latin word for "bristle") are any of a number of different bristle- or hair-like structures on living organisms.
Animal setae
Protostomes
Annelid setae are stiff bristles present on the body. Th ...
. Cheliceral
tumescence is present, covered with hairs.
*Female: total length ; cephalothorax length , width ; cephalic region length , width ;
fovea
Fovea () (Latin for "pit"; plural foveae ) is a term in anatomy. It refers to a pit or depression in a structure.
Human anatomy
*Fovea centralis of the retina
* Fovea buccalis or Dimple
* Fovea of the femoral head
* Trochlear fovea of the fr ...
width ; labium length , width ; sternum length , width . Its cephalic region is convex with the fovea slightly procurved. The labia have 3 cuspules. Its sternal sigilla are small, oval, shallow and marginal; sternum is rebordered. Chelicerae: rastellum formed by thick setae; colour similar to ''S. Platense''.
Distribution
Northern Misiones Province, Argentina.
See also
*
Spider anatomy
*
Iguazú National Park
The Iguazú National Park ( es, Parque Nacional Iguazú) is a national park of Argentina, located in the Iguazú Department, in the north of the province of Misiones, Argentine Mesopotamia. It has an area of .
History
The area of the park w ...
References
External links
ITIS entryADW entryEOL entryBioLib entry
{{DEFAULTSORT:Stenoterommata iguazu
Pycnothelidae
Spiders of Argentina
Spiders described in 1995