| 词条 | Chaco tigre |
| 释义 |
| name = Chaco tigre | image = | image_caption = | image_width = 250px | regnum = Animalia | phylum = Arthropoda | classis = Arachnida | ordo = Araneae | subordo = Mygalomorphae | familia = Nemesiidae | genus = Chaco | species = C. tigre | binomial = Chaco tigre | binomial_authority = Goloboff, 1995 | range_map = | range_map_width = 250px | synonyms = }} Chaco tigre is a species of mygalomorph spiders of Chile, named after its type locality: Quebrada El Tigre, Petorca, Region V (Valparaiso Region).[1] This species differs from C. socos by its spermathecae having a shorter duct and a more globose fundus, and by constructing a thin door for its burrow; the general colouration is brownish, while C. socos is more grayish coloured. DescriptionThe male has a total length of {{convert|11.97|mm|in}}; and a cephalothorax length of {{convert|4.67|mm|in}} and width of {{convert|3.65|mm|in}}. The labium length is 82% of its width. The sternum width is 82% of its length. The labium possesses six small cuspules. Its posterior sternal sigilla is well marked. Its cephalothorax and legs are yellowish brown, while the legs carry darker spots; the abdomen is lighter, with some brown coloring.[1] The female has a total length of {{convert|14.43|mm|in}}; a cephalothorax length of {{convert|8.1|mm|in}} and width of {{convert|6.55|mm|in}}; and a cephalic region length of {{convert|5.03|mm|in}} and width of {{convert|3.93|mm|in}}. The cephalic region's width is 77% of the cephalothorax's width. The labium length is 52% of its width. The sternum width is 75% of its length. The labium possesses six large cuspules. A serrula is apparently absent. The colour is the same as in the male.[1] Distribution and behaviourThis species has been collected in places of inclined, sandy or stony soil. It lives in burrows closed with a single door (unlike Chaco obscura and C. tucumana). The door is thin, on which "growth rings" are sometimes visible. The tube of the burrow is often prolonged with silk and earth in the upper portion. The smooth, well-compacted walls are covered with little silk. It is found in Región Metropolitana and Region V. See also
References1. ^1 2 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). External links
3 : Nemesiidae|Spiders of South America|Spiders described in 1995 |
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