| Xerolycosa nemoralis | |
|---|---|
 | |
| Female | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Lycosidae |
| Genus: | Xerolycosa |
| Species: | X. nemoralis |
| Binomial name | |
| Xerolycosa nemoralis | |
| Synonyms [1] | |
| |
Xerolycosa nemoralis, or the burnt wolf spider, [2] is a species of wolf spider found from western Europe eastwards to the Pacific.
The male has swollen palpal bulbs which are as long as they are wide at the base. The grooves on the genital shield are wider than they are long. The prosoma is brown, with a bright median stripe, which has parallel margins with white hair. The sternum is dark brown and the legs are a uniform dark brown, almost black. The opisthosoma is dark brown with a slightly darker cardiac spot. [3]
The males are 4.5–5.7 millimetres (0.18–0.22 in) in length, the larger females 5–7.5 mm (0.20–0.30 in). [3]
The spider lives in dry litter and bark in sunny coppiced areas or clearings in woods, on stony chalk grassland with a short sward, on burnt heathland (up to approximately four years after the heath has been burnt) or bare patches of ground in older heathland. X. nemoralis has occurred in large numbers in sparsely vegetated man-made sites, such as railway ballast, almost to the exclusion of other wolf-spiders. [4] In mainland Europe, it can be found on the sunny edges of coniferous forest up to 1800 m above sea level. [3] Female Xerolycosa nemoralis are known to excavate shallow depressions in soil. [5]
In Britain, X. nemoralis is active from late March through the summer to mid-September. The males emerge earlier than the females and the last specimens in Autumn are females. [4]
X. nemoralis is widely distributed in Europe from south eastern England [4] east to Russia. [6] And across the Palearctic [1] to Kamchatka and Honshu, south as far as Azerbaijan. [5]
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Langelurillus rufus is a species of jumping spider in the genus Langelurillus that lives in Ethiopia, Kenya and Tanzania. The male was originally described by Roger de Lessert in 1925 and named Langona rufa while male and female samples were named Langelurillus difficilis by Wanda Wesołowska and Anthony Russell-Smith in 2000. The species were combined with the current name in 2012. The spider is small, with a brown carapace that is between 1.9 and 2.0 mm long and an abdomen between 19 and 2.4 mm long. The female can be identified by the orange patches on its carapace. The spider has an abdominal pattern that helps distinguish the species from the related Langelurillus manifestus, which has a brown design on a yellowish abdomen with a brown design while Langelurillus rufus has a yellow design on a brown abdomen.
Langelurillus manifestus is a species of jumping spider in the genus Langelurillus that lives in Tanzania. It was first described in 2000 by Wanda Wesołowska and Anthony Russell-Smith. The spider is small, with a carapace that is between 2.1 and 2.5 mm long and an abdomen between 2.0 and 2.2 mm long. The female carapace is lighter than the male and has a pattern of irregular patches, which may also be found in some examples of the female abdomen. The male abdomen is lighter and has a fawn streak down the middle. The legs are brown, the female having dark rings on its legs. It is similar to other related species, particularly Langelurillus rufus, but can be distinguished by the male's larger size and lighter coloration. The female has an oval epigyne that leads to seminal ducts that are shorter than Langelurillus rufus but longer than Langelurillus squamiger.
Langelurillus minutus is a species of jumping spider in the genus Langelurillus that lives in Namibia and Zimbabwe. It was first described in 2011 by Wanda Wesołowska and Meg Cumming. The spider is small, with a cephalothorax that is between 1.8 and 2.3 mm long and an abdomen between 1.5 and 3.9 mm long. The male is noticeably smaller than the female, which is reflected in the species name. The species is generally brown, but has indistinct patches on its abdomen and orange or orange-yellow legs. The male has a very convex palpal bulb and the female an epigyne with a large pocket and compact multi-chambered receptacles.
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Langelurillus primus is the type species for the genus Langelurillus. It is a jumping spider that is endemic in Kenya first described in 1994 by Maciej Próchniewicz, the species name denoting its position as first to be identified. The spider is small, with a orange-brown or dark brown carapace that is between 2.2 and 2.8 mm long and a dark yellow, greyish-brown or yellowish-green abdomen between 1.95 and 3.5 mm long. The female is longer than the male. The abdomen often has a pattern of spots. It has hairy legs. The male has three tibial apophyses, or spikes, a short pointed embolus and a large ovoid tegulum. The female has a very small epigyne that has a single pocket. The species can be distinguished from the related Langelurillus kenyaensis and Langelurillus krugeri by the design of the female copulatory organs, particularly the length of the seminal ducts.