SearchIntroductionBackgroundChecklistCollectionsEditorial CommitteeStatistics
Dansk English 
Xerolycosa nemoralis  (Blackwall, 1861)
≤ 1900   1901-1979   1980-2005   2006 ≤
Size: Female ? mm; male ? mm.

Genus: Xerolycosa Dahl, 1908. Characters of genus: The two European species in Xerolycosa resemble Pardosa saltans/lugubris somewhat in general appearance as the share similar median bands on the carapace. However, the heads differ in shape as the sides are not vertical in however, as Xerolycosa has gradual rounded sides as opposed to the vertical sides in Pardosa. Lateral bands are only present on the rear half of the carapace and are composed of light hairs that sometimes are partially or wholly rubbed off. Spiders of the Alopecosa also have broad median bands on the carapace but are larger and more robust, especially the legs are much stouter. Tarsi of legs each with four trichobothtria alternating in length.

Family: Lycosidae Sundevall, 1833 (Wolf Spiders). Characters of family: The lycosids belong to the group of araneomorph, ecribellate spider families having 8 eyes and 3 tarsal claws. The eyes are all dark in colour and arranged in three rows in a characteristic fashion. The anterior row has four small eyes set in a straight or slightly curved row, the second row has two large eyes further up on the on the vertical front, and the posterior row has two medium-sized eyes on the sides of the head which can be more or less steep sided. There are only few additional diagnostic characters of importance for the family, i.e. the lack of a retrolateral tibial apophysis on the male palp and that the female of many species carries her egg sack attached to the spinners. The carapace is longer than wide with the head region narrowed and high. It is usually densely covered with hairs and often with longitudinal median or lateral bands or both. In some genera there are characteristic bars in the median band or elongate U-, Y-shaped marks. The sternum is oval to shield shaped (scutiform). The chelicerae are relatively strong with toothed cheliceral furrow and prominent lateral condyle (boss). The labium is a wide as long, about half the length of endites. Legs are spinose and provided with 3 tarsal claws, usually with scopulae for adhesion. The second segments of the legs (trochanters) are notched. The abdomen is oval, always covered with dense hairs. There is no colulus in front of the spinners. The tracheal spiracle is situated just in front of the spinners. The epigyne is well sclerotized median septum which may be large and plate-like. The male palp is only rarely provided with a tibial apophysis. The tip of the male palp may have one or more claws.
Male
Male
Male
Male
×
Detaljer
UTM
Klik på kortet for at forstørre - dobbeltklik for at formindske
Danish Spiders from A to Z