- filtered for Portugal (Azores)
Images and Species Descriptions
Text and photographs © 2011 Jørgen Lissner
The Spiders of Europe and Greenland
Family: Linyphiidae (Line Weaving Spiders)
Biology: The Linyphiidae is the worlds second largest spider family encompassing ca. 4320 species in more than 570 genera. The highest diversity is found in the northern temperate regions. In these regions as well as in the arctic regions spiders of this family dominates the spider fauna. The jumping spiders (Salticidae) is an even larger family but they generally require warmer conditions than the linyphiids and for this reason they are less well represented in the cooler regions. Linyphiids are found worldwide in all terrestrial biotopes and is perhaps the most widely distributed spider family. They range in size from very small to medium (1-8.5 mm body size). Most species are found at ground level but they occupy a very wide array of habitats. The members of the family build a sheet web sometimes dome shaped. The web has no retreat and the spider always hang inverted below the sheet. Larger species in particular sometimes add irregular vertical snares acting both as sheet suspension strands and barrage balloon wires impeding the flight of insects. When insects strike the vertical snares they fall down on the sheet and the spider rush to bite the prey through the sheet web. Many species disperse by air and the phenomenon of ballooning is very noticeable in this family when very dense populations try to balloon at the same time. The spiders climb up high in the vegetation and point the spinners toward the sky. In this position they let out some strands of silk and eventually the wind will lift the spiders up in the air. Often they only manage to fly a short distance but they will keep trying sometimes resulting in a layer of shimmering silk covering the vegetation. Ballooning takes place usually in late summer. Ballooning may result in spiders literally raining from the sky. Erigone atra is a very common aeronaut in late summer in some areas and on several occasions I have experienced specimens landing in my hair at short intervals, for example while I was sitting in my garden.
Characters of family: The linyphiids belong to the group of ecribellate spider families having 8 eyes and 3 tarsal claws. The eyes are arranged in 2 rows of 4, usually heterogeneous in size with the anterior medials smaller than the rest. Frequently, the eyes are ringed with black, this being most noticeable in species with lighter coloured carapaces such as many species of the Linyphiinae subfamily. Some species adapted to dark habitats have the eyes much reduced, sometimes being very minute in size or only evidenced by pale markings under the integument (e.g. Porrhomma rosenhauri). The carapace is highly variable especially in the smaller species belonging to the Erigoninae subfamily. Males of this large subfamily frequently have the frontal region modified into strangely formed lobes or bear other types of protuberances some of which may have tufts of hairs. Some species have the carapace punctured with pits (see images of Lophomma punctatum). The males may also have sulci (grooves) running backwards from the posterior eyes. The chelicerae do not possess a lateral condyle (boss at base of chelicer). The outer side of the chelicerae have horizontal stridulating ridges visible in many species. Such ridges only occur scattered in other spider families (see for example images of ridges in Metellina stridulans of the Tetragnathidae). The labium is strongly rebordered as in the Nesticidae, Araneidae, and Tetragnathidae. The endites are usually parallel. Legs are slender and provided with spines. The number of spines on the legs is an important character for species identification when this is undertaken using the stereomicroscope. The abdomen is nearly always longer than wide sometimes with a pattern (Linyphiinae in particular) and sometimes mainly uniformly coloured, very often blackish (Erigoninae in particular). Some species posses an abdominal scutum as for example some members of the Ceratinella genus. The epigynes are variable, sometimes simple as in the Erigoninae or provided with a scapus as often seen in the Linyphiinae. The male palp often possesses an U-shaped paracymbium. The family was earlier divided in to two subfamilies, which sometimes were elevated to family status: the Linyphiidae and Erigonidae (also known as Micryphantidae). The Linyphiidae was characterized by not having tibial apophyses on the male palp, by having a claw on the female palp in most species, and by having two dorsal spines on tibia IV or if only one spine present there was one short spine on metatarsi I and II. The Erigonidae was characterized by having at least one tibial apophyses on the male palp, by lacking a claw on the female palp, and by having just a single dorsal spine on tibia IV and with the metatarsi spineless, or all spines lacking altogether. However, the family is now divided in to seven subfamilies, the Dubiaraneinae, Erigoninae, Ipainae, Linyphiinae, Micronetinae, Mynogleninae, and Stemonyphantinae. Consult recent literature or Wikipedia for lists of subfamily genera. See also Linyphiid Spiders Of The World by Andrei Tanasevitch and LinyGen: Linyphioid Genera of the World (Pimoidae and Linyphiidae) by Gustavo Hormiga, Dimitar Dimitrov, Jeremy A. Miller and Fernando Alvarez-Padilla.
Genus: Centromerus Dahl, 1886
Characters of genus: Legs fairly short and stout (Locket & Millidge 1953). Metatarsi I and II with a small dorsal spine. Metatarsus IV without a trichobothrium. Tibia I sometimes with a prolateral spine. Tibia IV with one or two dorsal spines. Epigyne with a scape in most species.
Centromerus sylvaticus (Blackwall, 1841)
Range: Austria, Belarus, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France (Mainland), Germany, Great Britain (Channel Islands), Great Britain (Mainland), Greece (Mainland), Hungary, Ireland, Italy (Mainland), Latvia, Liechtenstein, Lithuania, Macedonia, Moldova, Netherlands, Norway (Mainland), Poland, Romania, Russia (Central European), Russia (Eastern European), Russia (Northern European), Russia (NW. European), Russia (Southern European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Holarctic (Platnick 10.0).
Female.
Female.
Male.
Male.
Male.
Male.
Male.
Genus: Diplocephalus Bertkau, 1883
Characters of genus: Male head elevated in to a variety of lobes (Locket & Millidge 1953). Tibiae I-II with two spines, III-IV with just one spine (spines sometimes reduced or absent in males). Metatarsi longer than tarsi: leg I: 1.2-1.3 times, leg IV: 1.5-1.6 times (Locket & Millidge 1953).
Diplocephalus graecus (O. P.-Cambridge, 1872)
Range: Belgium, Bulgaria, France (Corsica), France (Mainland), Great Britain (Mainland), Greece (Mainland), Italy (Mainland), Portugal (Mainland), Romania, Spain (Balearic Islands), Spain (Mainland) (van Helsdingen 2009.1). Global range: Southern, Central Europe, North Africa (Platnick 10.0).
Genus: Erigone Audouin, 1826
Characters of genus: Edges of carapace strongly dentate in males, less so in females. Male head domed, but not raised in to a lobe. The chelicers are robust and furnished with warts and teeth anteriorly being more strongly developed in males than in females. Tibiae I-III with two spines, IV with just one. Metatarsi slightly longer than tarsi: leg I: 1.3-1.4 times, leg IV: ca.1.6 times (Locket & Millidge 1953). Male palp with characteristic large ventral patellar apophysis at the distal end. Palpal femur often with ventral knobs and teeth along length.
Erigone dentipalpis (Wider, 1834)
Range: Andorra, Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France (Corsica), France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Greece (Mainland), Greece (North Aegean Islands), Hungary, Ireland, Italy (Mainland), Latvia, Liechtenstein, Lithuania, Macedonia, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Azores), Portugal (Mainland), Romania, Russia (Central European), Russia (Eastern European), Russia (Kaliningrad Region), Russia (Northern European), Russia (NW. European), Russia (Southern European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Canary Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Holarctic (Platnick 10.0).
Erigone marina L. Koch, 1882
Range: Spain (Balearic Islands) (van Helsdingen 2009.1). Global range: Mallorca (Platnick 10.0).
Genus: Gonatium Menge, 1868
Biology: This genus has been reviewed by Millidge (1981). It is possible to recognise the members by the following combination of somatic characters: leg spination, presence of a tricobothrium on metatarsus IV, value of Tm I, and by the way the tarsal claws are pectinated (see description below). The genus is, however, also defined by the structure of the genitals which share characters thought to be derived (see Millidge (1981) for details).
Characters of genus: The species range in size from 2.0-3.7 mm. The cephalothorax and legs are bright orange, orange red or reddish brown. The male head carries no lobe but is slightly raised. Sternum at least as wide as long with coxae IV widely separated. Legs fairly long and slender. Leg spines are short, shorter and weaker in males than in females. Males have tibia I and to a lesser degree tibia II curved and swollen distally. They are furnished ventrally with many long hairs or bristles. Also metatarsi I and II and femora I and II are provided with many short spines or bristles ventrally. There is a single spine on each tibia in both sexes. All metatarsi with a trichobothrium. Tm I range from 0.75-0.95 (Millidge 1981). The tarsal claws are pectinated, consisting of narrow, needle-like teeth. The pectination is different in almost all other groups of spiders with pectinate claws (Millidge 1981). Abdomen globular, often reddish with four sigilla dorsally. There is no scutum. The male palpal femur is swollen in some species. The epigynes of all Gonatium species have the same general appearance, and depending on the number of species at a given locality specimens may be identifiable with a lens.
Gonatium ensipotens (Simon, 1881)
Range: France (Mainland), Germany, Italy (Mainland), Portugal (Mainland), Spain (Balearic Islands), Spain (Mainland) (van Helsdingen 2009.1). Global range: Southwestern Europe (Platnick 10.0).
Genus: Lepthyphantes Menge, 1866
Biology: Due to the high number of species in this genus (formerly almost 400) many former Lepthyphantes species have been grouped in to new genera mainly based on small details in the copulatory organs. Saaristo & Tanasevitch (1996) limit the genus to only five species of which only two are European, but this is apparently not followed by Platnick.
Characters of genus: Medium to large linyphiids ranging form 2.5 to 4.5 mm body length (Saaristo & Tanasevitch 1996). Legs clearly annulated in European species. Tm IV without trichobothrium. Abdomen with a distinct pattern, usually composed of broad black transverse markings formed as bars, bands or chevrons on a grey background. Abdomens may be dotted with some whitish spots. Males are characterized by the sickle-shaped embolus with tight sulcus and large carina (not visible with a hand lens). Epigynes wit large scape arising from the inside of the epigynal cavity. Note that there is some disagreements on the delineation of the genus. The genus description here is based on a narrow conception as given by Saaristo & Tanasevitch (1996).
Lepthyphantes balearicus Denis, 1961
Range: Spain (Balearic Islands) (van Helsdingen 2009.1). Global range: Balearic Is (Platnick 10.0).
Genus: Lessertia Smith, 1908
Lessertia dentichelis (Simon, 1884)
Range: Austria, Belgium, Bulgaria, Czech Republic, Denmark, France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Ireland, Italy (Mainland), Italy (Sardinia), Netherlands, Poland, Portugal (Azores), Portugal (Madeira), Portugal (Mainland), Russia (Eastern European), Slovakia, Spain (Balearic Islands), Spain (Canary Islands), Spain (Mainland), Sweden, Switzerland (van Helsdingen 2009.1). Global range: Europe, Canary Is, Madeira, Canada, New Zealand (Platnick 10.0).
Palp.
Female.
Female.
Female.
Genus: Linyphia Latreille, 1804
Linyphia triangularis (Clerck, 1757)
Range: Andorra, Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France (Corsica), France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Greece (Mainland), Hungary, Ireland, Italy (Mainland), Latvia, Liechtenstein, Lithuania, Macedonia, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Mainland), Romania, Russia (Central European), Russia (Eastern European), Russia (Kaliningrad Region), Russia (Northern European), Russia (NW. European), Russia (Southern European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Palearctic, introduced in USA (Platnick 10.0).
Female.
Male.
Male.
Male.
Female.
Female.
Male.
Male.
Male.
Male.
Female.
Female venter.
Female.
Female.
Female.
Genus: Meioneta Hull, 1920
Characters of genus: Posterior eyes of approximately similar size or medians larger than laterals (Locket & Millidge 1953). Tm I = ca. 0.20-0.30. Some species possess lateral spines on Tibia I and II. Without a trichobothrium on metatarsus IV. Meioneta share some morphological traits with Agyneta (see genus description for Agyneta).
Meioneta rurestris (C. L. Koch, 1836)
Range: Andorra, Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France (Corsica), France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Hungary, Ireland, Italy (Mainland), Italy (Sicily), Latvia, Liechtenstein, Lithuania, Macedonia, Malta, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Azores), Portugal (Mainland), Romania, Russia (Central European), Russia (Eastern European), Russia (Kaliningrad Region), Russia (Northern European), Russia (Novaya Zemlya)?, Russia (NW. European), Russia (Southern European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Palearctic (Platnick 10.0).
Male.
Male.
Male.
Female.
Female.
Female.
Female.
Female.
Female.
Male.
Male.
Female.
Female.
Female.
Genus: Microctenonyx Dahl, 1886
Microctenonyx subitaneus (O. P.-Cambridge, 1875)
Range: Austria, Belgium, Bulgaria, Czech Republic, Denmark, France (Corsica), France (Mainland), Germany, Great Britain (Mainland), Iceland, Ireland, Italy (Mainland), Italy (Sardinia), Liechtenstein, Netherlands, Norway (Mainland), Poland, Portugal (Azores), Portugal (Madeira), Portugal (Mainland), Romania, Slovakia, Spain (Balearic Islands), Spain (Canary Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Holarctic (elsewhere, introduced) (Platnick 10.0).
Male.
Male.
Male.
Genus: Microneta Menge, 1869
Microneta viaria (Blackwall, 1841)
Range: Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Hungary, Ireland, Italy (Mainland), Latvia, Liechtenstein, Lithuania, Macedonia, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Azores), Romania, Russia (Central European), Russia (Eastern European), Russia (Kaliningrad Region), Russia (Northern European), Russia (NW. European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Holarctic (Platnick 10.0).
Male.
Female.
Male.
Male.
Male.
Genus: Mughiphantes Saaristo & Tanasevitch, 1999
Biology: A group of former Lepthyphantes species now reclassified to the new Mughiphantes genus (Saaristo & Tanasevitch 1999).
Characters of genus: Medium sized spiders ranging from 1.6-2.8 mm (Saaristo & Tanasevitch 1999). In some species the abdomen has a striking pattern. Tibiae usually with one or more ventral spines. Metatarsus IV without a trichobothrium. Female epigyne disc or pear shaped, often thickened with an almost rigid scape. The male palp shows some adaptations to the rigid scape of the epigyne but these are not visible with a lens.
Mughiphantes handschini (Schenkel, 1919)
Range: France (Mainland), Italy (Mainland), Spain (Balearic Islands), Switzerland (van Helsdingen 2009.1). Global range: Central Europe (Platnick 10.0).
Genus: Neriene Blackwall, 1833
Neriene furtiva (O. P.-Cambridge, 1871)
Range: Andorra, Belgium, Bulgaria, Croatia, Czech Republic, Finland, France (Corsica), France (Mainland), Germany, Great Britain (Mainland), Greece (Mainland), Hungary, Italy (Mainland), Italy (Sardinia), Moldova, Netherlands, Poland, Portugal (Mainland), Romania, Russia (Eastern European), Russia (NW. European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Switzerland, Ukraine (van Helsdingen 2009.1). Global range: Europe, North Africa, Russia, Ukraine (Platnick 10.0).
Female.
Female.
Female.
Male.
Male.
Neriene montana (Clerck, 1757)
Range: Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Hungary, Ireland, Italy (Mainland), Latvia, Liechtenstein, Lithuania, Macedonia, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Mainland), Romania, Russia (Central European), Russia (Eastern European), Russia (Kaliningrad Region), Russia (Northern European), Russia (NW. European), Russia (Southern European), Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Holarctic (Platnick 10.0).
Subadult female.
Male.
Female.
Genus: Ostearius (Hull, 1911)
Characters of genus: All tibia with two dorsal spines but no lateral spines. Metatarsus IV about twice as long as tarsus IV. Male palp with tibial apophysis.
Ostearius melanopygius (O. P.-Cambridge, 1879) - Midget spider
Description: The carapace is dark brown to black not elevated in males. Legs are reddish brown and fairly long. Femur I is shorter than the carapace. Metatarsus IV is about twice as long as tarsus IV, but the metatarsi are shorter than the tibiae. The clypeus is slightly concave. The male chelicerae is provided with a strong pointed conical tubercle with a bristle at its tip. The chelicerae is thickened at the base and provided with conspicuous stridulating striae on the lateral sides. The tibial apophysis is bidentate and the epigyne lacks a free scape. The abdomen is reddish with a black area around the spinners. Size: Female 2.0-2.6 mm; male 2.0-2.5 mm. Range: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Faroe Islands (introduced), Finland, France (Mainland), Germany, Great Britain (Mainland), Iceland, Ireland, Italy (Mainland), Netherlands, Norway (Mainland), Poland, Portugal (Azores), Portugal (Madeira), Portugal (Mainland), Romania, Slovakia, Spain (Balearic Islands), Spain (Canary Islands), Spain (Mainland), Sweden, Switzerland (van Helsdingen 2009.1). Global range: Cosmopolitan (Platnick 10.0).
Female.
Characteristic black spot at rear.
Male.
Female.
Female.
Female.
Male.
Male.
Male.
Male.
Male.
Male.
Genus: Palliduphantes Saaristo & Tanasevitch, 2001
Biology: Pale coloured spiders, mostly more or less cavernicolous in lifestyle. The genus incorporates a group of former Lepthyphantes species now reclassified to the new Palliduphantes genus based on synapomorphies of the secondary genital organs (Saaristo & Tanasevitch 2001). The males of the species share some special characters including similar shaped paracymbia which are large and tub-like. Also the lamella of the palps and the epigynes share similarities, the epigynes having a very characteristic appearance in dorsal view (see Saaristo & Tanasevitch 2001 for more details on diagnostic characters). The genus is subdivided in to eight species groups bases on the morphology of the secondary genital organs (Saaristo & Tanasevitch 2001)
Characters of genus: Small to medium sized linyphiids having body lengths ranging from 1.30-2.95 mm, but species larger than 2.5 mm are few (Saaristo & Tanasevitch 2001). Pale coloured spiders, the cephalothorax and appendages range in colour from pale yellow to pale orange and the unicoloured abdomen from pale yellow to grey or greyish brown, sometimes with a greenish tinge or a faint pattern of transverse stripes or chevrons. Legs with few spines. Metatarsus IV is without a trichobotrium.
Palliduphantes stygius (Simon, 1884)
Range: France (Mainland), Portugal (Azores), Portugal (Mainland), Spain (Balearic Islands), Spain (Mainland) (van Helsdingen 2009.1). Global range: Spain, France, Azores (Platnick 10.0).
Genus: Prinerigone Millidge, 1988
Prinerigone vagans (Audouin, 1826)
Range: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, France (Corsica), France (Mainland), Germany, Great Britain (Mainland), Greece (Mainland), Hungary, Italy (Mainland), Italy (Sardinia), Italy (Sicily), Macedonia, Moldova, Netherlands, Portugal (Azores), Portugal (Madeira), Portugal (Mainland), Romania, Russia (Southern European), Slovakia, Spain (Balearic Islands), Spain (Canary Islands), Spain (Mainland), Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Old World (Platnick 10.0).
Female.
Female.
Male.
Male.
Female.
Female.
Genus: Tenuiphantes Saaristo & Tanasevitch, 1996
Biology: Previously, members of this genus were placed in the species rich genus of Lepthyphantes. A homogenous group of species have now been transferred to the Tenuiphantes genus which is characterised by their copulatory organs. Markings can be quite variable within species, nevertheless they are sometimes useful for separating the species.
Characters of genus: Small to large linyphiids ranging from 1.7-4.1 mm body length (Saaristo & Tanasevitch 1996). Males are characterized by having a sinuous embolus, often with a dentigerous protrusion at about halfway while females are characterized by having the proscapus bordered at either side by a lateral wing-like extension of the median part of the scapus (Saaristo & Tanasevitch 1996). Epigynes of T. alacris females also characterized by strongly developed lateral teeth. Paracymbium with 0-3 teeth. The species differ in leg spination. Metatarsus without a trichobothrium except in T. retezaticus (endemic to Romania). Most species have uniformly coloured legs and a dark dorsal pattern on the abdomen usually composed of broad black transverse bars on a brownish background. Bars sometimes reduced to paired dots combined by thin black lines. Dorsal pattern is usually more obscure in males. Legs fairly long and with long spines.
Tenuiphantes tenuis (Blackwall, 1852)
Description: Carapace brown to blackish. Anterior medials almost equidistant, with medials separated from laterals by ca. 0.5 diameter, laterals much less than twice the diameters of medials (Locket & Millidge 1953). Sternum blackish. Legs yellow-brown, fairly long and with long spines. TM 1 ca. 0.18-0.22 (Roberts 1987). Abdomen yellow-brown to almost black. Usually, dark transverse bars are present dorsally but they may be difficult to discern in specimens with dark background colours. Bars are often reduced to paired dots which may be combined by thin U- or V-bent black lines. Shining white patches are sometimes distributed across the dorsal surface of the abdomen, at other times mostly at sides if not absent completely. Epigyne anchor shaped, male palp with two teeth at each side of the paracymbium. Size: Female 2.0-3.2 mm; male 2.0-2.7 mm. Range: Andorra, Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France (Corsica), France (Mainland), Germany, Great Britain (Channel Islands), Great Britain (Mainland), Great Britain (Northern Ireland), Greece (Mainland), Greece (North Aegean Islands), Hungary, Ireland, Italy (Mainland), Italy (Sicily), Latvia, Liechtenstein, Macedonia, Malta, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Azores), Portugal (Madeira), Portugal (Mainland), Romania, Russia (Central European), Slovakia, Slovenia?, Spain (Balearic Islands), Spain (Canary Islands) (introduced), Spain (Mainland), Sweden, Switzerland, Ukraine, Yugoslavia (van Helsdingen 2009.1). Global range: Europe, North Africa (elsewhere, introduced) (Platnick 10.0).
Female.
Male.
Male.
Female.
Female.
Female.
Female.
Male.
Male.
Male.
Male.
Male.
Female.
Female.
Female.
Female.
Female abdominal markings.
Female, killed by parasitic larva shortly after final moult.
Male.
Male.
Male.
Male.
Male.
Male.
Genus: Trichoncus Simon, 1884
Trichoncus aurantiipes Simon, 1884
Range: Portugal (Mainland), Romania, Spain (Balearic Islands) (van Helsdingen 2009.1). Global range: Morocco, Algeria, Tunisia (Platnick 10.0).
Trichoncus scrofa Simon, 1884
Range: Croatia, France (Mainland), Hungary, Italy (Mainland), Spain (Balearic Islands) (van Helsdingen 2009.1). Global range: France, Mallorca, Italy (Platnick 10.0).
Trichoncus sordidus Simon, 1884
Range: Croatia, France (Mainland), Germany, Italy (Mainland), Slovakia, Slovenia?, Spain (Balearic Islands) (van Helsdingen 2009.1). Global range: Europe (Platnick 10.0).
Genus: Typhochrestus Simon, 1884
Typhochrestus digitatus (O. P.-Cambridge, 1872)
Range: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France (Mainland), Germany, Great Britain (Mainland), Great Britain (Northern Ireland), Hungary, Ireland, Italy (Mainland), Latvia, Lithuania, Moldova, Netherlands, Norway (Mainland), Poland, Portugal (Mainland), Russia (Eastern European), Slovakia, Spain (Balearic Islands), Spain (Mainland), Sweden, Switzerland (van Helsdingen 2009.1). Global range: Palearctic (Platnick 10.0).
Female.
Female.
Female.
Female.
Female.
Female.
Female.
Female.
Genus: Walckenaeria Blackwall, 1833
Characters of genus: The members of this genus range in size from 1.35 to 4.0 mm (Millidge 1983). The male carapace in most European species is elevated, often into large lobes or modified in some other way. However, in a few species such as in W. dysderoides the male head is only slightly domed behind the eyes. Where there is a lobe this carries the posterior median eyes (Millidge 1983). In other species the male carapaces carries a projection, often furnished with hairs which may be clavate or furcated. More rarely is the carapace of the female elevated, such as in W. acuminata which carries a conical elevation. The sternum is longer than wide with the posterior end pointed between coxae IV (Locket & Millidge 1953). The pedicel is distinctly sclerotized and is quite conspicuous in some species. The abdomen is without a scutum and is unicoloured in most species, usually greyish black but occasionally light grey or yellowish brown. Tibia I and II carries two spines while III and IV carries one in the European species. Legs are unicoloured in most species, often bright orange or reddish orange. Some species have contrastingly blackened tibiae on anterior leg pairs. Spines are weak, particularly on legs I and II in males (Millidge 1983). All metatarsi with a trichobothrium, Tm I variable, ranging from 0.39-0.76 in British species (Roberts 1987). The male palpal organs are of similar form and differences are not discernible with a hand lens. Females of a few species possess characteristic epigynes which makes them identifiable in the field using a hand lens. Other characteristics of the genus (not visible with a lens) include the strongly pectinate and large superior tarsal claws of legs I and II, clear transverse striae on the lateral faces of the chelicerae and the acuminate tarsus of the female palp (Locket & Millidge 1953, Millidge 1983). The European members of the genus have been reviewed by Wunderlich (1972) and the North American by Millidge (1983).
Walckenaeria corniculans (O. P.-Cambridge, 1875)
Range: Andorra, Austria, Belgium, Bulgaria, Czech Republic, Denmark, France (Mainland), Germany, Great Britain (Channel Islands), Great Britain (Mainland), Greece (Crete), Hungary, Ireland, Italy (Mainland), Latvia, Liechtenstein, Netherlands, Poland, Portugal (Mainland), Romania, Slovakia, Slovenia, Spain (Balearic Islands), Spain (Mainland), Switzerland, Yugoslavia (van Helsdingen 2009.1). Global range: Europe, North Africa (Platnick 10.0).