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71
Brukernes egne taksonomiske tegninger / Hypositticus pubescens
« Last post by H. Løvbrekke on January 11, 2020, 12:03:30 AM »
.
72
Thanks for the explanation, I will include your information further.

Greeting
Harald
73
Females and older juveniles:
Philodromus aureolus: colour, brown or golden, in juveniles sometimes darker silverish or lead-like, overall uniform, sides of abdomen sometimes darker. No reddish nuance present. Cardiac mark, usually indistinct or when present, not darker than dorsum. White spots laterally are often present. Legs, uniformly coloured (Femora I and II non translucent), annulations, only weakly marked.

Philodromus cespitum: This is the most variable species in terms of colour, but is usually light, with the darkest specimens only weakly approaching aureolus. Its colour ranges from almost white through silver to orange-golden, with weak reddish nuance. Cardiac mark, again indistinct, though often surrounded with a white patch of hairs. Legs, light, with femora I-II whitish or greenish/bluish, from patella on brownish (due to fused annulations)

Philodromus collinus: Overall colour, reddish-copper to brown. Cardiac mark, not darker than rest of abdomen, in typical specimens often surrounded with white hairs forming chevrons. Legs, same colour as abdomen, with femora I-II somewhat lighter. Occasionally, a medial ring is present on these femora

Philodromus praedatus: Overall colour, golden to light brown (never as dark or intensive as in aureolus, more in the yellow tones). Cardiac mark, large and often darkened. Cephalothorax, often with a darker longitudinal median line. Legs, with distinct, clear annulations, with femora I-II usually the same colour as body or only slightly paler, often not translucent.
74
Hi
I've studied these species to try to find differences, but I can't find any differences.

Nice if you could explain how to tell the difference between the appearance of the three species: Philodromus aureolus, Philodromus cespitum and Philodromus Collinus

Regards Harald
75
A subadult female, but habitus says it was likely going to become aureolus s.str.
Simeon
76
This is a male Philodromus cespitum yes, recognisable after the silverish abdomen and the reddish cephalothorax & legs. Most other Philodromus aureolus group males have abdomen and cephalothorax the same colour. Contrary to popular belief, I consider adult and subadult members of the Philodromus aureolus group to be assignable after habitus in most cases.
Simeon
77
This is Philodromus emarginatus, clesrly recognisable after the longitudinal lines on the legs
Simeon
78
Tusen takk for hjelpa!!
Gode og nyttige tips!

Takknemlig for at du bruker tid på dette!


Mvh.Roald
79
Hei

Jeg har brukt Robert si Linyphiidae bok: Roberts, M. J. (1987). The spiders of Great Britain and Ireland, Volume 2: Linyphiidae and check list. Harley Books, Colchester, England, 204 pp.
Denne kan du finne på nettet hvis du registrerer deg som bruker på  World Spider Catalog   https://wsc.nmbe.ch/
Trykk på Families, og så Linyphiidae. Videre på Genera, så kan du foreksempel søke på Dismodicus bifrons og på catalog. Når du kommer inn på arten kan du se på referansen under der vil du finne "  Roberts, M. J. (1987). The spiders of Great Britain and Ireland, Volume 2: Linyphiidae and check list. Harley Books, Colchester, England, 204 pp" Her ligger hele boken ute som pdf fil-
På side 18 står en tabell medtorner og sansehår som jeg brukte mye til å begynne med. Alle de norske artene er ikke med her, nordlige og noen fjellarter mangler.

Mange bruker denne nøkkelen. https://araneae.nmbe.ch/matrixlinkey  En fyller inn så mye informasjon en kan å får en opp alternativ.

Håper det kan være til litt hjelp
Mvh
Harald

80
Flott!
Da går vi for den!
Takk for hjelpa!
Ps.: Sliter med disse matteveverne... Tips? (Roberts har jo minimalt med arter...)

Mvh. Roald
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