0 - 1900 0-1900
1901 - 1950 1901-1950
1951 - 2000 1951-2000
2001 - 2018 2001-2018
Species Records by time
Linyphiidae 0-19001901-19501951-20002001-2018
Porrhomma pallidum Jackson, 1913 Not endangered 4x 160x 12x

Porrhomma pallidum Jackson, 1913

Czech nameplachetnatka roklinová
Threat levelNot endangered
Records176 nálezů, 45 kvadrátů
First record 1949, F. Miller, Miller 1951
Last record 2009 , Roman Mlejnek
Distribution areaPalaearctic - Transp., eM
Phytogeographic areaMeso, (Oreo)
Původnost stanovišťclimax, semi-natural
Humiditysemi-humid
StratumGround layer
Osvětlení stanovišťopen, partly shaded, shaded
Hojnost výskytuabundant
Altitude200-500-1300

Bibliography

 © Ota Zimmermann

The spider genus Porrhomma has been revised. it now includes 24 species.

Two new species are described:

  • Porrhomma altaica new species from the Altai Mountains
  • Porrhomma nekolai new species from eastern Asia and North America

Bathyphantes charpentieri Lebert, 1877 was removed from synonymy with Porrhomma microphthalmum (O. Pickard-Cambridge, 1871).

The following new synonymies are proposed:

  • Bathyphantes charpentieri Lebert, 1877 is a junior synonym of Porrhomma convexum (Westring, 1851) new synonymy
  • Porrhomma gertschi Hackman, 1954 is a junior synonym of Porrhomma terrestre (Emerton, 1882) new synonymy
  • Porrhomma myops Simon, 1884 is a junior synonym of Porrhomma rosenhaueri (L. Koch, 1872) new synonymy
  • Porrhomma ocella Chamberlin & Ivie, 1943 is a junior syn onym of Porrhomma convexum (Westring, 1851) new synonymy
  • Porrhomma omissum Miller, 1971 is a junior synonym of Porrhomma egeria Simon, 1884 new synonymy
  • Porrhomma pallidum affinis Miller & Kratochvíl, 1940 is a junior synonym of Porrhomma pallidum Jackson, 1913 new synonymy
  • Porrhomma sodonta (Chamberlin, 1949) is a junior synonym of Porrhomma convexum (Westring, 1851) new synonymy
  • The synonymy of Porrhomma macrochelis (Emerton, 1917) with Macrargus multesimus (O. Pickard-Cambridge, 1875) is supported
  • Porrhomma subterraneum Simon, 1884 is considered a nomen dubium, because it was described according to a juvenile specimen

To date, Porrhomma indecorum Simon, 1910 and Porrhomma marphaense Wunderlich, 1983 are only known from findings of females. They are considered to be species inquirenda, and their names are declared nomina dubia.

Keys are provided for males and females. Vulvae are drawn in dorsal, ventral and caudal views to understand their spatial structure.



Statistics

By month


By altitude


By collecting method (91 used records)
Porrhomma pallidum Jackson, 1913 ESMalesFemalesJuvenilesRecords
Individuální sběr510011
Zemní past3535061
Prosev416013
Eklektor1505
Smyk0201
 MalesFemalesJuvenilesRecords

By biotope (66 used records)
Porrhomma pallidum Jackson, 1913 ESMalesFemalesJuvenilesRecords
výsadby jehličnanů7409
kamenité suti nižších poloh4609
Lesy2103
bučiny nižších poloh0202
osluněné skály nižších poloh5604
bažinné olšiny0101
Skalní a suťové biotopy0101
rákosiny a orobincové porosty stojatých vod1001
jeskyně1001
suťové a roklinové lesy31108
ovocné sady bez bylinné vegetace0202
podmáčené smrčiny0403
horské smrčiny1102
travnaté stepi0101
horské bučiny0001
212111014010
rašeliniště2003
lužní lesy nížin0002
údolní jasanoolšové luhy0401
alpínské trávníky1001
interiéry budov0101
 MalesFemalesJuvenilesRecords

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