Porrhomma oblitum (O. Pickard-Cambridge, 1871)

Figs. 41A–F.

Linyphia oblita O. Pickard-Cambridge, 1871 — O. Pickard-Cambridge (1871): p. 432 (descr. ♂); examined and transferred by Jackson (1913).

Neriene pallipes O. Pickard-Cambridge, 1871 — O. Pickard-Cambridge (1871): p. 437 (descr. ♂); examined and synonymised by Jackson (1913).

Porrhomma oblitum — Jackson (1913): p. 39, Pl. II, Figs. 23, 33 (♂ ♀); synonymy.

P. oblitum — Merrett (1994): p. 318, Figs. 5–6 (♀).

Material examined. CZECHIA: Lovosice, Lovoš Hill, 25 May –14 Jun 1980, 1 ♂; Lanžhot, Ranšpurk Reserve, 5 Jun 1996, 1 ♀; Sedlec, Lednické Rybníky Ponds Reserve, 16 Jul 1996, 1 ♀, leg. V. Růžička (IECA). Šumava Mts., Mrtvý Luh Reserve, 22 May 1980, 1 ♀, leg. A. Kůrka (CAK). Lanžhot, Soutok Reserve, 1996–1997, 5 Ƌ 5 ♀, leg. et coll. L. Kubcová . RUSSIA: Orenburskaya (= Orenburg) Area, Aytuar, 22 May 1997, leg. S.L. Esyunin, 4 Ƌ 6 ♀ (PSU, No. 2840).

Diagnosis. Small species (CW <0.60 mm), Fe I–II without dorsal spines, AP has the form of a bird head, Sshaped ascending parts of copulatory ducts. It is closely similar to P. cambridgei, but it can be distinguished by pigmented body and normal eyes (Fig. 41A).

Description. ♀ (from Lanžhot, Czechia, 1 Oct 1996). Carapace brown, 0.57 mm wide, eyes normal, PME– PME = 0.8 (Fig. 41A). Abdomen gray. Fe without dorsal spines, Fe I with one prolateral spine. Ti I with one prolateral spine, Ti I–II with one retrolateral spine. Tm Mt I = 0.44, Mt I/CW = 0.72.

Ascending parts of the ducts are S-shaped. Spermathecae are formed behind the ascending part of the ducts. Long appendices can be seen on the epigynum (Fig. 41C) and vulva (Figs. 41D–F).

Ƌ (together with female). Embolus of middle length with a narrow velum. ARP has the form of a bird head (Fig. 41B).

Variation. Ƌ ♀. Carapace 0.53–0.61 mm wide. Tm Mt I = 0.37–0.45, Mt I/CW = 0.68–0.79 (n = 14).

Ecology. The species lives in wet open and forest habitats and is abundant in litter and under tree bark in floodplain forests (Kubcová & Schlaghamerský 2002).

Global distribution. Europe after Helsdingen (2017) and this article. See Fig. 42.