Eresus hermani Kovács, Prazsák, Eichardt, Vári & Gyurkovics 2015

Male. Prosoma (Fig. 1B): Length 2.9–4.1 (mean 3.4, N = 15) Prominent, color dark ferruginous brown, covered by long, black hairs intermingled with scattered, short, white ones. Cephalic region barely broader than thoracic part, weakly broadening towards the front, steeply raised posteriorly, but area between PME and PLE nearly flat. Thoracic part bordered laterally by narrow red stripes, never extending to posterior dorsum. Chelicerae: Blackish-brown, covered by long, nearly adpressed black hairs; basal half with scattered white hairs on the front. Legs: Legs I–II dark orange-brown with black hairs; Fe II and Pt II orange with red hairs, Ti II often with a dorsal patch of red hairs. Distal edges of Fe, Pt, Ti and Ta with narrow, white stripe dorsally, usually not extending to the proximal part of the next distal segment. Legs III and IV largely orange, covered with red hairs, Ta and Mt dull grayish-brown due to a mixture of reddish and black hairs, except for a proximo-dorsal patch of red on Mt. Opisthosoma (Fig. 1B): Dorsally red with scattered white hairs except for two pairs of black spots. Red area and black spots seamed by a more-or less continuous line of white hairs. Ventral side of opisthosoma black with the exception of some red hairs on the branchial opercula. Palps (Fig. 3A–C): Conductor broad, strongly wrinkled. Terminal tooth broad and blunt, somewhat longer than the lamella, with a strong, sudden bend at the base or somewhat more distally. Groove deep, narrow, ν (Greek nu) or narrow U shaped at the base in lateral view. Inner, spiny lamella high, about as high as terminal tooth. Female. Prosoma (Fig. 1A): Length 6.6–9.9 (mean 8.2, n = 21), prominent, especially the cephalic region, dark orange-brown with a heavy cover of short, off-white to light brown hairs and with scattered, small clumps of long, black hairs giving a grizzled appearance. Chelicerae: Dark orange brown, front of basal 1/3–3/4 same color as prosoma. Legs: Rusty red, Fe, Pt, Ti and Mt of all legs covered by black hairs with pale brown hairs scattered among them, the latter gradually decreasing in number from L I to L IV, usually clustering to form indistinct cross bands dorsally at the distal edge of each segments. Ta usually black, except for a small cluster of pale hairs basally. Palps: Similar in color to L I. Opisthosoma (Fig. 1A): Brownish-black, covered by long black hairs with a scattering of short pale hairs at its anterior. Epigyne (Figs 4A, 5A, 6A): Moderately deep, median lobe broad (ratio between the greatest width of ML to the greatest width of epigyne: 6:10), considerably flared posteriorly, reaching well over the posterior margin of the epigynal pit. Posterior edge of the epigynal depression not reaching posterior epigyne, but followed by a pair of flat, somewhat wrinkled plateaus adjoining the fissures laterally. Posterior part of fissures inclined towards the midline, turning parallel to the longitudinal axis before the short, incurved anterior tips. Vulva (Figs 4B, 5B, 6B): Spermathecae distinctly lobed, reaching further laterally than copulatory ducts. Anterior part of copulatory ducts weakly sclerotized, usually circular, exceptionally elongated in outline.

Known from seven localities (Fig. 2): Budapest: Remete-hegy (locus typicus), Mátyás-hegy, Sas-hegy, Budaörs: Farkas-hegy, Érd: Fundoklia-völgy and Várpalota-Inota: Víztározó, Baglyas-hegy. With the exception of Érd: Fundoklia-völgy, Eresus hermani proved to be syntopic with Eresus kollari, whereas all three Eresus sp. occurring in Hungary, Eresus hermani, Eresus kollari and Eresus moravicus are syntopic at Várpalota-Inota: Baglyas-hegy.