The Ebo-like running crab spiders in the Old World (Araneae, Philodromidae) Author Muster, Christoph University of Greifswald, Greifswald ,, Germany text ZooKeys 2009 2009-07-29 16 16 47 73 journal article 22601 10.3897/zookeys.16.230 e328534b-83b9-4320-8af8-2b3d88e43fa0 1313–2970 576477 6B4079A5-659D-490D-84E7-A4AF071EF091 Genus Titanebo Gertsch, 1933 Titanebo Gertsch, 1933: 10-11 . Ebo ( Titanebo ) Gertsch, 1933 – Schick 1965: 73-75 (relegated to subgenus level); Sauer and Platnick 1972: 36 . Ebo Keyserling, 1884 – Dondale and Redner 1978: 29-30 (ad part.). Type species. Titanebo macyi Gertsch, 1933 by original designation. Material examined. Titanebo albocaudatus ( Schick, 1965 ) : USA : Texas : 1♁, Abilene, 32° 27’N , 99° 46’W , June 1962 , leg. K. W. Haller (AMNH); 1♀ , Quemado, 28° 56’N , 100° 37’W , leg. W. J. Gertsch et al. (AMNH). MEXICO : Coahuila : 1♁, La Gloria , 26° 41’N , 101° 22’W , 24 August 1947 , leg. W. J. Gertsch (AMNH). Titanebo andreaannae ( Schick, 1965 ) : USA : Arizona : 1♁, 3♀ , Tucson, 32° 15’N , 110° 57’W , leg. O. Bryant (AMNH). Titanebo mexicanus (Banks, 1898) : USA : Arizona : 1♁, 1♀ , Welton-Mohawk, 32° 44’N , 113° 46’W , 9 December 1955 , leg. V. Roth (AMNH). MEXICO : Chihuahua : 1♁, 4♀ , 2 juv. Samalayuca Dunes, 31° 21’N , 106° 28’W , 25 June 1947 , leg. W. J. Gertsch (AMNH). Titanebo parabolis ( Schick, 1965 ) : USA : Utah : 4♁, 6♀ , American Fork Canyon, 40° 25’N , 111° 45’W , 12 May 1934 , leg. W. Ivie (AMNH) . Diagnosis . Philodromid spiders with moderately enlarged AME (AME size index 0.054 -0.076 ) and strongly elongated leg II (Leg II length index 1.4-1.7). Prosoma as wide as long ( Fig. 12 ). Clypeus of intermediate height (Clypeus height index 0.14-0.18, Fig. 8 ). Leg formula 2413 (occasionally 2143, but then leg IV almost as long as leg I). Spination of leg I: femur dorsal 0-1-1, prolateral 0-1-1-[01]; tibia ventral 2-2-0, pro- and retrolateral [01]-1-1, dorsal 0-0-1; metatarsus ventral 2-2-0, pro- and retrolateral [01]-1-1, dorsal 0-[01]. Metatarsus III and IV ventral 2-2-2. Patella of male palp without apophysis, tibia with two well developed apophyses, VTA a colourless lobe in close contact to the heavily sclerotized RTA, tip of RTA pointed and dentated. Embolus curved, its elongated, filiform tip pointing to RTA ( Fig. 3 ). Tegulum without apophysis. Conductor in form of elongate retrolateral groove. Epigyne weakly sclerotized, without atrium or grooves. Vulva ( Fig. 5 ) lateral and anterior of receptacula with long, sclerotised introductory tubes (= bursa copulatrix) on which the glandular heads (=spermathecal organs) sit, thus becoming copulatory ducts in the distal part. Receptacula with glandular mounds (=torus, Fig. 6 ). Remarks . Titanebo is herewith re-elevated to full genus status; for a justification see remarks on Ebo . Titanebo species from North America were thoroughly revised by Schick (1965) and Sauer and Platnick (1972) . Composition and distribution. The genus comprises 14 Nearctic species: Titanebo albocaudatus ( Schick, 1965 ) , T. andreaannae ( Schick, 1965 ) , T. californicus Gertsch, 1933 , T. cantralli ( Sauer & Platnick, 1972 ) , T. cresotis ( Schick, 1965 ) , T. dispar ( Schick, 1965 ) , T. dondalei (Sauer, 1968) , T. macyi Gertsch, 1933 , T. magnificus Chamberlin & Ivie, 1942 , T. mexicanus (Banks, 1898) , T. oblongus ( Simon, 1895 ) , T. parabolis ( Schick, 1965 ) , T. redneri ( Cokendolpher, 1978 ) , and T. texanus Gertsch, 1933 . The primary centre of distribution is presumably the desert and shrub region of the southwestern Nearctic ( Schick 1965 ).