Family Gabuciniidae Gaud and Atyeo, 1974
Genus Gabucinia Oudemans, 1905
Gabucinia delibata (Robin, 1877)
Description
MALE (n = 1)—Dorsum (Fig. 1): Idiosoma length 425 (from anterior edge of prodorsal shield to tips of opisthosomal lobes), idiosoma width 240. Prodorsal shield with slightly curved lateral margins, posterior margin with a median notch, surface uniformly punctured, length along midline 85, width 120. Setae vi 37, si 35, se 160 long. Distance between bases of prodorsal setae: vi–si 77, si–se 9, se–se 36. Setae si slightly at posterior level to setae se. Scapular shields narrow. Humeral shields present, setae c3 filiform, 37 long and cp 95 long, both situated ventrally. Distance between prodorsal and hysteronotal shields 18. Setae c1 minute, c2 28 long, on integument close to the anterior margin of hysteronotal shield. Hysteronotal shield entire, anterior margin slightly straight, small lateral incisions present at the base of opisthosomal lobes, length along midline 318, greatest width 192, surface punctured and with polygonal reticulations anteriorly and at base of opisthosomal lobes. Cupules ia, im, ip and hysteronotal glands gl present on hysteronotal shield. Setae d1 and e1 indistinct. Setae d2 minute, e2 26 long. Supranal concavity with median projection anteriorly and open posteriorly into terminal cleft. Setae h1 30, h2 182, h3 205, and f2 28 thickened. Setae ps1 short and spiculiform. Distance between dorsal setae: c1–d1 60, d1–d2 58, d2–e1 68, e1–e2 95, h1–h1 110, h2–h2 142, h3–h3 131
.
Venter (Fig. 2): Setae 1a filiform, 32 long. Ventral integument smooth, without sclerotized fragments. Genital arch shaped as inverted V, 30 long, 27 wide. Setae 4a 35 long, close to posterior tips of genital arch. Adanal shields absent. Epimerites IVa present but very short. Setae ps2 31 long. Setae ps3 anterior to adanal suckers, 16 long. Diameter of adanal suckers 25, distance between centers of discs 97. Setae 3a at posterior level to setae 3b alike setae g to genital papillae. Distance between bases of ventral setae: 1a–3a 112, 3a–g 34, g–4a 45, 4a–ps3 52, ps3–ps3 105.
Legs (Fig. 5a–d): Seta cG on genu I filiform. Lengths of solenidia: ω1 of tarsus I 17, ω3 of tarsus I 40, ω of tarsus II 15. Setae d at midlength of tarsus IV.
FEMALE (n = 1)—Dorsum (Fig. 3): Idiosoma length 520, idiosoma width 265. Prodorsal shield relatively as in male, length along midline 108, greatest width 138. Scapular setae si and se approximately at same level. Setae vi 43, si 50, se 180 long. Distance between bases of prodorsal setae: vi–vi 13, si–si 39, se–se 75. Humeral shields present. Setae c3 filiform, 30 long and cp 118 long. Distance between prodorsal and hysteronotal shields 18. Hysteronotal shield with anterior margin straight, posterior part with U-shaped unsclerotized area holding setae h1, length along midline 372, greatest width 215, surface punctured and with polygonal reticulation anteriorly, cupules ia and im present. Distance between dorsal setae: c1–d1 82, d1–d2 47, d2–e1 90, e1–e2 87, e2–h1 73, h1–h1 83, f2–f2 150, h2–h2 98, h3–h3 55.
Venter (Fig. 4): Epigynum thickened, bow-shaped, 76 long, 80 wide. Setae 3a situated adjacent to epigynum and closer to tips than base. Setae 3b at posterior level to setae 3a. Setae g situated between epigynum free tips and genital papillae. Distance between bases of ventral setae: 1a–3a 87, 3a–g 70, g–4a 80, 4a–ps3 185, ps2–ps3 18.
Legs (Fig. 5e, f): Tarsus IV extending beyond posterior end of opisthosoma, 95 long. Tibia III with setae φ 49 long.
Material examined
Hooded crow, Corvus cornix, Minia city, Egypt (4♀; 2♂); 15 February 2010; coll. H.M.H. and A. Abdelhady.
Remarks
Gaud and Atyeo (1974) depicted opisthosomal lobes in males covered with subtriangular shields separated from hysteronotal shield (see Figure 9b, pg. 545); however, in the current specimens and other specimens collected from Canada and Poland (personal communication with Heather Proctor), only one hysteronotal shield covers the whole body. Also, Gaud and Atyeo (1974) depicted prodorsal shield with deep incisions laterally connected to bases of setae se, while absent in the present specimens. These differences may be considered as intraspecific variations. Gabucinia delibata is worldwide in distribution, with some records as follows: USA (Jones Jr., 1968), France (Gaud & Atyeo, 1974), India (Kapoor & Kaur, 1975), Switzerland (Mironov, 1997), Canada and Poland (personal communication with H. Proctor), Slovakia (Zamec & Fenda, 2012), and Egypt (present study).