Galliocookia gracilis Golovatch 2013

Length of adults ca 8.0 (♂) or 9.0 mm (♀), width of midbody pro- and metazona 0.8 and 0.9 mm (♂, ♀), respectively. Coloration in alcohol uniformly pallid to, in front body quarter, light yellowish (Figs 1, 2). Body with 19 (♂) or 20 (♀) segments, strongly moniliform. Tegument smooth, mainly slightly shining, texture very delicately alveolate. Head densely pilose throughout; ♂ epicranial modifications absent, frons being regularly convex in both sexes. Antennae long and slender, reaching behind segment 2 when stretched dorsally (♂, ♀); antennomeres 2-4 and 6 subequal in length, but 6th clearly the highest (height being measured from ventral to dorsal margin) (Figs 1, 3); antennomeres 5 and 6 each with a distinct, round, distodorsal, compact field of sensilla. In width, head = segments 6-18(19) > 5 > 4 > 2 = 3 > collum; body suddenly tapering on telson. Collum ellipsoid, acutangular caudolaterally, like most of following metaterga with three transverse, rather regular rows of setae until segment 15 or 16, following metaterga with 3-4 less regular rows in front of a 4th or 5th regular row at caudal margin. Tergal setae very short, simple, sharp, only about 1/5-1/6 the length of a metatergum, a little longer only on collum and penultimate segment, mostly 3+3 in each row, but gradually growing to about 4+4 or 5+5 per row towards telson. A very faint transverse sulcus in caudal 1/3 of metaterga in front of caudal row of setae. Dorsum invariably convex. Paraterga poorly developed, especially so in ♀, visible starting from collum, invariably slightly declivous, set rather high (mainly at about upper quarter or third of midbody height in ♂ and ♀, respectively), slightly, but regularly rounded laterally; lateral margin of postcollum paraterga clearly serrate, with 6-7 subequal, often setigerous indentations in front of a somewhat (♀) or much (♂) larger, isolated, sometimes nearly pointed tubercle, this in pore-bearing segments turning into a conspicuous porostele (Figs 1, 2). This caudal tubercle or porostele of paraterga drawn caudolaterad, but never extending behind rear tergal margin. Pore formula normal: 5, 7, 9, 10, 12, 13, 15-18(19), ozopores round, dorsal, quite evident due to their porosteles. Stricture between pro- and metazona wide, shallow and smooth. Limbus very finely microspiculate. Epiproct conical, rather long, but barely extending behind 2+2 conspicuous, pre-apical teeth, caudalmost of which unusually strong and upturned (Figs 1, 2). Hypoproct trapeziform. Sterna clearly separated, unmodified. Legs rather long and slender, without modified setae, ca 1.3–1.4 (♂) or 1.1–1.2 (♀) times as long as midbody height, femora and tarsi longest, claw short (Fig. 4). Epigynal ridge very low, inconspicuous. Gonopod aperture transversely oblong-oval, taking up most of ventral part of metazonite 7. Gonopods (Figs 5, 6) with small, subglobose, evidently exposed, medially fused coxae, each carrying only 1 long seta distolaterally and a long, curved cannula distomesally; a scaly texture on lateral face absent. Telopodite suberect, slender and long, up to about its half being taken up by an elongate, setose prefemoral part; acropodite slightly helicoid, its apical lobe subacuminate, with a pre-apical, lobe-shaped, subtriangular solenomere (sl) and a short, papillate, rounded stump a little proximally. Both prefemoral part and acropodite strictly coaxial, in situ directed forward and parallel to each other. No traces of accessory seminal chamber or hairy pulvillus.