Hypogastrura socialis (Uzel, 1890)
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https://dx.doi.org/10.3897/subtbiol.35.54257 |
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https://treatment.plazi.org/id/EDDAB5A9-C93D-5E8C-9B2C-0EEB86B47996 |
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Hypogastrura socialis (Uzel, 1890) |
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Hypogastrura socialis (Uzel, 1890) View in CoL Figs 5 View Figure 5 , 6 View Figure 6
Material examined.
Spain, Jaén: Villacarrillo, Sierra de las Villas karst, Sima Miguel Ángel Blanco, 13 April 2019, G.E.V. leg. 15 females and three males mounted on slides.
Description.
Body length (excluding antennae) of adults 1.1-1.5 mm. Habitus typical of the genus. Color dark bluish-black, paler ventrally, eye-patches dark. Granulation fine and uniform, 6-8 granules between chaetae p1 on Abd. V (Fig. 6K View Figure 6 ).
Ant. IV with simple apical vesicle, subapical organite (or), microsensillum (ms), (6)-8-(9) lateral and three dorsal curved blunt sensilla (S7, S8, S9, 3-6 S9' + S1, S2, S3 in Fig. 6A-H View Figure 6 ). Ant. III-organ with two long (outer) and two short (inner) sensilla (Fig. 6A View Figure 6 ). Microsensillum on Ant. III present. Ant. I with eight chaetae (chaeta p’ present).
Ocelli 8 + 8. Postantennal organ slightly shorter than neighboring ocellus, with four subequal lobes; accessory boss present (Fig. 6I View Figure 6 ). Labrum with four distinct apical papillae (Fig. 6J View Figure 6 ). Labral chaetae 5, 5, 4, prelabrals 4. Maxillary head of the H. tullbergi type ( Fjellberg 1984) and labium as in Fjellberg (1999). Outer lobe of maxilla with two sublobal hairs.
Tibiotarsi I, II, III with 19, 19, 18 chaetae respectively. Apical chaeta A1 long clavate. Claws with small inner tooth. Empodial appendage with broad basal lamella and apical filament not reaching the inner tooth of unguis; ratio empodial appendage/inner edge of claw about 0.5 (Fig. 6O View Figure 6 ).
Chaetotaxy of head typical of the genus, with complete set of v-chaetae (Fig. 5A View Figure 5 ). Chaetae short and smooth. Body sensilla (s) about 1.5 times longer than ordinary chaetae, fine and smooth. Dorsal chaetotaxy as in Fig. 5A, B View Figure 5 . Th. I with 3 + 3 chaetae. Th. II with chaetae m1-6' present, m6 absent. Th. III with chaetae m1, m3-6' present, m2 and m6 absent. Abd. IV with chaetae p1-7 present, and with chaetae m1-5 present. On Abd. V chaetae p2 present (2+2 chaetae between s-chaetae) and m-chaetae absent. Subcoxae I, II, III with 1, 3(4), 3 chaetae respectively. Microsensillum on Th. II present.
Ventral chaetotaxy as in Fig. 5C, D View Figure 5 . Ventral tube with five chaetae on each side. Retinaculum with 4 + 4 teeth.
Furca well developed (ratio dens+mucro/inner edge of claws III 2.7-3.1). Dens with tooth-like granules and ventro-apical swelling, and seven chaetae. Mucro with relatively high outer lamella. Ratio dens/mucro 2.9-3.3 (Fig. 6M, N View Figure 6 ).
Anal spines small, situated on low basal papillae (Fig. 6L View Figure 6 ), ratio anal spine/basal papilla 1.5-2.0, ratio anal spine+basal papilla/inner edge of claw III 0.3-0.4.
Taxonomic note.
The specimens from Jaen fits the description of H. socialis sensu Stach (1949), Babenko et al. (1994), and Fjellberg (1998). H. socialis sensu Jordana (1980) and Jordana et al. (1997) (winter form from Quinto Real, West Pyrenees) in fact represents a species different from H. socialis (see Skarżyński and Kaprus’ 2009). They differs by the number of sensilla on Ant. IV and the dorsal chaetotaxy (see Table 2 View Table 2 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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