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Image of Pseudachorutes nica Palacios-Vargas, JG, Mejía-Madrid & HH 2012
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Pseudachorutes nica Palacios-Vargas, JG, Mejía-Madrid & HH 2012

Description

provided by Zookeys
Body length: 1.1–1.6 mm (mean 1.4 mm, n=10). Color of body deep dark blue. Cuticular granulation strong. Body setae simple and smooth, medium macrosetae (25–35 µm) withslightly capitate tips, short microsetae (9–12 µm) usually acuminate, sensorial setae longer than macrosetae (60 – 81 µm), with blunt apex. Antennae as long as head. Ant. I with 7 setae, Ant. II with 12 setae, including one ventral seta very small. Ant. III and IV dorsally fused. Antennal segments ratio I: II: III+IV as 1: 1.25–2.75. Sensory organ of Ant. III with two small straight internal sensilla under a cuticular fold, two guard sensilla, and 1 microsensillum close to vgs. Ant. IV with trilobed apical bulb, 6 cylindrical sensilla, seta “i”, microsensillum and subapical organite (Fig. 1), and with a ventral file with about 20–25 short setae (Fig. 2). Postantennal organ elliptical composed of 14–20 simple vesicles, as large as the nearby ocelli. Eye patch with 8+8 small ocelli (Fig. 6), F, G a little smaller than others. Buccal cone elongated. Mandible with four slender teeth (Fig. 3). Maxilla styliform, with one apical hook (Fig. 4). Labrum with 2/5, 5, 2 setae, the sclerotization in the shape of ogive (Fig. 5). Labium with typical number ofsetae for the genus and seta L situated on small tubercle (Fig. 5). Dorsal chaetotaxy as in Figs 6 and 8. Seta a0 on the head absent, unpaired seta d1 present. Th. I with 3+3 dorsal setae. Setae a2 present on Th. II, but absent from Th. III to Abd. IV, with m4 present on Abd. IV. Sensory setae on the body in position of p4 and m6 on Th. II and III, and p5 from Abd. I–IV and p3 on Abd. V. Sensorial formula of the body 022/11111. Sensory setae longer and slender than ordinary setae. Ratio of unguis III: largest Abd. V seta = 1: 0.5. Thoracic sterna without setae, but paratergal areas of Th. II and III with two setae on each side. Ventral tube with 4+4 setae, the posterior pair is longer than the others. Female genital plate with 3+3 pregenital, 7–12 circumgenital and 2 eugenital setae (Fig. 10); male genital plate with 3+3 pregenital, 10–13 circumgenital and 4+4 to 6+6 eugenital setae (Fig. 11). Each anal valve with 13 setae and 3 hr setae. Tibiotarsi I, II, III with 18, 18, 17, setae respectively, without tenent hairs. Unguis with one tooth on each side, 1/3 from base, and a tiny inconspicuous tooth on inner edge. Ratio tibiotarsus III: unguis about 1.3 (Fig. 7). Femora I, II, III with 11, 11, 10 setae respectively, one of them longer and acuminate. Trochanters with 5 setae each. Furcula well developed. Manubrium with one pair of dorsal longer setae. Dens with moderate granulation dorsally and with 6 setae, with a smooth triangular area ventrally devoid of secondary granulation. Mucro about half the length of dens, triangular, with two very short lamellae and granulation similar to dens, apex slightly curved (Fig. 9). Tenaculum with 3+3 teeth. Etymology. The name is derived from the country nickname that is the type locality.
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José G. Palacios-Vargas, Hugo H. Mejía-Madrid
bibliographic citation
Palacios-Vargas J, Mejía-Madrid H (2012) A new Pseudachorutes (Collembola, Neanuridae, Pseudachorutinae) from Nicaragua ZooKeys 187: 63–69
author
José G. Palacios-Vargas
author
Hugo H. Mejía-Madrid
original
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Distribution

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Known only from type locality. Province Estelí: Mesas de Moropotente, Acacia pennatula, Oplinemus, Croton jalapensis forest, 23 August 2007, ex soil from pit fall traps.
license
cc-by-3.0
copyright
José G. Palacios-Vargas, Hugo H. Mejía-Madrid
bibliographic citation
Palacios-Vargas J, Mejía-Madrid H (2012) A new Pseudachorutes (Collembola, Neanuridae, Pseudachorutinae) from Nicaragua ZooKeys 187: 63–69
author
José G. Palacios-Vargas
author
Hugo H. Mejía-Madrid
original
visit source
partner site
Zookeys