Paracerura gandarela Mendonça & Silveira, 2013, sp. nov.
Creators: name: Mendonça, Maria Cleide De
name: Silveira, Tatiana Cristina Da
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Isotomidae
Paracerura
Paracerura gandarela

description: Paracerura gandarela sp. nov.
Figs 1–16, Tab. 1
Type locality. “Serra do Gandarela ”, State of Minas Gerais, Caeté municipality, Rain forest litter, lat/long coordinates 20°1’49.91”S; 43°40’43.83”W about 1.500 meters a.s.l.
Type material. Holotype: female on slide (label 2289 CM/ MNRJ). Southeast Brazil, State of Minas Gerais, Caeté Municipality “Serra do Gandarela ”, 02.XII.2011, Abrantes & Silveira leg. Paratypes: 3 females on slide (label 2117 CM/ MNRJ) Southeast Brazil, State of Minas Gerais, Caeté Municipality “Serra do Gandarela ”, 09.VII.2011, Abrantes & Silveira; 1 female on slide (label 2292 CM/ MNRJ) Southeast Brazil, State of Minas Gerais, Caeté Municipality “Serra do Gandarela ”, 02.XII.2011, Abrantes & Silveira leg.
Etymology. The name refers to the “Serra do Gandarela ” Mts., southeastern Brazil, where the species was discovered.
Description. Body length of holotype 1.09 mm. Habitus typical of the genus. Integument with visible primary granulation. Colour yellowish. Antennae with diffused bluish pigment, darker in apical parts of the segments. Head yellow with a small bluish spot on posterior region. Abdominal tergites IV–VI with irregular transversal bands of dark pigment. Ventral side of head, body and furca pale (Fig. 1).
Body chaetotaxy with abundant smooth ordinary chaetae of different size (Fig. 2). Axial chaetotaxy without definite pattern. Macrochaetae not differentiated. Macrosensillary and microsensillary set as 3,3/2,2,2,6,7 and 1,1/ 1,1,0,0,0 by half tergite, respectively (Figs 2, 3). Tergite of abdominal segment V with 4+4 ordinary sensilla and 3+3 stout sensilla having a rough surface (Fig. 3).
Eyes 8+ 8 in dark patch; E and F (15µm) smaller than others (25µm). Postantennal organ (45µm) elongated and elliptical, with chitinous borders and 3–4 surrounding chaetae (Fig. 4).
Antennae longer than head diagonal with abundant ordinary chaetae. Ratio antennae: diagonal head= 1,15: 1,0. Ratio of antennal segments I:II:III:IV = 1,0:2,1:1,8:2,3 (60, 130, 113 and 140 µm, respectively). Ant. I with 5 microchaetae (2 dorsal, 3 ventral), 3 short sensilla (7µm) and 1 longer ventral sensillum (10µm) (Fig. 5, 6). Ant. II with 4 basal microchaetae (1 dorsal, 1 ventral, 2 lateral) and 1–2 lateral external sensilla (6µm) (Fig. 7). Ant. III with 2 broad sensory rods (12µm) partly covered by the integumentary fold, 1+1 guard sensilla (11µm), 1 dorsolateral sensillum, about 10 thin and short dorsal sensilla and 1 dorso-lateral basal microchaeta (Fig. 8). Ant IV with 1 roundish subapical microsensillum (organite) (4µm) protected by 1 curved chaeta and 1 very thin sensillum, poorly differentiated from ordinary chaetae.
Labrum with roundish apical folds, ventral ciliation, 4 prelabral and 5,5,4 labral chaetae inserted on papillae. Maxillary capitulum with 3 teeth, 6 subequal lamellae showing marginal ciliation. Maxillary outer lobe bifurcated with 4 sublobal chaetae. Labial palps complete, with 5 papillae and a lateral process reaching beyond papilla E, 3+3 proximal and 5+5 baso-medial chaetae. Head with 3+3 chaetae along ventral line.
Femora I and II with 1 chaeta in the inner side, longer than others (60 µm) (Fig. 9). Tibiotarsi I, II, III with 26, 27, 50 chaetae, respectively; distal whorls with 8 chaetae, tenent hairs pointed. Unguis long and thin (56µm) with 1 inner, 1+1 lateral and 1 dorsal tooth. Unguiculus long and thin (13µm), apical filament absent (Fig. 9).
Ventral tube with 6+6 distal, 6+6 anterior and 8 posterior chaetae (Fig. 10). Retinaculum (42 µm) with 4+4 teeth and 5–6 chaetae on corpus (Fig. 11). Subcoxa furcal anterior with 16 and subcoxa posterior with 33 chaetae. Manubrium (265µm) having about 16 central, 25+25 distal and 30+30 lateral chaetae on anterior view (Fig. 12). Dens long (410 µm) and crenulated with about 90 anterior, 20–25 posterior ordinary chaetae (Fig. 13) and 21 foilchaetae on internal side (Fig. 14). Mucro (25µm) with 4 teeth, 1 internal proximal, 2 robust medial and 1 shorter apical (Fig. 15). Ratio manubrium: dens: mucro = 10,6:16,4:1,0.
Female genital plate as in Fig. 16.
description: Published as part of Mendonça, Maria Cleide De & Silveira, Tatiana Cristina Da, 2013, New species of Paracerura (Collembola: Isotomidae) from Minas Gerais State, Brazil, pp. 73-78 in Zootaxa 3681 (1) on page 74, DOI: 10.11646/zootaxa.3681.1.4, http://zenodo.org/record/284087