Djeboa gledhilli Pešić, Cook & Gerecke, 2013
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publication ID |
https://doi.org/ 10.11646/zootaxa.3720.1.1 |
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publication LSID |
lsid:zoobank.org:pub:E4F362CE-0F00-4C1D-9DF6-139F824815C9 |
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DOI |
https://doi.org/10.5281/zenodo.6149185 |
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persistent identifier |
https://treatment.plazi.org/id/03F82941-AD6B-FFDE-44EE-FA65EB58DDFC |
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treatment provided by |
Plazi |
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scientific name |
Djeboa gledhilli Pešić, Cook & Gerecke |
| status |
sp. nov. |
Djeboa gledhilli Pešić, Cook & Gerecke sp. nov.
( Figs. 22A–F View FIGURE 22 A – F , 37G View FIGURE 37 A – L )
Type series: Holotype male, dissected and slide mounted, Côte d’Ivoire, River N’zi near Ouokokro (O), drift day, 10.i.1978 Statzner. Paratype: same locality as holotype, drift net, 27.i.1977, 0/1/0 (dissected and slide mounted).
Diagnosis: Dorsal shield oval (L/W ratio 1.1), with medial depression; muscle scars anterior and posterior to the postocularia with strongly pronounced thickenings, second pair of muscle scars shifted to the edge of dorsal depression ( Figs. 22A View FIGURE 22 A – F , 37G View FIGURE 37 A – L ); colour not recognizable; gnathosomal bay V-shaped; tips of Cx-I ending posterior to frontal margin; medial margins of Cx-IV not reduced to a median angle and well separated from each other, posterior margin of Cx-IV extending directly laterally; Cx-III and -IV with a series of longitudinal striae (five pairs on Cx-IV). Palp ( Figs. 22D–E View FIGURE 22 A – F ): P-1 without a dorsal seta; P-2 strongly inflated, in proximal part with strongly protruding dorsal margin forming an acute angle, ventral margin S-shaped, distally convex; P-3 higher proximally than distally, ventral margin concave, dorsal margin strongly convex; P-4 slender, basally thickened, from here to anterior tip equally narrowed. Legs: I-L ( Fig. 22F View FIGURE 22 A – F ) with I-L-6 L/H ratio 2.2-2.3, ventral and dorsal margins distally strongly diverging; IV-L too foreshortened to illustrate, but similar to D. expansipalpis (see Fig. 19F View FIGURE 19 A – F ); swimming setae numbers (most of them hidden and cannot be counted): III-L-5, 5; IV-L-5, 4-5.
Description:
Male (holotype): Idiosoma (ventral view: Fig. 22B View FIGURE 22 A – F ) L/W 413/372. Dorsal shield ( Figs. 22A View FIGURE 22 A – F , 37G View FIGURE 37 A – L ) L/W 350/ 312, ratio 1.1; gnathosomal bay L 66. Gonopore L/W 63/14; ejaculatory complex L 138. Palp: total L 138-145; L/ H, L/H ratio: P-1, 15-17/20-28, 0.75-0.8; P-2, 37-39/35, 1.07-1.09; P-3, 36-38/26, 1.38-1.44; P-4, 39-40/15, 2.5- 2.7; P-5, 11/5, 2.3; chelicera total L 80; gnathosoma vL 74. Legs: dL of I-L: 37, 38, 34, 37, 48, 60; I-L-6 H 27, I-L- 6 L/H ratio 2.2.
Female (paratype): Idiosoma (ventral view: Fig. 22C View FIGURE 22 A – F ) L/W 413/374. Dorsal shield L/W 361/320, ratio 1.13; gnathosomal bay L 54. Gonopore L/W 66/71, ratio 0.94; egg (n = 1) maximum diameter 111. Palp ( Fig. 21A View FIGURE 21 A – D ): total L 145; L/H, L/H ratio: P-1, 15/22, 0.72; P-2, 39/36, 1.05; P-3, 39/28, 1.39; P-4, 40/16, 2.5; P-5, 12/6, 2.0; gnathosoma vL 74.
Etymology: Named after Terence Gledhill ( UK) in appreciation of his studies on Afrotropical water mites.
Discussion: Djeboa gledhilli sp. nov. belong to the compressa- group of species (see under D. compressa for diagnostic features of this group). In lacking a dorsal seta on P-1 and the strongly protruding dorsal margin of P-2, forming an acute angle in proximal part of segment, Djeboa gledhilli sp. nov. resembles D. ghanaensis sp. nov. from Ghana. The latter has less pronounced dorsal muscle scars, Cx-III/IV with less longitudinal striation, posterior margin of Cx-IV directed posterolaterally and a proportionally much stockier P-4.
Distribution: Côte d’Ivoire.
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.