Djeboa turmalinica Pešić, Cook & Gerecke, 2013

Pešić, Vladimir, Cook, David, Gerecke, Reinhard & Smit, Harry, 2013, The water mite family Mideopsidae (Acari: Hydrachnidia): a contribution to the diversity in the Afrotropical region and taxonomic changes above species level, Zootaxa 3720 (1), pp. 1-75 : 56-58

Djeboa turmalinica Pešić, Cook & Gerecke sp. nov.

( Figs. 33A–E , 38K–L )

Type series: Holotype female, dissected and slide mounted, Madagascar 071a, Andohahela (Tulear), Isaka, spring area S pass RIP 118 (km 36), 700 m asl., 16.0–18.4 ˚C, 0.055–0.060 mS/cm, spring, 10.ix.2001, Gerecke & Goldschmidt. Paratype: Madagascar 060c Tsimelahy (Tulear), River Antarantsa, downstream ‘piscine naturelle’, 05.ix. 2001, 200 m asl., 21.5 ˚C, 0.225 mS/cm, pool, Gerecke & Goldschmidt, 0/1/0 (dissected and slide mounted).

General features: Dorsal shield circular (L/W ratio 0.95), with extended medial depression, lateral ridges extending to frontal and caudal margin; muscle scars anterior and posterior to postocularia, with well pronounced thickenings, shifted medial to the edges of medial depression ( Figs. 38K–L ); gnathosomal bay Y-shaped; tips of Cx-I extending to frontal margin; medial margin of Cx-IV reduced to a median angle. Palp ( Fig. 33C ): P-1 with a dorsal seta; P-2 with straight ventral and strongly convex dorsal margin; P-3 ventral margin with a basal kink, from here to distal edge straight, equally narrowed; P-4 slender, ventral margin concave. Legs: I-L ( Fig. 33D ) with I-L-6 stout, L/H ratio 2.6, dorsal margins slightly concave in proximal third, from here to distal edge dorsal and ventral margin strongly diverging; IV-L: Fig. 33E ; swimming setae numbers: III-L-3, 1; III-L-4, 2; III-L-5, 2-3; IV-L-3, 1?; IV-L-4, 3-4; IV-L-5, 4.

Description:

Female (holotype): Idiosoma (ventral view: Fig. 33B ) L/W 425/438. Dorsal shield ( Figs. 33A , 38K ) L/W 366/ 384, L/W ratio 0.95; gnathosomal bay L 77. Gonopore L/W 86/79, ratio 1.1. Palp: total L 145-149; L/H, L/H ratio: P-1, 18/22, 0.8; P-2, 37-39/34-35, 1.1; P-3, 33-34/22, 1.5-1.6; P-4, 45-46/15, 3.0-3.1; P-5, 12/6, 2.0; chelicera total L 88; gnathosoma vL 83. Legs: dL of I-L-3-6: 39, 42, 51, 74; I-L-6 H 28, I-L-6 L/H ratio 2.6; dL of IV-L: 59, 67, 54, 74, 86, 99.

Male: Unknown.

Etymology: Named after the mineral tourmaline (dark violet colour, found in Madagascar). Discussion: It is most similar to Djeboa amethystica sp. nov. (see there for discussion). Distribution: Madagascar; only known from pools in two streams in the extreme southeast.

Figures

FIGURE 33 A – E. Djeboa turmalinica sp. nov., female: A = dorsal shield; B = idiosoma, ventral view; C = palp; D = I-L- 3 - 6; E = IV-L.

FIGURE 38 A – L. Photographs of dorsal shield. A – B. Djeboa globulipalpis sp. nov.: A— holotype female; B—paratype male; C Djeboa wondergemi sp. nov., female holotype. D – F. Djeboa nzia sp. nov.: D – E— female paratype, Fetekro, Côte d’Ivoire; F — paratype male, Kolomikro, Côte d’Ivoire. G Djeboa crocodilorum sp. nov., holotype male. H – J. Djeboa amethystica sp. nov.: H — female from Madagascar 135 a. I— holotype male; J— paratype female. K – L. Djeboa turmalinica sp. nov.: Kfemale holotype; L— female paratype.