Djeboa dinosaurophila 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 : 31

Djeboa dinosaurophila Pešić, Cook & Gerecke sp. nov.

( Figs. 16A–E , 17A–B , 39C–D )

Type series: Holotype female, dissected and slide mounted, South Africa, DC 85 84 Eastern Transvaal, Houtbosloop on Rt 539 at “dinosaur park” S of Sabie, 20 m wide – sand and rocks, 11˚C, 27.v.1984 Cook. Paratypes: same data as holotype, 0/2/0 (slide mounted).

Further records: South Africa, DC 76 84, Eastern Transvaal, Sterkspruit on Rt. 539 at border between Nelspruit & Belfast districts, 5–10 m wide, swift-clear-rocks, coll. in area of detritus, 12 ˚C, 23.v.1984 Cook, 2/1/0 (slide mounted).

Diagnosis: Dorsal shield oval (L/W ratio 1.1), with medial depression; muscle scars with moderately pronounced thickenings, extending to the edges of medial depression (39C–D); gnathosomal bay Y-shaped; tips of Cx-I slightly posterior to frontal margin. Palp ( Figs. 16C , 17B ): P-1 with a dorsal seta; P-2 with slightly concave ventral and strongly convex dorsal margins; P-3 ventral margin with basal inflation, from there to distal edge straight, equally narrow; P-4 slender, ventral margin slightly concave. Legs: I-L ( Fig. 16D ) with I-L-6 L/H ratio 2.7–3.0, ventral margin convex; IV-L: Fig. 16E ; swimming setae numbers: III-L-4, 3-4; III-L-5, 5; IV-L-4, 4-5; IV- L-5, 4.

Description:

Male (DC 76 84): Idiosoma (ventral view: Fig. 17A ) L/W 489/491 Dorsal shield L/W 409-434/381-403, ratio 1.07; gnathosomal bay L 88. Gonopore L/W 82/13. Palp ( Fig. 17B ): total L 205; L/H, L/H ratio: P-1, 23/25, 0.94; P-2, 52/42, 1.24; P-3, 51/27, 1.9; P-4, 62/21, 2.9; P-5, 17/11, 1.6; chelicera total L 108; gnathosoma vL 105. Legs: dL of I-L-2-6: 49, 51, 62, 78, 95, I-L-6 H 33, I-L-6 L/H 2.9; dL of IV-L: 62, 58, 58, 85, 105, 119.

Female (holotype, in parentheses paratype, n = 1; in square parentheses specimens from DC 76 84, n = 1): Idiosoma (ventral view: Fig. 16B ) L/W 519 [538]/544 [567]. Dorsal shield ( Figs. 16A , 39C–D ) L/W 466 (478) [481]/425 (429) [450], ratio 1.1 (1.1) [1.1]; gnathosomal bay L 90 (91) [92]. Gonopore L/W 96 (96) [103]/75 (76) [67], ratio 1.28 (1.25) [1.5]. Palp: total L 211 (223) [212]; L/H, L/H ratio: P-1, 26/25, 1.03 (23/27, 0.86) [23/28, 0.82]; P-2, 46/42, 1.1 (55/43, 1.3) [52/43, 1.2]; P-3, 51/27, 1.9 (55/29, 1.9) [52/26, 2.0]; P-4, 69/20, 3.5 (73/22, 3.4) [68/20, 3.4]; P-5, 19/9, 2.0 (17/10, 1.7) [17/10, 1.7]; chelicera total L 113 (119) [114]; gnathosoma vL 100 (108) [108]. Legs: dL of I-L-2-6: 49 (54), 46 (52), 60 (62) [57], 78 (79) [77], 88 (93) [95]; I-L-6 H 32 (34) [32], I-L-6 L/ H ratio 2.8 (2.75) [3.0]; dL of IV-L: 77 (75) [69], 86 (81) [83], 74 (65) [77], 103 (109) [104], 115 (120) [117], 130 (123) [132].

Etymology: Named after the site to where the type specimen was collected.

Discussion: Similar to Djeboa granatica sp. nov. from Madagascar (see there for further discussion).

Distribution: South Africa; known only from the type locality.

Figures

FIGURE 16 A – E. Djeboa dinosaurophila sp. nov., female: A = dorsal shield; B = idiosoma, ventral view; C = palp; D = I-L; E = IV-L.

FIGURE 17 A – B. Djeboa dinosaurophila sp. nov., male: A = idiosoma, ventral view; B = palp.

FIGURE 39 A – L. Photographs of dorsal shield. A – B. Djeboa granatica sp. nov.: A— holotype male; B — paratype male. C – D. Djeboa dinosaurophila sp. nov.: C— female holotype; D— female paratype. E – F. Djeboa harrisoni (K. O. Viets, 1970): E — female holotype (SMF 53066); F — paratype male (SMF 53068). G – I. Djeboa ferruginea K. Viets, 1914: G — female lectotype (SMF 43194); H— female, Ouokoukro, Côte d’ivoire; I— female, Akaa Falls, Ghana. J – L. Djeboa rotundata K. Viets, 1914: J — female (SMF 43200); K — female (SMF 43201); L — male lectotype (SMF 43199).