Neumania (Soarella) fusiformis, Smit, 2021

Smit, Harry, 2021, Water mites from West Africa (Acari: Hydrachnidia), Acarologia 61 (3), pp. 700-746 : 727-728

Neumania (Soarella) fusiformis n. sp.

Zoobank: 0B11B4E8-7C64-47CF-85C5-90CC92994AF4

( Figure 18 A-C)

Material examined. Holotype female, plunge pool Kulugu River , Ghana, 6°51.365′ N 0°25.101′ E, 388 m a.s.l., 19 Feb. 2013 ( RMNH).

Diagnosis. Apodemes of anterior coxae short, extending to Cx-III; post-genital sclerite large; excretory pore not on a tubercle.

Description. Female: Integument with relatively large spiny setae. Idiosoma dorsally 486 long and 381 wide, ventrally 470 long. Idiosoma with large spindle-shaped tubercles. Dorsum with a pair of small platelets ( Figure 18A ). Coxal field small, apodemes of anterior coxae short, extending to Cx-III. Genital field 158 wide, genital plates 58 long with seven pairs of acetabula. Pre-genital sclerite much smaller the post-genital sclerite, the latter relatively large, 114 wide ( Figure 18B ). Excretory pore not on a tubercle. Length of P1-5: 20, 69, 31, 56, 38. P4 anteroventrally with a short, blunt seta ( Figure 18C ). Length of I-leg-4–6: 60, 70, 74. Length of IV-leg-4–6: 107, 122, 96. IV-leg-3–6 ventrally with 2, 2, 3, 1 pectinate setae, respectively. Swimming setae: III-leg-4 and -5 with three, III-leg-3 with one, IV-leg-5 with two, IV-leg-4 with three, IV-leg-4 with one.

Male: Unknown.

Etymology. Named for the large spindle-shaped tubercles.

Remarks. The new species is somewhat similar to N. tuberculata Cook, 1966 and N. ecphyma Cook, 1996 , but differs in the short apodemes of the anterior coxae, and the excretory pore is not on a large tubercle.

Figures

Figure 18 Neumania(Soarella) fusiformis n. sp., holotype female. A – dorsum; B – venter; C – palp. Scale bars: A-B = 100 µm, C = 50 µm.