Neumania (Neumania) fortiventa, Smit, 2017

Smit, Harry, 2017, Water mites from Fuerteventura, Canary Islands, Spain (Acari: Hydrachnidia), Ecologica Montenegrina 11, pp. 14-19 : 15

Neumania (Neumania) fortiventa n. sp.

( Figs. 1 A-E)

Material examined. Male, Fuente El Risco o El Pozo (name on map: Fuente del Valle de Valhondo ), N of La Mantilla, 28º 34.168 N 13º 57.784 W, alt. 108 m asl, 3-iii-2017 .

Diagnosis. Integument with very small spines, genital field rounded, gonopore narrowed anteriorly.

Description. Male: Idiosoma 810 long and 680 wide. Integument with very small spines, hardly visible. Apodemes of anterior coxae reaching to third coxae. Third and fourth coxae with narrow borders of secondary sclerotization, posterior margin of fourth with short apodemes. Genital field rounded, 186 long and 259 wide, with 16-17 pairs of acetabula. Near anterior margin of genital field 9-10 small setae, of which 4-5 in a row near posterior margin a row of 6 setae. Gonopore 154 long, anteriorly narrowed. Excretory pore with a sclerotized ring. Length/height of P1-5: 28/44, 100/54, 62/44, 106/32, 36/22. P3 dorsally with a long seta, P4 anteroventrally with a short setal tubercle and two small seta (one seta on other margin, not illustrated). Length of I-leg-4-6: 192, 214, 198. Length of IV-leg-4-6: 208, 236, 235. Swimming setae: IIIleg-3 one, III-leg-4 four, III-leg-5 two, IV-leg-3 one, IV-leg-4 three, IV-leg-5 two.

Female: Unknown.

Etymology. The name is derived from Fuerteventura, which means strong winds.

Remarks. The new species differs from Neumania uncinata Walter, 1927 (syn.: Neumania atlantida Lundblad, 1941 , Pešić et al. 2007) thus far the only known Neumania species from the Canary Islands, in the shape of the male genital field. The latter species has a genital field with somewhat angular lateral corners, and the narrowing of the gonopore is lacking. Moreover, P4 of the new species is more stocky, and the new species is much larger than N. atlantida , which measures 550 in idiosoma length. None of the European species with an integument with spines has a similar shape of the gonopore and genital field. Neumania seurati Walter, 1931 from southern Algeria has a similarly shaped genital field, but lacks the narrowing of the gonopore. Moreover, the palp is more slender compared with the new species.

Figures

Figure 1. Neumania fortiventa n. sp., A-E = holotype male. A = venter; B = Genital field; C = palp; D = I-leg-4-6; E = IV-leg-5-6. Scale bars: A = 200 µm, B-E = 50 µm.