Neumania (Allolemienia) falcifera Cook, 1974

Smit, Harry, 2021, Water mites from West Africa (Acari: Hydrachnidia), Acarologia 61 (3), pp. 700-746 : 726-727

publication ID

https://doi.org/ 10.24349/5d6U-DX5N

persistent identifier

https://treatment.plazi.org/id/1B5B87E5-C838-7665-FE03-FA4834AAFA03

treatment provided by

Felipe

scientific name

Neumania (Allolemienia) falcifera Cook, 1974
status

 

Neumania (Allolemienia) falcifera Cook, 1974

( Figure 17 View Figure 17 A-C)

New records. The Gambia. 0/1[mounted]/0, pool Prufu Swamp, Upper River Division, 10

Feb. 1998; 1/0/0, pool along Prufu Bolon stream, Basse, Upper River Division, 12 Feb. 1998.

Ghana. 16/18/0, Lake Dahwenya, 5°46.760′ N 0°03.049′ E, 24 m a.s.l., 9 Feb. 2013.

Description. Female: Integument smooth, idiosoma dorsally 884-1226 long and 648-995

wide, ventrally 810-1045 long. Apodemes of anterior coxae reaching to anterior part of Cx-IV. Posterior margin of Cx-IV with relatively long apodemes ( Figure 17A View Figure 17 ), lateral extensions rounded. Venter without secondary sclerotization. Gonopore 267 long. Genital plates rounded, 130 long, somewhat longer than wide, each plate with 27-29 acetabula. Between Cxgl-4 and genital field four pairs of setae lying free in the integument. Length of P1–5: 42, 124, 72,

148, 46. P4 with a large ventral setal tubercle, more medially two more smaller setal tubercles present ( Figure 17B View Figure 17 ). Length of I-leg-4–6: 243, 356, 352; grooved setae very long. Length of IV-leg-4–6: 356, 360, 324. Claws of legs relatively large, e.g., claw of IV-leg-6 50 long ( Figure 17C View Figure 17 ). IV-leg-5 with one trifurcate seta, other trifurcate setae lost. Swimming setae lost, but probably IV-leg-5 and IV-leg-4 with four swimming setae.

Remarks. The male specimen from the Gambia differs somewhat from the holotype and only known specimen thus far. The large claw of II-leg-6 is 86-94 long (121 in the holotype),

and IV-leg-3 and IV-leg-4 have only one trifurcate ventral seta (versus IV-leg-3 with two or three and IV-leg-4 with three in the holotype). As nothing is known about the variation in these characters, I assign the specimen from West Africa for the time being falcifera to. The female has not been described previously.

Distribution. Uganda ( Cook 1974), the Gambia, Ghana (this study).

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