Published December 31, 2013 | Version v1
Taxonomic treatment Open

Djeboa bomiensis Cook 1966

Description

Djeboa bomiensis (Cook, 1966)

(Figs. 10A–F)

Mideopsis (Djeboa) bomiensis Cook 1966: 239.

Material examined: Type series: FMC, Liberia; holotype female, Suehn road, approximately four miles north of Bomi Hills Road, 30.xi.1957 Cook (Coll. 84); paratypes: same site and date as holotype 3/3/0; Coll. 36, 1/0/0; Coll. 41, 1/0/0; Coll. 76, 0/1/0; Coll. 83, 3/1/0; Coll. 88, 1/4/0; Coll. 89, 0/2/0; Coll. 91, 0/1/0; Coll. 93,3/2/0; Coll. 94, 2/ 3/0; Coll. 95, 1/2/0; Coll. 96, 1/2/0 (see Cook 1966 for more details).

General features: Dorsal shield oval (L/W ratio 1.1–1.2), with medial depression (Fig. 10A); muscle scars with slightly pronounced thickenings, located anterior and posterior to the postocularia; dorsal shield blue in colour except periphery; gnathosomal bay of a modified Y-shape, noticeably narrowing in posterior half; tips of Cx-I ending posterior to frontal margin; medial margin of Cx-IV reduced to a median angle; Cx-III and -IV with a few longitudinal striae (two pairs on Cx-IV). Palp (Fig. 10D): P-1 without a dorsal seta; P-2 with straight ventral and convexly bowed dorsal margin; P-3 maximum height proximally, ventral margin concave; P-4 equally narrowing from the base to tip. Legs: I-L (Fig. 10E) with I-L-6 L/H ratio 2.6; IV-L: Fig. 10F.

Discussion: In shape and setation of palp (with P-1 lacking seta), Djeboa bomiensis is similar to D. rotundata K. Viets, 1914. The latter differs most noticeably in the rounded shape of the idiosoma, and also in a more slender P-3 and P-4 (Cook 1966). A re-examination of type material shows that the statement of Cook (1966) that swimming hairs are absent in D. bomiensis (followed later in the key of K.O.Viets 1970) is erroneous.

Distribution: Liberia, widely distributed and numerous.

Notes

Published as part of 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, pp. 1-75 in Zootaxa 3720 (1) on page 22, DOI: 10.11646/zootaxa.3720.1.1, http://zenodo.org/record/285029

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Linked records

Additional details

Biodiversity

Family
Mideopsidae
Genus
Djeboa
Kingdom
Animalia
Order
Trombidiformes
Phylum
Arthropoda
Scientific name authorship
Cook
Species
bomiensis
Taxon rank
species
Taxonomic concept label
Djeboa bomiensis Cook, 1966 sec. Pešić, Cook, Gerecke & Smit, 2013