Tydeoid mites (Acari: Tydeidae, Edbakerellidae, Iolinidae) occurring on Citrus in southern Africa
Ueckermann, Edward A.
Grout, Timothy G.
Journal of Natural History
2007
2010-12-02
41
37 - 40
2351
2378
Ueckermann & Grout, 2007
Ueckermann & Grout
2007
[561,709,375,399]
Arachnida
Iolinidae
Kakamasia
GBIF
Animalia
Actinedida
16
2366
Arthropoda
genus
gen. nov.
Typespecies. Kakamasia cataracta sp. n. Diagnosis Adults.This new genus is closely related to PronematulusBaker, PronematusCanestrini, and HomeopronematusAndre´. It differs from them all in that femur IVis divided (however, femur IVmay be divided in some species of Pronematulus), and in the setal formula of the tarsi, namely 8( ω)-6( ω)-6-5, as opposed to 8( ω)-7( ω)-6- 6 in Pronematulus, 8( ω)-6( ω)-5- 5 in Pronematus, and 8( ω)-6( ω)-6- 6 in Homeopronematus. It further differs from Pronematusand Homeopronematusin that genu IIhas three setae instead of two. Femur IVof both Pronematusand Homeopronematusbears two setae, instead of one seta as in Kakamasia. Kakamasiabears setae on trochantera I and II, whereas Pronematushas none. This monotypic genus can be defined as follows: dorsum of idiosoma with 14 pairs of setae including a pair of trichobothria ( sci); tarsus I without apotele; poroidotaxy: four ( ia, im, ip, ih); genital organotaxy: 0-0-4 (eugenital (eu)-genital (ge)-aggenital (ag) setae); solenidiotaxy: three (tarsi I and IIand tibia I); epimeral formula: 3-1-4-2 (ventral plus coxal setae); chaetotaxy of some leg segments: tarsi 8( ω)-6( ω)-6-5, genua 3-3-2-1, femora 3-3-2-1+0, and trochanters 1-1-1-0. Femur IVdivided. Anal opening extends posterior to ps 3to form a lobe. Etymology The genus name refers to the town close to the locality where this species was collected and its gender is feminine. Kakamasia cataracta sp. n. ( Figures 22–25) Typematerial South Africa: Northern Cape Province: one holotypefemale, from Citrus sinensis(Delta Valencias), Augrabiesnear Kakamas( 28 °39.99S, 20 °27.59E), 14 May 2003, T. G. Grout. Accession number: Acy: 03/244. Diagnosis The diagnostic characters of this species are the same as those defining the genus. Female(n51). Dimensions of holotype: length of idiosoma 302, width 167; legs: I 158, II154, III177, IV177; setae: υi16, υeand c25, sci47, sce, dand h 132, eand f 1, f 263, h 254, ps 122, ps 244, ps 313; cheliceral stylets 13; palptarsus 16. 1–2 Figures 22–25. Kakamasia cataracta sp. n., female. (22) Dorsum. (23) Venter. (24) Palp. (25) Leg I. Dorsum ( Figure 22): prodorsum with four pairs of setae, including trichobothrium (sci), υiis the shortest and υesituated posteromedially to sci. Opisthosoma with 10 pairs of setae and three pairs of cupules ( ia, im, ip). All setae setose. Striae longitudinal on prodorsum and diagonal to longitudinal from setae c 1to dand transverse from dto behind f 1–2. Venter ( Figure 23): epimeral formula 3-1-4-2. Genital area with four pairs of aggenital setae. Eugenital and genital setae absent but three pairs of anal setae ( ps) present, only ps 3situated ventrally. Anal opening extends posterior to ps 3to form a lobe. Ventral cupule ihclose to setae ps 2. Gnathosoma ( Figure 24): palp chaetotaxy (tarsus to trochanter): 5(?)-1-2-0. Solenidion minute, setae pζand dapparently forked distally. Legs ( Figure 25): chaetotaxy of leg segments: tarsi 8( ω)-6( ω)-6-5, tibiae 4( ϕ)-2-2-2, genua 3-3-2-1, femora 3-3-2-1+0, and trochantera 1-1-1-0. Solenidion ϕand setae kare closely associated. All leg setae slightly serrated. Femur IVdivided. Distal third of four terminal setae on tarsus I smooth. Tarsi II–IV each terminates in two claws and a hairy empodium. Solenidion on tarsus I short (9) but extends to anterior margin of tarsus. Coxae I without coxal organs. Etymology The species name cataractais derived from the Greek word kataraktes(5 waterfall), which refers to the Augrabies Waterfall close to the collection site.
2003-05-14
T
G. Grout
South Africa
-28.6665
Kakamas
12
20.459833
Augrabies
16
2366
1
Northern Cape
holotype