Thoracophoracarus cooki, Gerecke, 2009
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publication ID |
https://doi.org/ 10.5252/z2009n1a7 |
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persistent identifier |
https://treatment.plazi.org/id/145F87A3-8247-FF80-36C5-D5D3FC1EFC19 |
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treatment provided by |
Marcus |
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scientific name |
Thoracophoracarus cooki |
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Thoracophoracarus cooki species-group
SPECIES INCLUDED. — Thoracophoracarus cooki n. sp., T. silvarum n. sp. and T. felix n. sp.
DIAGNOSIS. — Idiosoma oval in shape, with truncated anterior margin ( Fig. 8A View FIG ) and sexual dimorphism in dorsocaudal area. Dorsal idiosoma surface without humps. Coxae separated from remainder of ventral idiosoma by obvious suture lines, Cx-1+2 with rounded, not pointed tips. Legs as described for T. arrhenuroides . Acetabular fields compact, roundish, not reaching the idiosomal flanks. Palp robust, P-1 always with a dorsal seta, P-2 with 2-8 mediodistal setae, never bearing a setae bristle. Males: dorsocaudal idiosoma with a steep slope formed by a transverse sclerotized bar ( Fig. 8B View FIG ). Gonopore and, immediately above, excretory pore in terminal position ( Fig. 8 View FIG A-D), flanked by a pair of flat, transverse extensions. Females: dorsocaudal idiosoma equally rounded, without a transverse bar. Gonopore directed ventrally, closer to coxal field than to posterior margin. Excretory pore in ventrocaudal position.
REMARKS
With certainty, the following three species represent a monophyletic clade, separated from the remaining Thoracophoracarus species primarily by the unique sexual dimorphism. In shape of the acetabular field, they resemble T. gibberosus . The species from Madagascar are best defined as representing a speciesgroup.Their systematic placement cannot be defined without more insight in the relationships between the other species of the genus.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.