. Bulletin of the British Museum (Natural History) Zoology. Figs 5-6 Pteracarus rhogeesis sp. nov.: female dorsum (5); venter (6).. Figs 7-8 Pteracarus genitalis sp. nov.: female dorsum (7); venter (8). setiform and long; ex IV spiniform. Leg I broad and rather short, lacking terminal claws; dorsal seta on genua II-IV spiniform and not striated. Male unknown. Measurements. Body 420 long by 270 wide. Setae vi 11; ve 115; sc i 15; sc e 185; lx ca. 170; /3 16; l4 16; z'c4 more than 50; spines on genua II-IV 21 long by 5 wide, 35 x 9 and 33 x 8, respectively. Material examined. Holotype female ex
. Bulletin of the British Museum (Natural History) Zoology. Figs 5-6 Pteracarus rhogeesis sp. nov.: female dorsum (5); venter (6).. Figs 7-8 Pteracarus genitalis sp. nov.: female dorsum (7); venter (8). setiform and long; ex IV spiniform. Leg I broad and rather short, lacking terminal claws; dorsal seta on genua II-IV spiniform and not striated. Male unknown. Measurements. Body 420 long by 270 wide. Setae vi 11; ve 115; sc i 15; sc e 185; lx ca. 170; /3 16; l4 16; z'c4 more than 50; spines on genua II-IV 21 long by 5 wide, 35 x 9 and 33 x 8, respectively. Material examined. Holotype female ex la io, Kiang-Si, China, date uncertain (BM ). The holotype is deposited in the collection of the BMNH (BM ). Diagnosis. Pteracarus genualis sp. nov. is characterized by the thickened and spiniform dorsal seta on genua II-IV, a character that has not been found in other species. The paired setae ventrally in coxal region IV, ic4 and ex IV, are different from each other in the present new species. Such a pair of setae is found only in Pteracarus completus vrazi Dusbabek and Wilson (Dusbabek, 1973). The specific name genualis is adopted in contrast with tibialis that indicates tibiae III and IV each bearing a stout, lanceolate and striated dorsal seta in the female. Pteracarus histotis sp. nov. Male (Figs 9,10 & 11). Gnathosoma shorter than wide dorsally. Setae vi inferior in size to sc i; ve, sc e and lx long; d2 long. Genital shield distinctly posterior to basal level of see,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Farn, Alexander E. London : Butterworths
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