. Bulletin of the British Museum (Natural History) Zoology. Figs 14-16 Pteracarus pizonychos sp. nov.: male dorsum (14); venter (15); genital shield (16). mm. Figs 17-18 Pteracarus pizonychos sp. nov. female dorsum (17); venter (18). easily distinguished from each other by differences in the genital shield and setae on it in the male. The number of genital setae is more, the longest genital setae are longer and d2 is much longer in P. histotis than in P. aculeus. In the female, setae vi are distinctly shorter than sc i in P. histotis, while these setae are subequal in length in P. aculeus
. Bulletin of the British Museum (Natural History) Zoology. Figs 14-16 Pteracarus pizonychos sp. nov.: male dorsum (14); venter (15); genital shield (16). mm. Figs 17-18 Pteracarus pizonychos sp. nov. female dorsum (17); venter (18). easily distinguished from each other by differences in the genital shield and setae on it in the male. The number of genital setae is more, the longest genital setae are longer and d2 is much longer in P. histotis than in P. aculeus. In the female, setae vi are distinctly shorter than sc i in P. histotis, while these setae are subequal in length in P. aculeus. II. Mites without dorsal seta on genu IV (a total of five setae) (Dusbabek, 1973), and with d4 and d5 in the female. Pteracarus pizonychos sp. nov. Male (Figs 14,15 & 16). Gnathosoma almost as long as wide. Setae vi minute; sc i more conspicuous than vi, situated on asal level of sc e; ve, sc e, l\ long and similar to one another; /3 weak; ventral setae not so strong; jc4 and ex IV setiform. Genital shield situated distinctly posterior to basal level of sc e, bearing seven pairs of genital setae; dx much shorter than postero-median genital seta; penis long and rather thin. Leg I with a pair of terminal claws; paired claws on legs II-IV subequal in size to each other; antero-lateral seta on coxae II- IV and femora II-IV barbed apically. Measurements. Body 290 (holotype)-280 (paratype) long by 175-165 wide; vi 3-3; ve 68-67; sc i 4-5; sc e ca. 85-93; lx 95- 93; /3 6-6; dx 3-3; d2 6-8; penis ca. 175-ca. 170; ic4 11-10; ex IV 8-8. Female (Figs 17 & 18). Idiosoma rounded. Setae vi and sc i. 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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