Paracoroptes piliocolobus, Grootaert, Patrick, 2014

Grootaert, Patrick, 2014, Mites of the genus Paracoroptes Lavoipierre, 1955 (Acariformes: Psoroptidae) — skin parasites of the African monkeys of the family Cercopithecidae (Primates), Zootaxa 3887 (2), pp. 225-238 : 231-236

Paracoroptes piliocolobus sp. n.

( Figs. 6–9 )

MALE (holotype, Figs. 6 , 7 ). Body 365 long (360–370 in 2 paratypes) and 280 wide (280–285). Gnathosoma . Ventral subcapitular projections short and widely rounded. Idiosomal dorsum. Propodonotal shield 75 long (70–75) and 95 wide (87–95). Setae vi 17 long (17–19); si 35 long (35–38), and se 130 long (125–140). Distance se–se about 85. Distance between propodonotal and hysteronotal shield about 65. Striated cuticle of idiosoma with few scales in antero-lateral and postero-lateral parts between levels of setal bases se and c2 and setal bases d2 and e2, respectively. Median part of idiosomal cuticle between propodonotal and hysteronotal shields with thickened striae. Hysteronotal shield 195 long (190–200) and 205 wide (205–210) at level of anterior margin. This shield devoid of ornamentation. Anterior margin of hysteronotal shield without lateral projections. Opisthosomal lobes 90 long (90–95), maximum distance between lobes about 65. Terminal cleft about 1.4 times longer than wide. Idiosomal venter. Projection on posterior margin of coxal fields II present, hook-like. Coxal fields III opened. Diameter of adanal suckers about 18. Lengths of idiosomal setae: c1 35 (34–36), c2 80 (75–80), cp 170 (160–175), c3 68 (65–69), d1 60 (57–61), d2 110 (105–110), e1 80 (79–83), e2 98 (95–105), f2 120 (115–120), h2 480 (470–500), h3 125 (115–130), ps1 195 (190–205), ps2 45 (40–45), ps3 about 17, g 9–12, 1 a, and 3a— all about 85, 4 b—70 (68–73), 4a 30 (28–30). Legs. Legs III about 320 long, legs IV about 110 long. Tarsi III about 75 long. Pretarsi III about 45 long. Tibia IV without antero-antiaxial projection. Ventral projection on trochanter IV present. Lengths of solenidia: ω 3 I, ω 1 II, σ 1 I, and σ II about 25, ω 1 I about 15, φ I and φ II about 55, σ III about 45, φ III about 70, φ IV about 30.

FEMALE (3 paratypes, Figs. 8 , 9 ). Body 380–390 long and 290–305 wide. Gnathosoma . Ventral subcapitular projections short and widely rounded. Idiosomal dorsum. Propodonotal shield 80–85 long and 90–95 wide. Setae vi 20–22, si 36–38 long, and se 115–120 long. Distance se–se about 100. Distance between levels of setal bases c2 and cp about 20. Distance between propodonotal and hysteronotal shield about 75. Striated cuticle of idiosoma without scales. Hysteronotal shield 75–80 long and 115–120 wide at level of anterior margin and 55–60 wide at level of posterior margin. This shield bearing setae d1 and devoid of ornamentation. Setae e1 situated immediately posterior to hysteronotal shield or on posterior margin of this shield. Opening of bursa copulatrix situated near level of seta e2 bases. Idiosomal venter. Epigynum about 90–95 wide. Projection on posterior margin of coxal fields II widely rounded, short. Coxal fields III with widely rounded protrusion each, coxal fields IV without protrusions. Lengths of idiosomal setae: c1 and d1 33–35, c2 65–68, cp 100–110, c3, d2, and e1 63 –65, e2 90 –100, f2 85–90, h2 430–440, h3 170–180, ps1 3–4, ps2 80–85, ps3 43–45, 1 a 65–70, 3 a 65–68, 4 a and g 50–55, 4 b 40–45. Legs. Legs III and IV about 155 long. Tarsi III and IV about 40 long, subequal to pretarsi in length. Lengths of leg solenidia: ω 3 I and ω 1 II about 20, ω 1 I about 10, φ I and φ II about 45. σ 1 I and σ II about 17.

Type material examined. Male holotype, 2 male and 3 female paratypes ( IRSNB) from Piliocolobus badius (Kerr) ( Primates : Cercopithecidae ), the Democratic Republic of the Congo: [Lukolela, Nkolo au sud de Lukolela], 28 April 1959, coll. Herroclen.

Type deposition. The whole type series is deposited in IRSNB.

Etymology. The species name is derived from the generic name of the host and is a noun in apposition.

Hosts and distribution. This species is known only from the type host Piliocolobus badius from the Democratic Republic of Congo.

Differential diagnosis. The new species is very close to Paracoroptes colobi Fain, 1963 and differs from it by the following. In male Paracoroptes piliocolobus sp. n., the body is 360–370 long, the anterior margin of the hysteronotal shield bears a pair of the short lateral projections, the projections of coxal fields II are hook-like, tibiae III are without an antero-antiaxial projection; in females, the projections of coxal fields II are distinct, setae e2 are 90–100 long. In male Paracoroptes colobi , the body is 460–490 long, the anterior margin of the hysteronotal shield lacks the lateral projections, the projections of coxal fields II are very short and widely rounded, tibiae III have an antero-antiaxial projection each; in females, the projections of coxal fields II are weakly developed, setae e2 are about 50 long.

Figures

FIGURE 6. Paracoroptes piliocolobus sp. n., male in dorsal view.

FIGURE 7. Paracoroptes piliocolobus sp. n., male in ventral view.

FIGURE 8. Paracoroptes piliocolobus sp. n., female in dorsal view.

FIGURE 9. Paracoroptes piliocolobus sp. n., female in ventral view.