Onychalges asaphospathus Gaud, 1968

Grootaert, Patrick, 2014, Revision of the subfamily Onychalginae Fain, 1988 (Acariformes: Pyroglyphidae) — ectoparasites of passerine birds, Zootaxa 3785 (2), pp. 175-200 : 186-188

Onychalges asaphospathus Gaud, 1968

( Figs. 10 , 11 , 20 )

Onychalges asaphospathus Gaud, 1968: 302 , figs. 3a, 4a ( Psoroptidae ); Fain 1988: 21 ( Pyroglyphidae ).

Redescription. MALE (holotype, Figs. 10 , 16 A, B, 20). Body, including gnathosoma and opisthosomal lobes, 520 (510–530 in 6 paratypes) long and 340 (320–340) wide. Idiosoma . Propodonotal shield about 170 long and 80 wide. Hysteronotal shield about 220 long, 100 wide at level of setae d1 and 140 wide at level of setae f2 bases. Minimal distance between shields about 50. Dorsal striae fine. Posterior pair of genital papillae located distinctly outside anterior pair. Aedeagus 15–19 long; sheath of aedeagus present, subequal to aedeagus in length. Diameter of adanal suckers about 19. Adanal shields fused or narrowly separated anteriorly, about 130 long. Terminal cleft about 20 long. Opisthosomal lobes about 50 wide at base. Apical membrane of opisthosomal lobes absent. Maximum distance between lobes about 55. Lengths of setae: si 45–50, se 230–250, c2 190–220, cp 290–310, c3 220–230, d2 130–140, e2 200–220, f2 220–240, h2 and h3 410–440, ps1 115–130, ps2 195–200, ps 3 28–30, 1 a 75– 80, 3 a 40–160, 4 a 110–120, 4 b 70–80, and g about 4. Distances between setal bases (approximate): c1-c1, d1-d1, and e1- e1 80, c2-c2 220, d2-d2 120, e2-e2 140, and 4b-4b 60. Distances between levels of seta bases (approximate): c1-d1 50 and e1- e2 70. Legs III about 370 long; legs IV about 280 long. Tarsi III and IV about 100 and 80 long, respectively. Lengths of solenidia and setae: ω1 I 30–31, ω1 II 25–27, ω3 38–40, φ I and φ II about 120, φ III 100–105, φ IV 90 –95, σ 1 I 100–105, σ2 I 5, σ II 7–8, σ III 60 –65, sR III 220–240, kT III and kT IV about 70.

FEMALE (6 paratypes, Figs. 11 , 20 ). Body, including gnathosoma, 440–460 long and 250–260 wide. Idiosoma . Propodonotal shield about 150 long and 100 wide. Dorsal striae fine. Epigynum about 90 long. Bursa copulatrix globose. Lengths of setae: si 21–22, se 245–260, c2 130–145, cp 250–270, c 3 1 45–50, d2 70–80, e2 90 – 100, f2 38–40, h2 and h3 270–300, ps1 about 20, ps2 and ps3 45–50, 1 a about 50, 3a 65–70, 4 a about 80, 4 b and g about 50. Distances between setal bases (approximate): c1-c1 100, c2-c2 200, d1-d1 70, d2-d2 140, e1- e1 90, e2-e2 160, and 4b-4b 90. Distances between levels of seta bases (approximate): c1-d1 70 and e1- e2 40. Legs III and IV about 200 long. Tarsi III and IV 60 –65 long. Lengths of solenidia and setae: ω 1 I 37–40, ω1 II 28–30, ω3 33–35, φ I and φ II about 90, φ III about 80, φ IV 45 –50, σ 1 I 55–60, σ2 I 5, σ II 7–8, σ III 33 –35, sR III 130–140, kT III and kT IV 39 –43.

Type material examined. Holotype male ( MRAC 188.234), 6 male, 6 female and 1 tritonymph paratypes ( MRAC 188.234-188.236) from Clytospiza monteiri (Hartlaub) ( Passeriformes : Estrildidae ), CAMEROON: Centre region, Yaounde, 3°52'N, 11°31'E, December 1955, coll. J. Mouchet.

Non-type material examined. 1 male ( MRAC 152.973) from Euschistospiza dybowskii (Oustalet) ( Passeriformes : Estrildidae ), CAMEROON: Centre region, Yaounde, 3°52'N, 11°31'E, December 1955, coll. J. Mouchet; 1 male (188.238) from Spermestes bicolor (Fraser) ( Passeriformes : Estrildidae ), CAMEROON: no other data; 1 female ( MRAC 188.237) from same host, CAMEROON: no other data.

Hosts and distribution. This species was recorded from Clytospiza monteiri (type host) and Euschistospiza dybowskii in Cameroon ( Gaud 1968). Records of one male and female from Spermestes bicolor in the same region represent ecological contaminations ( Gaud 1968).

Figures

FIGURE 10. Onychalges asaphospathus Gaud, 1968, male. A—dorsal view; B—ventral view.

FIGURE 11. Onychalges asaphospathus Gaud, 1968, female. A—dorsal view; B—ventral view.

FIGURE 16. Onychalges spp., tarsi. Onychalges schizurus Gaud, 1968 (A, B), male: A—tarsus I in dorsal view; B—tarsus II in dorsal view; Onychalges longitarsus (Bonnet, 1924) (C – G): C—pretarsus I in dorsal view, male; D—tarsus III in ventral view, male; E—tarsus IV in ventral view, male; F—tarsus III in ventral view, female; G—tarsus IV in ventral view, female.

FIGURE 20. Onychalginae, details: aedeagus, spermatheca, and modified setae s and w of posterior legs.