Amerodectes caribaeus, Mironov & González-Acuña, 2011

Mironov, Sergey & González-Acuña, Daniel, 2011, New feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines (Aves: Passeriformes) from Chile and Cuba, Zootaxa 3057, pp. 1-48 : 21-25

publication ID

http://doi.org/ 10.11646/zootaxa.3057.1.1

DOI

http://doi.org/10.5281/zenodo.4623096

persistent identifier

http://treatment.plazi.org/id/546E87CE-0313-FF90-FF11-E24BFA729670

treatment provided by

Plazi

scientific name

Amerodectes caribaeus
status

sp. n.

Amerodectes caribaeus   sp. n.

( Figs. 11 View FIGURE 11 , 12 View FIGURE 12 , 13 View FIGURE 13 A–E)

Type material. Holotype male ( ZISP 4613 ), 4 male and 10 female paratypes from the Cuban Pewee Contopus   caribaeus   (Linnaeus) ( Tyrannidae   ), CUBA: Habana, 23 ° 6 ' 52 "N 82 ° 23 ' 1 "W, 9 October 2007, coll. D.A. González-Acuña. GoogleMaps  

Type depository. Holotype, 3 males and 9 female paratypes—ZISP, remaining paratypes—DGA.

Description. MALE (holotype, range for 4 paratypes in parentheses). Idiosoma, length × width, 352 (350–370) × 137 (130–145), length of hysterosoma 227 (220–240). Prodorsal shield: 110 (106–113) × 108 (105–115), lateral margins entire, posterior margin straight, antero-lateral extensions acute, surface without pattern; scapular setae se separated by 57 (55–58) ( Fig. 11 View FIGURE 11 A). Setae ve present. Humeral shields absent. Setae c 2 and cp situated on soft tegument. Subhumeral setae c 3 lanceolate, 20 (20–24) × 7 (6 –7.5). Hysteronotal shield: greatest length 232 (230– 250), width in anterior part 102 (100–105), anterior margin straight, entire surface without pattern. Distance between prodorsal and hysteronotal shields 12 (10–15). Opisthosomal lobes approximately as long as wide at base; posterior margin of lobes roughly rounded, with poorly expressed extensions at bases of setae h 2. Terminal cleft shaped as a wide inverted U, 31 (30–35) long. Supranal concavity present, semicircular. Setae f 2 absent. Setae h 1 situated at level of supranal concavity, close to lateral margins of opisthosoma. Setae h 3 narrowly lanceolate, short, 22 (20–22) × 3 (3 –3.5); setae ps 2 73 (70–80) long; setae ps 1 minute, about 10 long, situated near margin of terminal cleft, anterior to level of setae ps 2. Distance between bases of dorsal setae: c 2:d 2 93 (90–95), d 2:e 2 88 (85–95), e 2:h 3 44 (44–51), d 1:d 2 35 (25–35), e 1:e 2 33 (30–35), h 1:ps 2 29 (27–31), h 2:h 2 63 (60–67), h 3:h 3 45 (45–50), ps 2:ps 2 80 (77–82).

Epimerites I fused into a narrow V, fused part with a pair of acute lateral extensions, inner margin of epimerites II with short and acute extensions ( Fig. 11 View FIGURE 11 B). Coxal fields I, II without extensive sclerotized areas. Rudimentary sclerites rEpIIa absent. Coxal fields II, III open. Coxal fields IV without sclerotized areas. Epimerites IVa absent. Genital arch of moderate size, 27 (25–28) × 42 (40–44); basal sclerite of genital apparatus with rounded posterior margin; aedeagus sword-shaped, 89 (85–90) long, extending to posterior margin of anal suckers; genital papillae not connected by bases. Genital and adanal shields absent. Anal suckers 11 (11–12) in diameter, corolla smooth. Opisthoventral shields narrow, occupying only lateral parts of opisthosoma; setae ps 3 situated much postero-lateral to level of anal suckers, near bases of setae ps 2. Distance between ventral setae: 3 b: 3a 15 (12–15), 3 a: 4a 42 (40– 46), 4 a:g 55 (52–57), g:ps 3 50 (50–55), ps 3:ps 3 70 (65–70), ps 3:h 3 12 (11–14).

Femora I, II with narrow ventral crests, other segments of legs I, II without processes. Solenidion σ 1 of genu I 13 (12–13) long, situated at midlevel of segment; genual setae cG I, II and mG I, II filiform ( Figs. 13 View FIGURE 13 A, B). Setae d of tarsi II, III approximately half as long as corresponding setae f. Tarsus IV 33 (31–33) long, without apical process; seta d situated at midlevel of segment; solenidion φ of tibia IV extending to midlevel of ambulacral disc ( Fig. 13 View FIGURE 13 C).

FEMALE (9 paratypes). Idiosoma, length × width, 500–540 × 175–190, length of hysterosoma 345–390. Prodorsal shield: general form and surface as in male except for posterior margin with blunt median extension, 130– 135 × 128–148, setae se separated by 70–85 ( Fig. 12 View FIGURE 12 A). Setae ve present, minute. Humeral shields absent. Setae c 2 and cp situated on soft tegument. Setae c 3 lanceolate, 23–25 × 7 –7.5. Distance between prodorsal and hysteronotal shields 22–28. Anterior and lobar parts of hysteronotal shield separated dorsally by narrow transverse band of soft tegument, but remain connected ventro-laterally ( Fig. 12 View FIGURE 12 B). Anterior hysteronotal shield slightly enlarged anteriorly, anterior margin slightly concave, posterior margin convex, greatest length 265–295, width at anterior margin 112–133, surface without pattern. Length of lobar region 88–98, greatest width 95–100. Terminal cleft narrow, parallel-sided, extending slightly beyond level of setae h 2, 60–70 long, 4–6 wide at level of lobar apices. Supranal concavity poorly distinct. Setae h 1 on lobar shield, close to anterior margins; setae f 2 absent. Setae h 2 spindle-like, 62–68 × 8–9. Setae ps 1 equidistant from outer and inner margins of opisthosomal lobes. Setae h 3 28–32 long, about 1 / 3 of terminal appendages. Distance between dorsal setae: c 2:d 2 112–120, d 2:e 2 122–150, e 2:h 2 50–55, h 2:h 3 52–55, d 1:d 2 40–55, e 1:e 2 42–46, h 1:h 2 18–20, h 1:h 1 40–42, h 2:h 2 78–86.

Epimerites I fused into a V; fused part without lateral extensions; inner margin of epimerites II with short and acute extension. Lateral parts of coxal fields II with large sclerotized areas. Epimerites IVa absent. Translobar apodemes of opisthosomal lobes present, wide, not fused anterior to terminal cleft. Epigynum with short lateral extensions, greatest width 70–75; apodemes of eoviporus separated from epimerites IIIa. Pseudanal setae ps 2, ps 3 filiform, setae ps 2 situated posterior to anal opening, on anterior margin of translobar apodemes ( Fig. 12 View FIGURE 12 B); distance between setae: ps 2:ps 2 47–57, ps 3:ps 3 25–29, ps 2:ps 3 40–55. Primary spermaduct with scarcely noticeable enlargement in proximal part; secondary spermaducts 15–20 long, nearly twice as long as enlargement of primary spermaduct ( Fig. 13 View FIGURE 13 E).

Femora I, II with ventral crest, other segments without processes. Solenidion σ 1 of genu I 12–14 long, situated at midlevel of segment. Genual setae cG I, II and mG I, II filiform. Setae d of tarsi II – IV shorter than corresponding setae f. Genu IV dorsally inflated, with longitudinal dorsal crest in proximal half ( Fig. 13 View FIGURE 13 D), genu III without dorsal crest.

Differential diagnosis. Males of Amerodectes caribaeus   sp. n. are most similar to those of the previous species, A. contopus   , by the general shape of dorsal and opisthoventral shields and by having short and lanceolate setae h 3 whose length does not exceed the distance between their bases. Both sexes of Amerodectes caribaeus   are easily distinguished from A. contopus   and from all other known Amerodectes   species by the absence of idiosomal setae f 2. Additionally, A. caribaeus   differs from A. contopus   by the following features: in both sexes distinct lacunae on the prodorsal and hysteronotal shields are absent; in males, setae h 1 are situated close to the lateral margins of opisthosoma, and setae ps 3 are situated far posterior to the level of the anal suckers, almost at bases of setae ps 2 ( Fig. 11 View FIGURE 11 B); in females, the apodemes of oviporus are separated from epimerites IIIa, setae h 3 are as long as 1 / 3 of terminal appendages, the posterior margin of anterior hysteronotal shield is convex, and setae ps 1 are situated equidistantly from margins of opisthosomal lobes ( Figs. 12 View FIGURE 12 A, B). In both sexes of A. contopus   , small lacunae are present in at least some parts of dorsal shields; in males, setae h 1 are equidistant from the midline and corresponding lateral margins of the opisthosoma, and setae ps 3 are situated at the level of the anal suckers; in females, the apodemes of oviporus are fused with epimerites IIIa, setae h 3 are at most 1 / 8 th the length of terminal appendages, the posterior margin of anterior hysteronotal shield is concave, and setae ps 1 are situated on inner margins of opisthosomal lobes.

Etymology. The specific epithet is taken from the specific name of the type host and is a noun in apposition.

V

Royal British Columbia Museum - Herbarium