Tyrannidectes anairetes, 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 : 30-34

publication ID

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

DOI

http://doi.org/10.5281/zenodo.4623108

persistent identifier

http://treatment.plazi.org/id/546E87CE-031A-FFA9-FF11-E2FDFA8D97CD

treatment provided by

Plazi

scientific name

Tyrannidectes anairetes
status

sp.n.

Tyrannidectes anairetes   sp.n.

( Figs. 16 View FIGURE 16 , 17 View FIGURE 17 , 18 View FIGURE 18 A–E)

Type material. Male holotype ( ZISP 4633 View Materials ), 5 male and 5 female paratypes from the Tufted Tit-tyrant Anairetes   parulus (Kittlitz) ( Tyrannidae   ), CHILE: Bío Bío Region, Ñuble Province, Santa Elena , 36 º 48 ' 14 "S 72 º 23 '04"W, 7 December 2006, coll. D.A. González-Acuña. GoogleMaps  

Type depository. Holotype, 4 male and 4 female paratype—ZISP, remaining paratypes—DGA.

Additional material. 3 male and 7 female paratypes, same host, CHILE: Bío Bío Region, Bío Bío Province, Santa Barbara , 37 ° 39 ' 53 "S 72 ° 1 ' 13 "W, 11 November 2006, coll. D.A. González-Acuña. GoogleMaps  

Description. MALE (holotype, range for 5 paratypes in parentheses). Idiosoma, length × width, 360 (340–360) × 144 (130–145), length of hysterosoma 230 (220–235). Prodorsal shield: 113 (110–115) × 115 (110–115), lateral margins entire, posterior margin straight, antero-lateral extensions short and rounded, surface without pattern; scapular setae se separated by 62 (60–65) ( Fig. 16 View FIGURE 16 A). Setae ve absent. Humeral shields absent. Setae c 2, cp situated on soft tegument. Subhumeral setae c 3 lanceolate, 24 (22–24) × 7 (7–8). Hysteronotal shield: greatest length 235 (220–236), width in anterior part 104 (100–104), anterior margin straight or slightly concave, entire surface without pattern. Distance between prodorsal and hysteronotal shields 7 (7–10). Opisthosomal lobes approximately as long as wide at base; posterior ends of lobes roughly rounded, with short and blunt extensions at bases of setae h 2 and h 3. Terminal cleft shaped as a wide inverted U with strongly divergent branches, 17 (16–20) in length. Supranal concavity present, circular. Setae f 2 absent. Setae h 1 situated at level of supranal concavity. Setae h 3 spiculiform, slightly curved, 12 (12–15) long; setae ps 2 65 (62–68) long; setae ps 1 minute, about 10 long, situated near margin of terminal cleft approximately at level of setae ps 2. Distance between bases of dorsal setae: c 2:d 2 97 (92– 100), d 2:e 2 93 (90–96), e 2:h 3 40 (34–40), d 1:d 2 33 (26–33), e 1:e 2 37 (35–40), h 1:ps 2 26 (16–26), h 2:h 2 60 (60– 62), h 3:h 3 42 (42–48), ps 2:ps 2 71 (70–75).

Epimerites I fused into a Y, with short and acute sternum and a pair of short tooth-like lateral extensions; epimerites II with short obtuse-angular extension on inner margin ( Fig. 16 View FIGURE 16 B). Coxal fields I, II without extensive sclerotized areas. Rudimentary sclerites rEpIIa absent. Coxal fields I– III open. Coxal fields IV without sclerotized areas. Epimerites IVa absent. Genital arch of moderate size, 20 (20–22) × 42 (40–44); basal sclerite of genital apparatus with rounded posterior margin; aedeagus sword-shaped, 69 (67–70) long, nearly extending to anterior margin of anal suckers; genital papillae not connected by bases. Genital and adanal shields absent. Anal suckers 13 (11–13) in diameter, corolla smooth. Opisthoventral shields narrow, developed only along lateral margins of opisthosoma; inner margins of these shields with acute extension approximately at midlevel of terminal cleft. Setae ps 3 situated at level of posterior margins of anal suckers, almost on lateral margins of opisthosoma. Distance between ventral setae: 3 b: 3a 10 (10–12), 3 a: 4a 42 (40–44), 4 a:g 46 (42–46), g:ps 3 50 (50–54), ps 3:ps 3 84 (82–86), ps 3:h 3 22 (17– 22).

Femora I, II with ventral crests, other segments of legs I, II without processes. Solenidion σ 1 of genu I 17 (13– 17) long, situated at midlevel of segment; genual setae cG I, II and mG I, II setiform ( Figs. 18 View FIGURE 18 A, B). Setae d of tarsi II, III shorter than corresponding setae f. Tarsus IV 25 (22–25) long, without apical process; seta d situated slightly closer to base than to apex of segment; solenidion φ of tibia IV extending to midlevel of ambulacral disc ( Fig. 18 View FIGURE 18 C).

FEMALE (6 paratypes). Idiosoma, length × width, 475–490 × 160–175, length of hysterosoma 345–355. Prodorsal shield: 120–125 × 126–140, lateral margins with incisions extending to bases of setae se, antero-lateral extensions short and bluntly rounded, posterior margin with short and blunt median extension, surface without pattern; scapular setae se separated by 75–78. ( Fig. 17 View FIGURE 17 A) Setae ve absent. Humeral shields absent. Setae c 2 and cp situated on soft tegument. Setae c 3 lanceolate, 22–24 × 7–8. Distance between prodorsal and hysteronotal shields 20– 25. Anterior and lobar parts of hysteronotal shield separated dorsally by narrow transverse band of soft tegument, but remain connected ventro-laterally ( Fig. 17 View FIGURE 17 B). Anterior hysteronotal shield almost rectangular, anterior margin slightly concave, greatest length 255–272, width at anterior margin 115–135, surface without pattern. Length of lobar region 92–95, greatest width 86–90. Supranal concavity circular. Terminal cleft as a narrow U, extending to level of setae h 2, 53–60 long, width at level of lobar apices 7–9. Setae h 1 on lobar shield, approximately at level of supranal concavity. Setae f 2 absent. Setae h 2 spindle-like, 44–48 × 8–9. Setae ps 1 closer to inner margins of opisthosomal lobes than to outer one. Setae h 3 10–14 long, about 1 / 8 th the length of terminal appendages. Distance between dorsal setae: c 2:d 2 112–115, d 2:e 2 125–130, e 2:h 2 42–48, h 2:h 3 48–52, d 1:d 2 34–44, e 1:e 2 42–45, h 1:h 2 25–27, h 1:h 1 30–35, h 2:h 2 68–72.

Epimerites I fused into a Y, sternum short and acute, without lateral extensions ( Fig. 17 View FIGURE 17 B). Lateral parts of coxal fields II without large sclerotized areas. Epimerites IVa absent. Translobar apodemes of opisthosomal lobes present, narrow, not fused to each other anterior to terminal cleft. Epigynum with poorly developed lateral extensions in posterior part, greatest width 64–66; apodemes of oviporus fused with epimerites IIIa. Pseudanal setae ps 2, ps 3 filiform, setae ps 2 situated posterior to anal opening and widely separated from each other, distance between setae: ps 2:ps 2 60–65, ps 3:ps 3 32–35, ps 2:ps 3 28–34. Primary spermaduct with poorly developed enlargement in proximal part near head of spermatheca; secondary spermaducts 20–25 long, slightly longer than enlargement of primary spermduct ( Fig. 18 View FIGURE 18 E).

Femur I without crest, femur II with ventral crest, other segments of these legs without processes. Solenidion σ 1 of genu I 13–16 long, situated approximately 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 low longitudinal dorsal crest ( Fig. 18 View FIGURE 18 D), genu III without dorsal crest.

Differential diagnosis. Among previously known species, males of Tyrannidectes anairetes   sp. n. are most similar to those of T. berlai Mironov, 2008   described from Myiarchus tyrranulus (Müller)   ( Tyrannidae   ) in Brazil by having short setae h 3 (length less than half the distance between their bases) and by the absence of any pattern on dorsal shields. The new species differs from T. berlai   by the following features: in both sexes setae f 2 are absent, the anterior margin of hysteronotal shield is straight or slightly concave, and fused epimerites I form a short sternum; in males, setae h 3 are spiculiform; in females, the lobar shield is entire and the hysteronotal shields has no any pattern. In both sexes of T. berlai   , setae f 2 are present, the anterior margin of hysteronotoal shield has a deep concavity extending to the level of humeral setae cp, and epimerites I are fused into a narrow U; in males, setae h 3 are narrowly lanceolate; in females, the lobar shield is almost completely separated along median line into two pieces and the anterior hysteronotal shield bears oblique and sparse striae in lateral areas. The loss of setae f 2 in T. anairetes   also distinguishes this species from all other known Tyrannidectes species including new ones described in the present paper.

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