Abacarus zoysiae, Flechtmann & Tassi, 2021

Flechtmann, Carlos Holger Wenzel & Tassi, Aline Daniele, 2021, A new species of Abacarus Keifer (Acari: Eriophyidae) from Brazil, Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 61, pp. 1-8 : 2-6

publication ID	https://doi.org/ 10.11606/1807-0205/2021.61.80
publication LSID	lsid:zoobank.org:pub:C130E57D-D367-4878-9896-FA8968570C0C
persistent identifier	https://treatment.plazi.org/id/0399D957-FFB1-5F24-B8A7-FD1B72EB48AB
treatment provided by	Felipe
scientific name	Abacarus zoysiae
status	sp. nov.

Treatment

Abacarus zoysiae sp. nov. ( Figs. 1-7 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 View Figure 6 View Figure 7 )

Holotype: female, Brazil, São Paulo, Ribeirão Preto (21°11′35.3″S, 47°48′03.2″W), col. Flávio Figueiredo, 25 Sep 2020. GoogleMaps

Paratypes: 24 female, 10 males on 14 microscopic preparations, collected with holotype, same locality and collector as holotype.

Diagnosis

The new species is unique in presenting the prodorsal shield shaped as the profile of a five-sided diamond in dorsal view, with a prominent frontal lobe containing eight irregular longitudinal ridges. Shield ornamentation only represented by two admedian lines.With three coxigenital annuli and a short opisthosomal ventral seta II, e, 5-7 long.

Description

Female (N = 6): Body elongate, 182 (171-202) length, 43 (41-50) wide, whitish, frequently covered with abundant white wax-like secretion ( Figs. 1A, 1B View Figure 1 and 7 View Figure 7 ).

Gnathosoma: projecting obliquely downwards, basal pedipalp coxal seta (ep) 4 (3-4), apical dorsal pedipalp genual seta (d), 5 (5-6), chelicerae 18 (16-18).

Prodorsal shield: a five-sided diamond shaped in dorsal view, 40 (38-43) length, 39 (35-43) wide, prominent frontal lobe with 8 (8) longitudinal, irregular, scorings ( Fig. 2 View Figure 2 ). Shield ornamentation limited to two sub-median, parallel lines, with a slight median constriction, extending over entire shield length; otherwise smooth. With elongate anterolateral scorings. Scapular seta tubercles on shield rear margin, 22 (22-23) apart; scapular setae, (sc) 9 (9-10), projecting backwards, extending over 4 (4-5) dorsal opisthosomal annuli.

Coxisternal region: coxisternal plates and cervical plate with a few scattered elongate coarse dashes. Coxal seta I, 1b, 7 (6-8), 11 (9-11) apart; coxal seta II, 1a, 13 (11-13), 4 (5-6) apart; coxal seta III, 2a, 21 (21-27), 19 (19-22) apart; internal coxisternal apodeme (sternal line) 7 (7). Coxisternal annuli 3 (3), with fine, elongate, faint delicate microtubercles ( Figs. 3B View Figure 3 and 5B View Figure 5 ).

Opisthosoma: annuli about equal dorso-ventrally. Dorsal annuli with three longitudinal ridges: middorsal ridge ending about 13 th annulus from rear and extending in a short trough; lateral ridges ending at about 10 th annulus from rear. Caudal 9-10 dorsal annuli evenly arched. Dorsal annuli smooth, without microtubercles.Total dorsal annuli, 54 (54-60).Total ventral annuli, 52 (52-60),with narrow microtubercles, short in anterior annuli and becoming increasingly longer caudally. Lateral seta (c2) 40 (22-40), on annulus 3 (2-3) counting from genitalia rear margin. Ventral seta I (d) 36 (32-44), 27 (27-31) apart, on annulus 12 (12-14); ventral seta II (e) 6 (5-7), 12 (10-13) apart, on annulus 28 (28-35); ventral seta III (f) 24 (19-25), 19 (18-21) apart, on annulus 47 (47-56) or fifth from rear. Accessory seta (h1) 4 (4-5), caudal seta, h2, 40 (38-47). Genitalia 18 (18), 19 (19-10) wide, coverflap basally with two transverse lines of small beadlike granules and one line of larger, elongate, coarse granules; distal part with 10 (10) longitudinal ridges. Genital seta (3a) 14 (13-22) ( Figs. 3A, 3B View Figure 3 , 5A, and 5B View Figure 5 ).

Legs: leg I 27 (26-28); femur 10 (8-10), ventral basifemoral seta (bv) 9 (8-10); genu 5 (4-5), genual seta (l”) 23 (22-25); tíbia 6 (5-6), tibial seta (l’) 6 (5-8), medio-distally; tarsos 5 (5-6), dorsal seta (ft’) 15 (13-15), lateral seta (ft”) 22 (21-14), unguinal seta (u’) 5 (4-5), solenidion (ω) 7 (7-8), distally blunt, empodium simple 6 (6-7), 7-rayed. Leg II 25 (22-27); femur 7 (5-8), seta (bv) 14 (12-15); genu 4 (3-5), seta (l”) 11 (9-12); tíbia 4 (3-4); tarsus 5 (5-6), seta (ft’) 6 (5-8), seta (ft”) 22 (21-23), seta (u’) 4 (4-5), solenidion (ω) blunt distally, 7 (7-8), empodium 6 (6-7), 7-rayed ( Figs. 4A, 4B and 4C View Figure 4 ).

Male (n = 3): Similar to but smaller than female, 148-166 length; 34-40 wide ( Figs. 6A and 6B View Figure 6 ).