Zercon curryi Moraza, Arroyo & Bolger

Moraza, María Lourdes, Arroyo, Julio & Bolger, Thomas, 2009, Three new species of mites (Acari: Zerconidae) from canopy habitats in Irish forests, Zootaxa 2019, pp. 29-39: 30-32

publication ID

http://doi.org/ 10.5281/zenodo.186058

persistent identifier

http://treatment.plazi.org/id/038F6878-FFA0-3416-FCCB-FF6BFE78E65F

treatment provided by

Plazi

scientific name

Zercon curryi Moraza, Arroyo & Bolger
status

sp. nov.

Zercon curryi Moraza, Arroyo & Bolger   sp. nov.

( Figs 1–5 View FIGURES 1 – 5 )

Material examined Holotype: Female: Ireland, Co. Offaly, Kinnity oak ( Quercus petraea   ) forest (~ 53 º 10 'N, 7 º 26 ' W), slide SBO- MCM, from moss collected in the middle canopy, altitude 200 m., 2 August 2007 (deposited at MZUNA). Paratypes: 6 females, 1 male, same locality and date as holotype, collected from moss mats occurring at different heights in the tree canopy (4 females and the male deposited at MZUNA, 2 females at UCD); 8 females, Ireland, Co. Kerry, Rennadinna Wood ( Taxus baccata   ) in Killarney National Park (~ 52 º 02' N, 9 º 31 'W), altitude 30 m., 6 July 2007, 2 from canopy branches (deposited at MZUNA) and 6 from moss in the canopy (3 deposited at UCD, 3 at MZUNA); 2 females, Ireland, Co, Kerry, Tomies Wood ( Quercus petreae   ) in Killarney National Park (~ 52 º 03'N, 9 º 35 'W), altitude 60 m., 5 July 2007, from moss mats in the lower canopy (deposited at UCD).

Diagnosis Anterior margin of ventri-anal shield with two pairs of setae. Dorsal fossae of general size and appearance, with smooth margins. Glands gdJ 4 (Po 3) situated between J and Z setal rows, on the line connecting setae J 4 and Z 4; glands gdZ 2 (Po 2) on the line connecting setae Z 2 and S 3. Setae J 1 -J 5, Z 1, Z 2 and S 2 smooth or with 1 or 2 pinnules, nearly equal in length and not reaching the bases of following setae. Setae Z 3 -Z 5, S 3 -S 5 strongly thickened at the end, solid club-like setae and longer than other opisthonotal setae; marginal setae R similar in shape other podonotal setae. Opisthonotal shield with reticulate pattern of small fossae (pits).

Description FEMALE. Length of idiosoma: holotype 553 (509–558 in 4 paratypes), width 377 (313–380 in 4 paratypes). Podonotal shield: 264 μm long, 377 μm wide. Opisthonothum: 289 μm long, 377 μm wide. (n = 5).

Dorsum ( Fig. 1 View FIGURES 1 – 5 ). Podonotal shield with reticulate pattern; anterior corners and border of opisthonotal shield with reticulate pattern; central and posterior half of opisthonotum with small pits arranged in a reticulate pattern. Podonotum with 20 pairs of smooth, rod-like setae, uniform in length; setae r 1 and r 3 on dorso-peritrematal shields. Setae s 6 may be club-like in shape or similar in shape to other marginal podonotal setae. Gland openings distinct; gdj 2 (po 1) situated near j 2; gdj 4 (po 2) on line connecting j 4 and z 4; gds 4 (po 3) posterior and paraxial to insertion of setae s 4. Four pairs of podonotal lyrifissures. Opisthonotum with 20 pairs of setae: J setal rows with 5 pairs of short, uniform setae ( Fig. 2 View FIGURES 1 – 5 ); setae J 5 shortest; Z setal rows with five pairs of setae: setae Z 1, Z 2 and S 2 similar in shape and length to J 1, setae Z 3 = S 3, club-like in shape and longer than Z 1; setae S 4 reaching beyond lateral margin of idiosoma and similar in length and shape to setae Z 4; setae Z 5 club-like, twice as long as than setae J. Marginal setae S 1 and R 1 -R 6 not reaching beyond bases of following marginal setae, similar in shape to other marginal podonotal setae ( Fig. 2 View FIGURES 1 – 5 ). Glands gdz 6 (Po 1) on line connecting setae z 6 and Z 1, glands gdZ 2 (Po 2) on line connecting setae Z 2 and S 3; glands gdJ 4 (Po 3) on line connecting setae J 4 and Z 4, and enlarged glands gdS 5 (Po 4) ( Fig. 3 View FIGURES 1 – 5 ) behind line connecting setae Z 5 and S 5. Dorsal opisthonotal fossae rounded, of general appearance, similar in size, saddle-like and with smooth anterior margin. Dorsal lyrifissures as in Fig. 1 View FIGURES 1 – 5 .

Length of the opisthonotal setae and distance between setal bases within longitudinal I-, Z-, and S-rows as follows: J 1 – J 5 (20–23), Z 1 = Z 2 (22), Z 3 (30–31), Z 4 (34), Z 5 (43–44), S 1 (16–18), S 2 (22), S 3 (29), S 4 (34), S 5 (44), R (18); J 1 -J 2 = J 2 -J 3 = J 3 -J 4 = J 4 -J 5 (40), Z 1 -Z 2> Z 2 -Z 3 (34) <Z 3 -Z 4 <Z 4 -Z 5 (74), S 4 -S 5 (54); J 1 - J 1 <J 3 -J 3 = J 4 -J 4 = J 5 -J 5 <J 2 -J 2.

Venter ( Fig. 4 View FIGURES 1 – 5 ). Ventral chaetotaxy, adenotaxy, poroidotaxy and shape of ventral shields are typical for the genus. Sternal shield 76 long, 83 wide at level of setae st 2; posterior margin slightly concave. Sternal setae smooth and thin, with filiform ends; st 1 and st 2 34 long; st 3 and st 4 20–23 long; st 4 off the shield. Ventri-anal shield with scamous ornamentation in posterior area and fused to dorsal shield; anterior margin of ventri-anal shield with two pairs of setae; 7–8 pairs of thin and smooth pre-anal setae (20–22 long). Setae JV 5 have similar shape to other dorsal thickened setae (32 long). Post-anal seta slightly pilose. Anal valves with vestigial euanal setae and anal lyrifissures present. Glands gv 2 double and gv 3 conspicuous. Peritreme straight with bent anterior tip. Dorso-peritrematal shield with lines of ornamentation.

MALE. Body length 408 μm, width 270 μm. Dorsal chaetotaxy, adenotaxy and poroidotaxy as in the female. Sternogenital shield fused with endopodal elements between coxae II –III and III –IV ( Fig. 5 View FIGURES 1 – 5 ); with five pairs of setae (st 1 –st 5), and a lightly sclerotized band between setae st 1 and st 2. Ventri-anal shield with 8 pairs of ventral setae, two pairs on the anterior margin.

Notes Z. curryi   belongs to a group of species with a full complement of opisthonotal setae which are heterogeneous in size and shape (series J uniform), glands Po 2 in position gdZ 2, glands Po 3 in position gdJ 4 (on the line connecting setae J 4 and Z 4), and setae Z 1 and Z 2 shorter than the other setae of this series. Within this group, four species have several opisthonotal setae with modified (spatulate or oar-like) tips: Z. andrei Sellnick   , Z. berlesei Sellnick   , Z. foveolatus Halašková   and Z. pinicola Halašková. All   of these species are distinguished from Z. curryi   by the different shape of longer opisthosomal setae and in the similar shape and length of setae S 2 and S 3, among other characters. In Z. andrei   the greater part of the opisthonotal surface is densely covered with large pits, longer setae are bicarinate before the apical thickened ending, and setae Z 3 are about 3 times as long as needle-like Z 2; Z. berlesei   has longer opisthonotal thickened setae, smooth, apically flattened and rounded; setae Z 3 are twice as long as than needle-like setae Z 2; in Z. pinicola   the longer thickened setae are apically flattened with hyaline ends and setae Z 3 are about 2.5 times as long as smooth setae Z 2; Z. foveolatus   also has longer thickened setae apically flattened with hyaline ending and Z 3 are three times as long as Z 2.

Etymology The species is named in honor of Prof. James P. (Jim) Curry (University College Dublin), colleague and friend.

MCM

MACS Collection of Microorganisms

UCD

University of California, Davis