Zercon darai Moraza

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: 32-34

publication ID

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

persistent identifier

http://treatment.plazi.org/id/038F6878-FFA2-3410-FCCB-FD6EFC3CE533

treatment provided by

Plazi

scientific name

Zercon darai Moraza
status

sp. nov.

Zercon darai Moraza   sp. nov.

( Figs 6–8 View FIGURES 6 – 8 )

Material examined Holotype. Female: Ireland, Co. Laois, Baunreagh, Sitka spruce ( Picea sitchensis   ) 85 year old plantation (~ 53 º 07' N, 7 º 34 ' W), from lower canopy, slide MC 3 L- 2, altitude: 360 m., 7 November 2005. Holotype deposited in MZUNA. Paratypes: 3 females, 1 male, same locality and date, collected in the canopy and in moss from different heights in the canopy (all deposited at MZUNA); 2 females from 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 middle canopy, deposited at MZUNA.

Diagnosis Anterior margin of ventri-anal shield with two pairs of setae. Dorsal opisthonotal fossae of general size and appearance, with smooth margins. Glands gdJ 4 (Po 3) is 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 with 1 or 2 pinnules, uniform in length and not reaching the bases of following setae; setae Z 1, Z 2 and S 2 similar in shape and length to setae J. Setae Z 3 -Z 5, S 3 -S 5 thickened apically with hyaline sheaths and one pinnule distally, longer than other opisthonotal setae; marginal setae R and other podonotal setae similar in shape. Opisthonotal shield with reticulate pattern at the anterolateral corners, and large pits at the posterior region.

Description FEMALE. Length of idiosoma: holotype 570 (547–578 in 5 paratypes), width 404 (366–418 in 5 paratypes). Podonotal shield: 286 long, 385 wide. Opisthonothum: 283 long, 404 wide. (n = 6).

Dorsum ( Fig. 6 View FIGURES 6 – 8 ) Podonotal shield with reticulate pattern; opisthonotal shield with reticulate pattern on anterior corners; anterior and posterior central area of opisthonotal shield with pits arranged in a reticulate pattern, largest posteriorly. Podonotum with 20 pairs of setae ( Fig. 7 View FIGURES 6 – 8 ); j 1 and r 3 clearly barbed (37 and 47 long, respectively); other podonotal setae with one pinnule (22–25 long); setae r 1 (19) and r 3 on dorsoperitrematal shields; setae s 6 32 long. Gland openings distinct; gdj 2 (po 1) situated near j 2; gdj 4 on line connecting j 4 and z 4; gds 4 postero-paraxial to insertion of setae s 4. Four pairs of podonotal lyrifissures. Opisthonotum with 20 pairs of setae ( Fig. 6 View FIGURES 6 – 8 ): row J with 5 pairs of short, uniform setae ( Fig. 7 View FIGURES 6 – 8 ); row Z with five pairs of setae: Z 1, Z 2, S 1 and S 2 similar in shape to J 1, setae Z 3 -Z 5, S 3 -S 5 thickened, with hyaline sheaths and one pinnule distally; setae Z 3 and S 3 similar in shape and three times as long as Z 1; S 4 reaching beyond lateral margin of idiosoma, similar in length and shape to setae Z 4; Z 5 twice as long as 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. Glands gdz 6 (Po 1) situated 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 enlarge glands gdS 5 (Po 4) behind line connecting setae Z 5 and S 5. Dorsal opisthonotal fossae rounded, of general appearance, similar in size. Dorsal lyrifissures as in figure 5. Length of opisthonotal setae and distance between setal bases within longitudinal I-, Z-, and S-rows as follows: J 1 – J 5 (19–22), Z 1 (15), Z 2 (25), Z 3 (41–42), Z 4 (51), Z 5 (59), S 1 (27), S 2 (24), S 3 (36), S 4 (45), S 5 (49), R (24–25); 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> Z 3 -Z 4 <Z 4 -Z 5; J 1 -J 1 <J 2 -J 2> J 3 -J 3> J 4 -J 4 <J 5 -J 5> J 1 -J 1.

Venter ( Fig. 8 View FIGURES 6 – 8 ). Ventral chaetotaxy, adenotaxy, poroidotaxy and shape of ventral shields typical for genus. Sternal shield 100 long and 75 wide at level of setae st 2, a reticulate surface and straight posterior margin. Sternal setae smooth and thin, with filiform ends; st 1 and st 2 28–29 long; st 3 and st 4 24–26 long. Ventri-anal shield with scamous ornamentation, fused to dorsal shield in posterior margin. Anterior margin of ventri-anal shield with two pairs of setae; 8 pairs of thin and smooth pre-anal setae (17–28), except setae JV 5 barbed, similar in shape to dorsal setae j 1 (36 long). Post-anal seta slightly pilose. Anal valves with vestigial euanal setae, anal lyrifissures present. Glands gv 2 triple, gv 3 conspicuous. Peritreme curved; dorso-peritrematal shield with lines of ornamentation.

MALE. Idiosoma length 452, width 282. Dorsal chaetotaxy, adenotaxy and poroidotaxy similar to female. Sternogenital shield fused with endopodal elements between coxae II –III and III –IV, with 5 pairs of setae (st 1 -st 5). Band between setae st 1 and st 2 weakly sclerotized. Ventri-anal shield with 8 pairs of ventral setae, 2 pairs on anterior margin of the shield.

Notes Z. darai   belongs to the same group of species as Z. curryi   . All of the other species differ from Z. darai   in having similar shape and length of setae S 2 and S 3, among other characters. Both Z. pinicola   and Z. foveolatus   have longer thickened opisthonotal setae apically flattened with hyaline rounded endings; however the relative length between setae Z 3 and Z 2 differs from this character in Z. darai   .

Etymology The species name “ darai   ” refers to Dara O’Mairtin.