Neocarus calakmulensis Vázquez & Klompen, 2009

Vázquez, Magdalena & Klompen, Hans, 2009, New species of New World Opilioacaridae (Acari: Parasitiformes) with the description of a new genus from the Caribbean region., Zootaxa 2061, pp. 23-44 : 25-29

publication ID

https://doi.org/ 10.5281/zenodo.186823

DOI

https://doi.org/10.5281/zenodo.6224734

persistent identifier

https://treatment.plazi.org/id/68339B70-0055-BA54-FF12-FD2BFF17FCD3

treatment provided by

Plazi

scientific name

Neocarus calakmulensis Vázquez & Klompen
status

n. sp.

Neocarus calakmulensis Vázquez & Klompen n. sp.

( Figs. 1–19 View FIGURES 1 – 4 View FIGURES 5 – 16 View FIGURES 17 – 18 View FIGURES 19 – 20 )

Diagnosis. Palp tarsus with 5 pairs of foliate setae (4 in N. orghidani and N. nohbecanus ). Area between sternal and genital verrucae with 0–1 pairs of long, tapering setae (1–2 pairs in all other Neocarus spp.). Female with 2 setae in pregenital area, male with stout, blunt setae in genital area. Ovipositor without terminal setae.

Description. Based on observations on 5 females, 4 males, 5 tritonymphs, 3 deutonymphs, 5 protonymphs, 1 larva.

Gnathosoma . Chelicera ( Fig. 1 View FIGURES 1 – 4 ). Basal segment without setae in larva, protonymphs, and most deutonymphs. One seta present in one deutonymph, and in all tritonymphs and adults, fixed digit with 3 setae in all instars. Some setae lightly barbed, more obviously so in later instars. Dorsal and antiaxial lyrifissure well developed in nymphs and adults, unclear in larva. Fixed digit with 1 tooth, movable digit with 1–2 teeth and a well developed terminal hook in nymphs and adults, digits poorly developed in larva. Movable digit with 1 small denticle on ventral margin in nymphs and adults, none observed in larva.

Subcapitulum ( Figs. 2 View FIGURES 1 – 4 , 5–8 View FIGURES 5 – 16 ). All 4 pairs of paralabial setae present in adults: pl 1 small, conical; With's organ (pl 2) membranous, discoid; rutellum (pl 3) with 1 row of 5 teeth, inserted dorso-laterally; pl 4 small but distinct, inserted dorsal on subcapitulum. In addition, 4 circumbuccal (cb), and 8–10 median and subcapitular (vm (in part), lvm, ldm, vp, lvp) setae. No sexual dimorphism observed. Larva, proto-, deuto-, and tritonymphs similar, but pl 4 minute in early instars, only 2 cb setae in larva, and number of median and subcapitular setae smaller, 0, 2, 3, and 5–6, respectively. Lateral lips in all instars with distinct canals in all instars (dl 1 and/or dl 2 of Grandjean (1936 )).

Palp. Adults ( Figs. 3–4 View FIGURES 1 – 4 ). Trochanter with 2 to 5 ribbed, tapering setae (= r-type) setae; femur with 6–8 papilliform (= p-type) and 9–18 (most 10–12) r-type setae (detail of structure of r and p-type setae in Fig. 39 View FIGURES 38 – 41 ); genu with 2–5 p and 17–34 (most 21–29) r setae. Tibia and tarsus partially fused. Tibia with 8 smooth (= s type) and 51 r-type setae. Palp tarsus with lyrifissures i π and i α. Setation includes 3 s, 5 d, 6 v, 17 ch, and 10–11 sm setae. Pretarsus in shape of a pair of well developed sessile claws. No distinct sexual differentiation observed; males generally with fewer trochanteral setae, but ranges overlapping. Palp setation immatures ( Figs. 9–16 View FIGURES 5 – 16 ). Trochanter: larva and protonymph 0; deutonymph 1; tritonymph 2 (rarely 3); femur: larva 6 rtype setae; protonymph 5 r and 1 p-type seta(e); deutonymph 5–6 r plus 2–3 p; tritonymph 7–10 r plus 4 (rarely 5) p; genu: larva and protonymph 7 r; deutonymph 7–8 r; tritonymph 12–15 r plus 0– 2 p. Tarsus of larva and protonymph with 2, deuto- and tritonymph with 3 s setae; larva, proto-, deuto-, and tritonymphs with, respectively, 0, 2, 3, and 4 d setae. Setation of tibiae as well as the number of tarsal v, ch, and sm setae not scored for immatures.

Idiosoma. Color. Dark blue and violet stripes on both body and legs. Body often with brownish background reflecting ingested food.

Dorsum. Anterior dorsal shield in adults with two pairs of eyes, and 59–100 stout, ribbed setae; lyrifissures absent. Larva, proto-, deuto-, and tritonymphs similar, with, respectively, 32, 28–32, 39 – 46, and 58–70 shield setae. Dorsal idiosoma between the shield and the preanal segment without setae, but with numerous lyrifissures arranged in transverse rows. Preanal segment with 1 dorsal and 2 ventral setae; anal plates in adults each with 6–9 (usually 7–8) stout, ribbed setae. Anal plates of larva, proto-, deuto-, and tritonymphs each with, respectively, 2, 2, 4–6, and 6–8 setae.

Sternitogenital region ( Figs. 17–18 View FIGURES 17 – 18 ). Sternal verrucae in adults each with 1 long, barbed and tapering and 1–3 smaller setae. Remaining sternal area with 0–1 pairs of long, tapering setae, 5–7 pairs of stout, ribbed setae, and 3 pairs of lyrifissures (two pairs very large, the third smaller; all different in shape and size from "standard" opisthosomal lyrifissures). Pregenital capsules each with 1 long tapering and 3–4 (rarely 5) stout, ribbed setae. Pregenital and genital areas in male with, respectively, 2–6 and 3–8 short stout, ribbed setae. Pregenital area in female with 2 (rarely 3) short, stout ribbed setae; genital area without setae. Immatures, larva, proto-, deuto-, and tritonymph, with respectively, 0, 0, 1, and 2 smaller setae on sternal verrucae, and 0, 0, 1–2, and 2–3 stout ribbed setae on the genital verrucae. None of the immatures carried setae in the pregenital or genital region. Ovipositor ( Fig. 19 View FIGURES 19 – 20 ) simple, without terminal setae, but with a single pair of gland-like structures. Number of lobes could not be determined as the ovipositor in all specimens examined was invaginated.

Legs. Legs relatively long. Ratio of legs I to idiosoma approximately 2.5, legs IV to idiosoma about 2.1. No obvious sexual dimorphism observed. Tarsi I without distinct acrotarsus but, starting with protonymph, with a distinct basitarsus. Broad sensillum with "crown-like" tip ( Fig. 1 View FIGURES 1 – 4 S in Vázquez and Klompen (2003 )) in main sensillar field. Pretarsi I with well developed sessile claws; without setae. Tarsi II in nymphs and adults each with a distinct dorsal bifurcate seta and two smooth sensilla, the basal (shorter) one of which resembling a solenidion (both sensilla inserted on acrotarsus in tritonymphs and adults). Pretarsi II–IV each with two pairs of setae and a pair of claws. Acrotarsus on tarsi II–III appears in tritonymphs and adult, on tarsi IV in deutonymph. Distinct divided trochanter on legs IV first observed in deutonymph, on legs III in tritonymph.

Collection information. Multiple specimen numbers refer to multiple slides representing a single, dissected, individual. Holotype female ( OSAL 0007618– 7620), MEXICO: Campeche, Calakmul Biosphere Res. (18 ° 6 ' 30 "N 89 ° 48 'W), zona nucleo, km 34, high tropical forest, coll. Vázquez, M., 16 Jun 2005, ex litter between stones, coll. no. AL013456 View Materials . Paratypes (all from Calakmul Biosphere Res. and collected by M. Vázquez). Same collection data as holotype, PN ( OSAL 0007592), M ( OSAL 0007628–07629); same locality, 7 Feb 2001, ex litter & bark with moss, AL013285 View Materials : DN ( OSAL 0007595); 7 Feb 2001, ex litter on stones, AL013287 View Materials : PN ( OSAL 0007587); 7 Feb 2001, ex litter, AL013288 View Materials , TN ( OSAL 0007599); 10 Jul 2001, ex decomposing bark, AL013283 View Materials : PN ( OSAL 0007588), DN ( OSAL 0007594), F ( OSAL 0007611– 7612); 2 Jul 2002, ex unknown, AL013289 View Materials : PN ( OSAL 0007591), PN ( OSAL 0007593), F ( OSAL 0007613– 7614), F ( OSAL 0007615– 7616); 20 Jun 2003, ex detritus on tree trunk, AL013300 View Materials : TN ( OSAL 0007606); 20 Aug 2003, ex litter on tree trunk; high tropical forest, AL013284 View Materials : TN ( OSAL 0007608), M ( OSAL 0007623); 1 Oct 2003, ex litter, AL013286 View Materials : DN ( OSAL 0007598); Bel-Ha, medium high tropical forest, 5 Jul 2005, ex litter on slope, AL013282 View Materials : L ( OSAL 0007586), TN ( OSAL 0007600– 7601), TN ( OSAL 0007602– 7603), TN ( OSAL 0007604– 7605), M ( OSAL 0007627); restoration area, medium high tropical forest, km 34, 17 Jan 2002, ex litter on slope; AL013293 View Materials : TN ( OSAL 0007610); same locality, 20 Aug 2003, ex litter on tree trunk nr. seaside lagoon, AL013292 View Materials : PN ( OSAL 0007590), TN ( OSAL 0007597), TN ( OSAL 0007607); 20 Aug 2003, ex detritus on decomposing bark, AL013294 View Materials : PN ( OSAL 0007589), DN ( OSAL 0007596), TN ( OSAL 0007609), F ( OSAL 0007617), M ( OSAL 0007624); high tropical forest, 17 Jan 2002, ex litter under and between stones, AL013295 View Materials : M ( OSAL 0007621– 7622); same locality, 7 Oct 2003, ex litter on stones, AL013297 View Materials : M ( OSAL 0007625– 7626).

Additional material (non-paratype): MEXICO: Quintana Roo, La Union, Cenote Cocodrilo Dorado, 17 ° 54 'N 88 ° 53 'W, coll. Vázquez, M., 7 Mar 2002, ex slope cenote; very humid medium high tropical forest, AL013276 View Materials : PN ( OSAL 0007631); same locality and collector, 21 Nov 2002, AL013277 View Materials : TN ( OSAL 0007633); 6 Nov 2001 ex litter slope cenote, AL013278 View Materials : DN ( OSAL 0007632), M ( OSAL 0007634), F ( OSAL 0007635), F ( OSAL 0007636– 7637), M ( OSAL 0007638– 7639), M ( OSAL 0007640).

Deposition of types. Holotype female (slides OSAL 0007618– 7620) and one paratype male (slides OSAL 0007621– 7622) at UNAM. Other paratypes at OSAL, UQROO.

Etymology. The specific name is derived from the primary collection locality, the Calakmul Biosphere Reserve.

OSAL

Ohio State University Acarology Laboratory

UNAM

Universidad Nacional Autonoma de Mexico