Salfacarus antsirananensis Vázquez & Klompen, Vazquez & Klompen, 2010

Ma. Magdalena Vázquez G. & Hans Klompen, 2010, The genus Salfacarus (Acari: Opilioacarida) in Madagascar, Zootaxa 2482, pp. 1-21: 5-8

publication ID

http://doi.org/ 10.5281/zenodo.893912

persistent identifier

http://treatment.plazi.org/id/215A879B-FFF1-A251-7683-CA4CFE94F91B

treatment provided by

Plazi

scientific name

Salfacarus antsirananensis Vázquez & Klompen
status

n. sp.

Salfacarus antsirananensis Vázquez & Klompen   n. sp.

( Figs. 2–12 View FIGURES 2 – 5 View FIGURES 6 – 9 View FIGURES 10 – 11 View FIGURE 12 – 13 )

Diagnosis. With an unusually large number of papilliform setae on the palp femur of the adults (15–19, relative to 6–12 in other species). Ovipositor with a pair of large spinose structures and 1–2 pairs of small structures (gland ducts?).

Description. Based on observations on 1 larva, 2 protonymphs, 10 deutonymphs, 3 tritonymphs, 7 females, 4 males.

Gnathosoma. Chelicera ( Fig. 2 View FIGURES 2 – 5 ). Basal segment without setae in L, PN and DN. One seta added in TN, fixed digit with 3 setae in all instars. All setae lightly barbed. Dorsal and antiaxial lyrifissure well developed in nymphs and adults, not observed in L. Fixed digit with 1 distinct tooth, movable digit with 2 teeth and a well developed terminal hook. Movable digit with one ventral denticle in L, PN and most DNs, two in some DNs and TN, and 3–5, in adults. Most distal denticle in adults largest. Internal surface of movable digit with a small sensillum ( Fig. 28 View FIGURES 28 – 31 , arrow).

Subcapitulum ( Fig. 3 View FIGURES 2 – 5 ). All 4 pairs of paralabial setae present: pl1 small, conical; With’s organ (pl2) membranous with a distinct, undivided (not forked) support structure; rutella (pl3) with 1 row of 5 teeth, inserted dorso-laterally; pl4 very small, inserted dorsally on subcapitulum. In addition, 4 circumbuccal (cb), and 10–11 median and subcapitular (vm (in part), lvm, ldm, vp, lvp) setae. Sexual dimorphism absent. L, PN, DN and TN similar but number of median and subcapitular setae smaller, 0, 2, 3, and 7–10, respectively. Lateral lips with distinct canals in all instars (dl1 and/or dl2 of Grandjean (1936)) ( Fig. 3 View FIGURES 2 – 5 , arrow).

Palps. Adult ( Figs. 4–5 View FIGURES 2 – 5 ). Trochanter with 6–7 ribbed, tapering (r-type) setae; femur with 7–8 r-type and 18–19 papilliform or mucronate (= p-type) setae in female, 10–13 r and   15–16 p-type setae in male; genu with 31–43 r and   8 (females) or 5–6 (males) p-type setae. Tibia and tarsus partially fused. Tibia with approximately 12 smooth (s-type) and 51 r-type setae. Palp tarsus with lyrifissures i π and i α. Setation including 3 s, 5 d (leaflike), and approximately 26 ch, 11 sm, and 10 v setae. Sexual differentiation in tibiotarsus absent or indistinct. Pretarsus in shape of a pair of well developed sessile claws. Immatures ( Figs. 6-9 View FIGURES 6 – 9 ). Trochanter: L, PN, 0 setae; DN, 1 (rarely 2) r-type, TN, 3–5. Femur: L 4–5 r-type and 0 p-type setae; PN, 3–4 r and   1–2 p; DN, 3–4 r and   2–3 p; TN, 3–5 r and   5– 9 p. Genu: L, 8 r and   0 p setae; PN, 6 r and   1 p; DN, 8–9 r and   0–2 p; TN, 15 r and   2– 3 p. Tibia: L, 11 setae; PN, 12; DN, 28; TN, 34. Palp tarsus of L, PN, DN and TN with, respectively, 0, 2, 3 and 4 d setae; L with 2 s setae, other instars with 3; numbers of v, ch, and sm setae not scored for immatures.

Idiosoma. Anterior dorsal shield of adults with 78–92 (N=3) papilliform setae, and two pairs of eyes. Lyrifissures absent. Rostrum more or less blunt. L, PN, and DN with, respectively, 24, 24–28, and 44–54 shield setae (setae could not be counted in tritonymph). Remaining idiosoma with lyrifissures arranged in more or less transverse rows. Setation limited to 1 dorsal and 2 ventral setae on preanal segment in L and PN; subsequent instars all with more than 200 papilliform setae. Setae predominantly mid-dorsal and mid-ventral. Anal valves each with 21–22 papilliform setae in adults; L, PN, DN and TN with, respectively, 1, 2, 6–10, and 9–11 setae on each valve.

Sternitogenital region ( Figs. 10-11 View FIGURES 10 – 11 ). Sternal verrucae in adults with 1 long, tapering, and 4 (rarely 3–6) shorter setae each. Remaining sternal area with 2 pairs of long tapering and 8–9 (female) or 4-6 (male) pairs of papilliform setae, plus 3 pairs of lyrifissures (two pairs very large, the third smaller; all different in shape and size from “standard” opisthosomal lyrifissures). L, DN and TN with, respectively, 0, 1, and 3–4 shorter setae on sternal verrucae, and 0, 1, and 4–8 papilliform setae in remaining sternal area (numbers unclear in PN).

Pregenital capsules of adults with 1 long tapering (lt) and 4–5 (rarely 6) papilliform setae each (0, 2, and 2–4 papilliform setae, respectively, in L, DN and TN). Pregenital area and genital sclerite in male with, respectively, 6–9 papilliform and 7–10 ribbed, tapering setae. Pregenital and genital areas in female with, respectively, 2 papilliform and 0 setae. Numbers for the L, DN and TN, respectively, 0 and 0, 0 and 0, 0–1 and 0–2. Ovipositor ( Fig. 12 View FIGURE 12 – 13 ). Without long, lightly barbed terminal setae. With two large spinose basal structures and 1–2 pairs of very small structures (gland ducts?).

Legs. Tarsi II each with a dorsal bifurcate seta and two smooth sensilla resembling solenidia. Tarsi II –IV of adults with distinct acrotarsus; first visible on tarsi II –III in TN, on tarsi IV in DN. Trochanters III –IV subdivided in TN and adults. Pretarsi II –IV each with two pairs of setae and a pair of claws.

Collection information. Multiple numbers refer to multiple slides representing a single, dissected, individual. Holotype female ( OSAL007754–57 View Materials ), MADAGASCAR: Antsiranana, Forêt de Orangea , 3.6 km 128° SE Remena, 90 m, 12°15’32”S 49°22’29”E, coll. Fisher, B L & Griswold, C E, 22–28 Feb 2001, ex littoral rainforest, sifted litter (BLF3200) GoogleMaps   . Paratypes, same data as holotype: L ( OSAL007728 View Materials ), PN ( OSAL007729 View Materials ), PN ( OSAL007730 View Materials ), DN ( OSAL007731 View Materials ), DN ( OSAL007736 View Materials ), DN ( OSAL007739 View Materials ), DN ( OSAL007740–41 View Materials ), DN ( OSAL007746 View Materials ), TN ( OSAL007732–33 View Materials ), TN ( OSAL007742–43 View Materials ), TN ( OSAL007744–45 View Materials ), TN ( OSAL007734–35 View Materials ), TN ( OSAL007737–38 View Materials ), TN ( OSAL007747–48 View Materials ), TN ( OSAL007749 View Materials ), TN ( OSAL007750–51 View Materials ), F ( OSAL007752–53 View Materials ), F ( OSAL007766 View Materials ), F ( OSAL92012–13 View Materials ), F ( OSAL92014–16 View Materials ), F ( OSAL92017–18 View Materials ), F ( OSAL92022–23 View Materials ), M ( OSAL007758–59 View Materials ), M ( OSAL007760–61 View Materials ), M ( OSAL007762–63 View Materials ), M ( OSAL92019 View Materials ) GoogleMaps   . Same locality, coll. Boutin, L J, 22 Feb 2001, ex remnant dry forest: M (OSAL007764–65), M (OSAL007767).

Additional material (non-paratype): MADAGASCAR: Antsiranana, Montagne des Français , 7.2 km 142° SE Antsiranana, elev. 180 m, 12°19’22”S 49°20’17”E, coll. Boutin, L J, 23–25 Feb 2001, ex unknown: M ( OSAL007768–7770 View Materials ), M ( OSAL007771–7772 View Materials ), F ( OSAL007773 View Materials ) GoogleMaps   . MADAGASCAR: Antsiranana, R.S. de l'Ankarana, 22.9 km 224° SW Anivorano Nord, Camp Anglaise, elev. 80 m, 12°54’32”S 49°06’35”E, 10–16 Feb 2001, coll. Boutin, L J, ex general collecting: TN ( OSAL007774–7776 View Materials ), M ( OSAL007777–7778 View Materials ), M ( OSAL007781–7782 View Materials ), M ( OSAL007783–7784 View Materials ) GoogleMaps   ; same locality, coll. Fisher, B L & Griswold, C E, 10–16 Feb 2001, ex tropical dry forest; sifted litter (EF19, BLF2858): M ( OSAL007779–7780 View Materials ). GoogleMaps  

Deposition of types. Holotype female at CAS ( CAS 18500 View Materials ) (4 slides OSAL 007754–57). Other specimens at CAS, OSAL, UQRoo.

Etymology. The species is named after the province of Antsiranana in which all available collections were made.

CAS

California Academy of Sciences

OSAL

Ohio State University Acarology Laboratory