Lepidocyrtus (Fractocyrtus) andensis, Cipola & Viana, 2023
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publication ID |
https://doi.org/ 10.11646/zootaxa.5369.3.3 |
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publication LSID |
lsid:zoobank.org:pub:B16AF2B9-ADB0-4FA3-BA52-838560C328F5 |
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DOI |
https://doi.org/10.5281/zenodo.10169069 |
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https://treatment.plazi.org/id/03B5EB07-870C-FFF3-FF63-FD9467B4A6A3 |
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Plazi |
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scientific name |
Lepidocyrtus (Fractocyrtus) andensis |
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sp. nov. |
Lepidocyrtus (Fractocyrtus) andensis sp. nov.
Figs 6–12 View FIGURE 6 View FIGURE 7 View FIGURE 8 View FIGURE 9 View FIGURE 10 View FIGURE 11 View FIGURE 12 , 19 View FIGURE 19 ; Table 1 View TABLE
Diagnosis. Body depigmented, if present, dark blue pigment on Th II laterally (rarely on Th III), a weak lateral spot present or absent on Abd IV and rarely, on coxae I–III pigmented ( Fig. 6 View FIGURE 6 ); Ant III sense organ club-shape ( Fig. 7A View FIGURE 7 ); head An series with 14–15 mac; series A with 2 supplementary mac between A0 and A2; 5 interocular ciliate chaetae ( Fig. 7B View FIGURE 7 ); clypeal formula with 2 l, 9 f and 3 pf chaetae ( Fig. 7C View FIGURE 7 ); labial papilla E l.p. pointed and short, not reaching base of distal guard appendages papilla ( Fig. 7D View FIGURE 7 ); postlabial chaetotaxy with 3 spines, cephalic groove with 7 chaetae and X2 chaeta present ( Fig. 7E View FIGURE 7 ); Abd III with 5 lateral mac and 27 chaetae on lateral tuft ( Fig. 9A View FIGURE 9 ); Abd IV with 12 lateral mac, 13 median sens and 29 posterior mes ( Fig. 9B View FIGURE 9 ); BP4 region with 25–29 psp ( Fig. 10B View FIGURE 10 ); trochanteral organ with about 34 spine-like chaetae ( Fig. 11D View FIGURE 11 ); collophore anteriorly with 34 and posteriorly with 36 ciliate chaetae; lateral flap with 18 ciliate and 8 smooth chaetae ( Fig. 12A View FIGURE 12 ); dens dorsally with 10–12 proximal spines ( Fig. 12C View FIGURE 12 ).
Type material. Holotype female on slide (UNIANDES): Colombia, Antioquia Department, Jardín municipality, “ Mesenia-Paramillo ” Natural Reserve , 05°29’45”N, 75°53’21”W ( Fig. 19 View FIGURE 19 ), 3.000 m., vii.2020, malaise trap, L Mazariegos coll. GoogleMaps 18 paratypes: 1 male and 6 females on slides and 6 specimens in alcohol (UNIANDES), 3 females ( INPA-CLL 0000303–305 ) and 2 females on slides ( CC / UFRN): same date as holotype. GoogleMaps
Other examined material. 1 specimen preserved in absolute alcohol ( INPA), same date as holotype, except 2.400 m., 29.ix.2022, manual collect in decomposing trunk in the soil, U Rendon coll.
Description. Total length (head+ trunk) of specimens 2.18–2.57 mm (n =4), holotype 2.18 mm. Specimens whitish with violet pigments on distal half or completely of Ant IV and Ant III–II distally (present or absent); dark blue pigment rarely present on Ant I base and eyepatches, Th II–III and Abd IV laterally with or without one weak lateral spot, and rarely one spot present on coxae I–III; eyepatches black (present or absent) ( Fig. 6 View FIGURE 6 ).
Head. Ratio antennae: trunk = 1: 2.53–2.81 (n=4), holotype 1: 2.72; antennal ratio as I: II: III: IV = 1: 1.82–2.07: 1.71–2.05: 2.78–3.28 (n=4), holotype 1: 1.82: 1.71: 2.78. Ant III distally with 2 club-shape sens (sense organ), 3 guard sens and at least 6 finger-shape sens ( Fig. 7A View FIGURE 7 ). Eye B larger than others, G and H smallest, interocular chaetae (p) as mac, others as mes (q, v, r, t); head dorsal chaetotaxy ( Fig. 7B View FIGURE 7 ) with 14–15 ‘An’ (An1a–3), 4–5 ‘A’ (A0–5), 6 ‘M’ (M0–4), 6 ‘S’ (S0, S2–4, S6–7), 3 ‘Ps’ (Ps2–3, Ps5), 4 ‘Pa’ (Pa2–5), 2 ‘Pm’ (Pm1, Pm3), 6 ‘Pp’ (Pp1–6) and 2 ‘Pe’ (Pe3–5?) chaetae, plus 2 extra mac near to A series. Clypeal formula with 2 (l1–2), 9 (f) and 3 (pf0–2) ciliate chaetae, 1 f and pf0 unpaired, l1–2 acuminate, l1–2 and pf0–1 larger, others subequal ( Fig. 7C View FIGURE 7 ). Maxillary palp b.c. thicker and 1.35 larger than the t.a. Labial papilla E l.p. pointed ( Fig. 7D View FIGURE 7 ). Ventral chaetotaxy with about 29 ciliate chaetae and 3 lateral spine-like mic; postlabial chaetotaxy forming three rows with 4 (G1–4), 3–4 (X2–3, X, X4) and 4 (H1–4) chaetae (except X as spine), respectively; cephalic groove with 8 chaetae, b.c. longer ( Fig. 7E View FIGURE 7 ).
Thorax chaetotaxy ( Fig 8A–B View FIGURE 8 ). Th II a, m and p series with 8, 7 and 8 mic, respectively. Th III a, m and p series with 6, 5 and 6 mic, respectively. Ratio Th II: III = 3.11–2.34: 1 (n=4), holotype 2.77: 1.
Abdomen chaetotaxy ( Figs 8C–D View FIGURE 8 , 9A–C View FIGURE 9 ). Abd I a, m and p series with 5, 5 and 2 mic, respectively. Abd II with a, m and p series with 5, 7 and 5 chaetae (plus el), respectively; 1 (m3) inner and 1 lateral (m5) mac; a5 and m2 bothriotricha with 5 and 3 fan-shaped chaetae, respectively. Abd III a, m and p series with 6, 7 and 6 chaetae, respectively; 5 lateral mac presents (pm6, m7, p6–8?); m2 bothriotrichum with 5, bothriotricha a5 and m2 with 9 fan-shaped chaetae between them; lateral tuft with about 27 elongated chaetae. Abd IV series ‘ A ’–‘ r ’ with 5, 5, 5, 6, 4, 2, 5, 4, 4 and 2–7 chaetae, respectively, plus Si and Sm mic; inner region with 2 mac (B5–6) and lateral with 12 mac (D2–3, De3, E1–4p, F1–3p); at least 16 sens (as and ps type I, others type II) and 29 posterior mes. Abd V a, m and p series with 3, 3 and 5 mac (plus 2 chaetae of unknow homology), respectively. Ratio Abd III: IV = 1: 5.57–8.74 (n=4), holotype 1: 5.72.
Body psp distribution ( Fig. 10 View FIGURE 10 ). Dorsal psp: dens proximally with 7 (6). Lateral psp: BP4 with 25–29. Ventral psp: Ant II with 1 (rarely 5) and tenaculum posteriorly with 2 (rarely 1 or 0).
Legs. Subcoxa I with one row of 7–8 chaetae; subcoxa II with 14 chaetae on row ‘a’ and about 16 microchaetae anteriorly, ‘p’ row with 9 chaetae; subcoxa III with one row of 21–22 chaetae and 4 anterior chaetae ( Figs 11A–C View FIGURE 11 ). Trochanteral organ with about 34 spine-like chaetae, 6 anterior, 7 posterior, 16 internal, 1 apical and 4 distal arm ( Fig. 11D View FIGURE 11 ). Tenent hair 0.77 smaller than outer edge of unguis; tibiotarsal smooth chaeta 0.72 smaller than unguiculus length. Ratio unguis III: unguiculus III = 1: 0.61 in holotype.
Collophore ( Fig. 12A View FIGURE 12 ). Anterior side with about 34 ciliate chaetae, 3 mac, 4 mes, 2 thicker chaetae and about 25 thin chaetae of different lengths; posterior side with about 36 ciliated (3 unpaired) of different length and 1 distal smooth chaeta per side; lateral flap with 8 smooth chaetae and 18 ciliate chaetae.
Furcula. Manubrium ventrally with 2 longer subapical and about 22 apical scales, 4 of which are elongated ( Fig. 12B View FIGURE 12 ); manubrial plate with 10–15 ciliate chaetae, 4 inner as mac and 2–4 smaller, others subequal ( Fig. 12C View FIGURE 12 ). Dens dorsally with 10–12 proximal spines, holotype with 10 and 11 ( Fig. 12C View FIGURE 12 ).
Etymology. Refers to the region where the new species was found, Colombian Andes ( Fig. 19 View FIGURE 19 ).
Remarks. Lepidocyrtus (Fractocyrtus) andensis sp. nov. resembles L. (F.) mateosi (see Cipola et al. 2018b: 222) in that the main sensilla of the Ant III sense organ are club-shape, interocular chaetotaxy only with ciliate chaetae, head series A with 2 extra mac, postlabial chaetotaxy with 3 spines and trochanteral organ with about 34 spine-like chaetae ( Table 1 View TABLE ). However, L. andensis sp. nov. differs from this species by the reduced body color pattern or with pigments restricted on Th II–III laterally and coxae, while L. mateosi has pigmented on head to Abd III and manubrium. On head, L. andensis sp. nov. differs by clypeus with 9 f and 3 pf chaetae (12 f and 2 pf in L. mateosi ), labial papilla E l.p. pointed (finger-shape in L. mateosi ) and cephalic groove with 7 chaetae (5 in L. mateosi ). Concerning the abdominal dorsal chaetotaxy of L. andensis sp. nov. differs by having Abd III with 5 lateral mac and 27 elongated chaetae on lateral tuft (3 and 9 respectively in L. mateosi ), Abd IV has 12 lateral mac and 13 median sens (14 and 3 respectively in L. mateosi ), BP4 region with 25–29 psp (20–25 in L. mateosi ), and Abd V with 11 mac (7 in L. mateosi ). Lepidocyrtus andensis sp. nov. also differs by having 10–12 spines dorsally on the dens (14–16 in L. mateosi ), collophore anteriorly with 34 anterior and 36 posterior ciliate chaetae (25 and 43 in L. mateosi ), lateral flaps with 18 ciliate and 8 smooth chaetae, while L. mateosi has 12 ciliate and 15 smooth chaetae. Other differences among the four species are presented in Table 1 View TABLE .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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