Lepidocyrtus (Fractocyrtus) chicomendesi, Cipola & Viana, 2023

Cipola, Nikolas Gioia & Viana, Stéphanie Dos Santos, 2023, Two new species of Lepidocyrtus (Fractocyrtus) Cipola & Bellini (Collembola Entomobryidae, Lepidocyrtinae), with new records and a new name for Lepidocyrtus (F.) americanus Cipola & Bellini, 2018, Zootaxa 5369 (3), pp. 369-399 : 387-388

publication ID	https://doi.org/ 10.11646/zootaxa.5369.3.3
publication LSID	lsid:zoobank.org:pub:B16AF2B9-ADB0-4FA3-BA52-838560C328F5
DOI	https://doi.org/10.5281/zenodo.10169072
persistent identifier	https://treatment.plazi.org/id/03B5EB07-8714-FFF2-FF63-FD5F6731A39E
treatment provided by	Plazi
scientific name	Lepidocyrtus (Fractocyrtus) chicomendesi
status	sp. nov.

Treatment

Lepidocyrtus (Fractocyrtus) chicomendesi sp. nov.

Figs 13–19 View FIGURE 13 View FIGURE 14 View FIGURE 15 View FIGURE 16 View FIGURE 17 View FIGURE 18 View FIGURE 19 , Table 1 View TABLE

Diagnosis. Dark blue pigment on head anteriorly and laterally, Th II to Abd II (present or absent) and Abd IV laterally; coxae I–III, collophore and manubrium with or without pigments; ( Fig. 13 View FIGURE 13 ); Ant III sense organ finger-shape ( Fig. 14A View FIGURE 14 ); head An series with 15–16 mac and A series with 2 supplementary mac; eye patch with 2 scales and 3 interocular chaetae ( Fig. 14B View FIGURE 14 ); clypeal formula as 4 l, 5–6 f and 3–4 pf ( Fig. 14C View FIGURE 14 ); labial papilla E l.p. finger-shape ( Fig. 14D View FIGURE 14 ); postlabial chaetotaxy with 1–2 spines and cephalic groove with 5 chaetae, chaeta X2 absent ( Fig. 14E View FIGURE 14 ); Abd III with 5 lateral mac, lateral tuft with 17 chaetae ( Fig. 16A View FIGURE 16 ); Abd IV with 10 lateral mac, 8 median sens and 30 posterior mes ( Fig. 16B View FIGURE 16 ); BP4 region with 26–29 psp ( Fig. 17B View FIGURE 17 ); trochanteral organ with about 28 spine-like chaetae ( Fig. 18D View FIGURE 18 ); collophore anteriorly with 22–26 and posteriorly with 43 ciliate chaetae; lateral flap with 8–11 ciliate and 8–11 smooth chaetae ( Fig. 18E View FIGURE 18 ); dens dorsally with 14–18 proximal spines ( Fig. 18G View FIGURE 18 ).

Type material. Holotype female on slide ( INPA-CLL 000369 ): Brazil, Acre, Mâncio Lima municipality, National Park "Serra do Divisor", stream of “Véi”, 07°27’32.1”S, 73°37’57.8”W ( Fig. 19 View FIGURE 19 ), 228 m., 19–25.vii.2022, malaise trap, GR Desidério, AMO Pes, JO Silva, RB Pinedo & HLMS Ferreira coll. GoogleMaps 11 paratypes on slides: 1 female ( INPA-CLL 000370 ), same date as holotype, except stream “ Paqueira ”, 07°27’10.3”S, 73°40’03.4”W, 255 m., 18–26.vii.2022 GoogleMaps ; 2 males ( INPA-CLL 000371–72 ): Manoel Urbano municipality, State Park of “Chandless” , T1-3500 grid, 09°24’17”S, 69°54’38”W, 225 m., 05–13.x.2016, pitfall trap, IPS Santos coll. 2 females ( CC/UFRN and INPA-CLL 000373 ) GoogleMaps : idem, except T1-2500, 09°23'52"S, 69°54'58"W, 215 m. GoogleMaps ; 1 female on slide ( INPA-CLL 000374 ): idem, except T2-4500, 09°24’21”S, 69°53’52”W, 234 m. GoogleMaps ; 1 female on slide ( INPA-CLL 000375 ): idem, except T2-1500, 09°23’05”S, 69°54’52”W, 193 m. GoogleMaps ; 3 females on slides ( INPA-CLL 000376–78 ): idem, except T2-2400, 09°23’29”S, 69°59’28”W, 212 m. GoogleMaps ; 1 female on slide ( CC/UFRN): idem, except T2-500, 09°22’40”S, 69°55’12”W, 211 m. GoogleMaps

Other examined material. 1 female on slide ( INPA): Brazil, Amazonas, São Gabriel da Cachoeira municipality, frontier to Colombia, “Querari” Airport in margin of "Uaupés" river, 01°04’51.3”N, 69°50’32.1”W ( Fig. 19 View FIGURE 19 ), 148 m GoogleMaps ., 15–30.vi.2017, malaise trap, D Bandeira coll. 4 females on slides and 28 specimens in alcohol ( INPA): Canutama municipality, “Canutama” Extractive Reserve , 06°32’S, 64°22’W, 60 m GoogleMaps ., 27–30.iv.2013 yellow plate trap, A Somavilla & M Oliveira coll. 1 female on slide ( INPA): Rondônia, Itapuã do Oeste municipality, National Forest of “Jamari”, 09°15’36”S, 62°54’46”W, 105 m GoogleMaps ., 14–28.viii.2018, malaise trap in canopy, ZFM Silva & JA Rafael coll.

Description. Total length (head+ trunk) 1.59–2.16 mm (n= 4), holotype 1.95 mm. Specimens whitish to yellowish with dark blue pigments on distal region or completely (rarely) covering Ant IV, base of Ant I, and anterior and lateral sections of head; a longitudinal spot laterally present or absent on Th II to Abd II (weakly and rarely on Abd III) and another one on Abd IV; Abd V–VI, coxae I–III, collophore and manubrium pigmented or not; eyepatches black ( Fig. 13 View FIGURE 13 ).

Head. Ratio antennae: trunk = 1: 2.78–3.55 (n=4), holotype 1: 3.10; antennal ratio as I: II: III: IV = 1: 1.47–2.20: 1.05–1.74: 2.19–3.17 (n=4), holotype 1: 1.47: 1.05: 2.19. Ant III distally with 2 finger-shape sens (sense organ), 3 guard sens, at least 8 finger-shape sens and 3 swollen inner sens ( Fig. 14A View FIGURE 14 ). Eye A and B larger than others, G and H smaller, 3 interocular mes chaetae (v, p, t) and 2 scales (q and r); head dorsal chaetotaxy ( Fig. 14B View FIGURE 14 ) with 15–16 ‘An’ (An1a–3), 3–5 ‘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 3 ‘Pe’ (Pe3–5?) chaetae, plus 2 supplementary mac between A0 and A2. Clypeal formula with 4 (l1–2, plus 2 unnamed), 5–6 (f) and 3–4 (pf0–3) ciliate chaetae, 1 f and pf0 unpaired, l1–2 acuminate, l1–2 and pf0–3 larger, others subequal ( Fig. 14C View FIGURE 14 ). Maxillary palp b.c. thicker and 1.21 larger than the t.a. Labial papilla E l.p. finger-shape and not nearly reaching middle of terminal papilla ( Fig. 14D View FIGURE 14 ). Ventral chaetotaxy with about 29 ciliate chaetae and 1–2 reduced spine-like mic laterally; postlabial chaetotaxy with 4 (G1–4), 2 (X, X4) and 4 (H1–4) chaetae (except X as spine); cephalic groove with 5 chaetae, b.c. longer ( Fig. 14E View FIGURE 14 ).

Thorax chaetotaxy ( Figs 15A–B View FIGURE 15 ). Th II a, m and p series with 9, 5 and 7 mic, respectively. Th III a, m and p series with 6, 5 and 6 mic, respectively. Ratio Th II: III = 2.43–1.77: 1 (n=4), holotype 2.38: 1.

Abdomen chaetotaxy ( Figs 15C–D View FIGURE 15 , 16A–C View FIGURE 16 ). Abd I a, m and p series with 5, 5 and 1 mic, respectively. Abd II with a, m and p series with 5, 7 and 4 chaetae (p5 and el absent), respectively; 1 (m3) inner and 1 lateral (m5) mac; a5 and m2 bothriotricha with 5 and 2 fan-shaped chaetae, respectively. Abd III a, m and p series with 5, 7 and 8 chaetae, respectively; 5 lateral mac presents (pm6, m7, p6–8?); bothriotrichum m2 with 4 chaetae, bothriotricha a5 and m2 with 7 fan-shaped chaetae between them; lateral tuft with about 16 elongated chaetae. Abd IV series ‘ A ’–‘ r ’ with 5, 4 (B2 absent), 5, 7, 2 (Te?), 5, 2, 5, 3, 2 and 8 chaetae (plus 4 unnamed), respectively, plus mic Si and Sm; inner region with 2 mac (B5–6) and lateral with 9 mac (D3, De3, E2–4p, F1–3); at least 9 sens (as and ps type I, others type II) and 30 posterior mes. Abd V a, m and p series with 2, 3 and 6 mac, respectively. Ratio Abd III: IV = 1: 3.69–5.91 (n=4), holotype 1: 5.91.

Body psp distribution ( Fig. 17 View FIGURE 17 ). Dorsal psp: dens proximally with 4 (possibly 5–6). Lateral psp: BP4 with 26–29. Ventral psp: Ant II with 1 (rarely 2) and tenaculum posteriorly with 2.

Legs. Subcoxa I with one row of 7 chaetae; subcoxa II with an ‘a’ row of 17 chaetae and about 14 chaetae anteriorly, ‘p’ row with 7 chaetae; subcoxa III with one row of 13 chaetae and 1 anterior chaeta ( Figs 18A–C View FIGURE 18 ). Trochanteral organ with about 28 spine-like chaetae, 8 anterior, 8 posterior, 7 internal, 1 apical and 4 distal arm ( Fig. 18D View FIGURE 18 ). Tenent hair 0.72 smaller than outer edge of unguis; tibiotarsal smooth chaeta 0.65 smaller than unguiculus length. Ratio unguis III: unguiculus III = 1: 0.62 in holotype.

Collophore ( Fig. 18E View FIGURE 18 ). Anterior side with 22–26 ciliate chaetae, 3–5 mac, 3–5 mes and 14–18 thin and of different lengths chaetae, 2 as scales (atypical); posterior side with about 43 ciliated (4 unpaired) of different length and 1 distal smooth chaeta per side; lateral flap with 8–11 smooth chaetae and 8–11 ciliate chaetae.

Furcula. Manubrium ventrally with 2 long subapical scales and about 18 short apical scales ( Fig. 18F View FIGURE 18 ); manubrial plate with 7–12 ciliate chaetae, 3–4 inners clearly larger ( Fig. 18G View FIGURE 18 ). Dens dorsally with 14–18 proximal spines, holotype with 17 and 18 ( Fig. 18G View FIGURE 18 ).

Etymology. The epithet is proposed to honors Chico Mendes (in memoriam), an activist and rubber tapper who defended the preservation of Acre's forests (type locality of the new species) in the last century.

Remarks. Lepidocyrtus (Fractocyrtus) chicomendesi sp. nov. resembles L. (F.) amazonaensis nom. nov. (see Cipola et al. 2018b: 211) in having Ant III sense organ finger-shape, 2 scales and 3 interocular chaetae; postlabial chaetotaxy generally with 2 spines, cephalic grove with 5 chaetae; and trochanteral organ with about 28 spine-like chaetae ( Table 1 View TABLE ). However, L. chicomendesi sp. nov. differs from L. amazonaensis in having the head pigmented (depigmented in L. amazonaensis ), a longitudinal spot laterally frequently present on Th II to Abd II (Th III to Abd III in L. amazonaensis ) and another on Abd IV that extends to the manubrium, whereas in L. amazonaensis the Abd IV has a wide lateral spot (reduced or absent) that is disconnected from the manubrium (Figs 2, 13). In chaetotaxy, L. chicomendesi sp. nov. also differs in having head series An with 15–16 mac and series A with 2 supplementary mac (11 and 1 respectively in L. amazonaensis ), postlabial X2 chaeta absent (present in L. amazonaensis ), Abd III with 5 lateral mac and 17 chaetae on lateral tuft (4 and 28 respectively in L. amazonaensis ), Abd IV with 10 lateral mac and 30 posterior mes (6 and 24 respectively in L. amazonaensis ), and BP4 region with 26–29 psp (22–25 in L. amazonaensis ). Lepidocyrtus chicomendesi sp. nov. additionally, differs in having 14–18 spines dorsally on the dens (18–23 in L. amazonaensis ), collophore with 22–26 anterior and 43 posterior ciliate chaetae (20 and 19–28 in L. amazonaensis ) and lateral flap with 8–11 ciliate chaetae (7 in L. amazonaensis ). Other differences among the four species are presented in Table 1 View TABLE .