Trogolaphysa amazoccidentalensis, Cipola & Morais & Bellini, 2022

Cipola, Nikolas Gioia, Morais, José Wellington De & Bellini, Bruno Cavalcante, 2022, Survey of Trogolaphysa Mills (Collembola, Paronellidae) of the Brazilian Amazon including five new species and the description of the dorsal chaetotaxy of the first instar, Zootaxa 5093 (3), pp. 251-295 : 253-257

publication ID	https://doi.org/ 10.11646/zootaxa.5093.3.1
publication LSID	lsid:zoobank.org:pub:3292633A-E98B-43F5-9E08-E1576E73EA45
DOI	https://doi.org/10.5281/zenodo.5911081
persistent identifier	https://treatment.plazi.org/id/225ED008-7D3C-0F6B-49A6-00899556F3AF
treatment provided by	Plazi
scientific name	Trogolaphysa amazoccidentalensis
status	sp. nov.

Treatment

Trogolaphysa amazoccidentalensis View in CoL sp. nov. Cipola

Figs 2–7 View FIGURE 2 View FIGURE 3 View FIGURES 4 View FIGURE 5 View FIGURE 6 View FIGURE7 , Table 1 View TABLE

Diagnosis. Body with pigment on lateral margin of Th II–III, coxae, and collophore ( Fig. 2A View FIGURE 2 ); Abd IV with one central trapezoid-shape spot ( Fig. 2B View FIGURE 2 ); Ant IV not annulated ( Fig. 3A View FIGURE 3 ); Ant III with 1 elongated thin sens on dorsal side ( Fig. 3B View FIGURE 3 ); Ant II with 3 dorsal mac ( Figs 3B View FIGURE 3 ); Ant I devoid of dorsal mac; head mac A0, A2, Pa5 and Pm3 present ( Fig. 3D View FIGURE 3 ); prelabral chaetae ciliate; labral papillae absent; labial papilla E with l.p. acuminate and reaching the base of a.a. ( Fig. 3C View FIGURE 3 ); basolateral and basomedian labial fields with chaetae M1–2, E and L1–2 ciliate, r reduced ( Fig. 3E View FIGURE 3 ); postlabial X chaeta present ( Fig. 3E View FIGURE 3 ); Th II–Abd IV with 1+5, 0 | 0, 1+1–2, 1+3–4 and 4+9 mac, respectively; Abd IV with 7 sens ( Fig. 4 View FIGURES 4 ); femur I–II with 4 inner mac and femur III with an inner row of 5 unmodified mac ( Figs 5E–F View FIGURE 5 ); unguis I–III b.t. projected and larger, m.t. next to b.t., a.t. absent; unguiculus I–III lamellae smooth and acuminate ( Fig. 5G View FIGURE 5 ); mucro with 4 teeth.

Description. Total length (head + trunk) of the specimens 0.81–1.16 (n=4), holotype 1.16 mm. Specimens white or yellowish with dark blue pigments on antennae, lateral borders of Th II–III to coxae, collophore and Abd IV with one central trapezoid-shape spot; eyepatches black ( Fig. 2 View FIGURE 2 ). Scales present on Ant I to proximal ⅓ of Ant II.

Head. Antennae shorter than the trunk length ( Fig. 2 View FIGURE 2 ); ratio antennae: trunk = 1: 1.72–2.00 (n=4), holotype 1: 2.00; antennal segments ratio as I: II: III: IV = 1: 1.31–1.88: 1.12–1.25: 2.04–2.59, holotype 1: 1.63: 1.12: 2.21. Ant IV not annulated, with at least 5 sens types, 1 subapical thicker and 2 normal finger-shaped, 2 elongated and thin, 1 minute rod and numerous pointed or weakly pointed, no apical bulb or subapical organite ( Fig. 3A View FIGURE 3 ). Ant III organ with 2 elongated sens, at least 3 acuminate sens and ciliated chaetae; 1 elongated thin sens only on dorsal side, no mac on either side ( Fig. 3B View FIGURE 3 ). Ant II dorsally with 3 mac, no ventral mac or elongated thin sens ( Figs 3B View FIGURE 3 ). Ant I devoid of dorsal mac, but with 3 smooth mic at base. Prelabral chaetae ciliate; labral a1 chaeta not thicker, a and m chaetae subequals in length, p0–2 longer; labral papillae absent. Eyes A–F subequal, eyes G and H much smaller; 5 ‘IO’ chaetae; head dorsal macrochaetotaxy with 13 ‘An’ (An1a–3p), 2 ‘A’ (A0, A2), 0 ‘M’, 0 ‘S’, 1 ‘Pa’ (Pa5), and 1 ‘Pm’ (Pm3) mac ( Fig. 3D View FIGURE 3 ). Labial papilla E with l.p. acuminate and reaching the base of a.a. ( Fig. 3C View FIGURE 3 ); papilla H with 2 hypostomal appendix smooth and acuminate. Maxillary palp with b.c. of same length than t.a. Basolateral and basomedian labial fields with chaetae M1–2, E and L1–2 ciliate, r reduced on a club-shaped basis ( Fig. 3E View FIGURE 3 ). Head ventrally with about 20–21 ciliate chaetae, 12–13 larger, acuminate and finely ciliate and 8 smaller and ciliate, none modified; postlabial formula with 4 (G1–4), 1 (X) 4 (H1–4), 3 (J1–3) chaetae; proximal region of the cephalic groove with 2 elongated acuminate chaetae, plus 4–5 chaetae on a transversal row respectively, near to b.c. ( Fig. 3E View FIGURE 3 ).

Thorax dorsal chaetotaxy ( Fig. 4A View FIGURES 4 ). Th II a and p series with 1 (a5) and 5 (p3 complex) mac, respectively; m series with 3 mic (m1–2, m4). Th III a, m and p series with 1 (a2), 1 (m6) and 4 (p1–3, p6) mic respectively. Ratio Th II: III = 1.20–1.18: 1 (n= 4), holotype 1.20: 1.

Abdomen dorsal chaetotaxy ( Figs 4B–C View FIGURES 4 ). Abd I a, m and p series with 2 (a2, a6), 4 (m2–4, m6) and 1 (p6) mic, respectively. Abd II a, m and p series with 2 (a2–3), 4 (m3, m5–7) and 2 (p6–7) chaetae, respectively, m3 and m5 as mac, p6 mac or mic. Abd III a, m and p series with 3 (a2–3, a7), 5 (m3, am6, pm6, m7–7i) and 4 (p6–8) chaetae, respectively; m3, pm6, p6 and p7 as mac, am6 mac or mic; m2 bothriotrichum with 2 accessory chaetae, and a5 and m5 bothriotricha with 7 accessory chaetae between them. Abd IV with 4 medial mac on series A–C (A4–5, B5–6) and 9 lateral mac on series T–Fe (D3, E2–4, F2–3, Fe2–3 and 1 of unclear homology); about 7 sens (as and ps type I, and 5 medial type II), and 10 posterior mes. Abd V a, m, pa, p and pp series with 2 (a5–6), 4 (m2–3, m5–5a), 2 (p6ai, p6ae), 4 (p1, p3–5) and 1 (p5ai) mac, respectively. Ratio Abd III: IV = 1: 3.83–4.86 (n= 4), holotype 1: 4.59.

Legs. Subcoxa I with 1 chaeta; subcoxa II with an anterior row of 9 chaetae and about 10 anterior chaetae; posterior row of 6 chaetae and 3 psp; subcoxa III with one row of 9 chaetae and at least 6 anterior chaetae of different sizes ( Figs 5A–C View FIGURE 5 ). Trochanteral organ with about 20 spine-like chaetae ( Fig. 5D View FIGURE 5 ). Femur I–III with one outer longitudinal row of 2, 1, 1, 1 mac finely ciliate and normal ( Figs 5E–F View FIGURE 5 ); femur I–II internally with 4 chaetae finely ciliate, 1 anterior apically acuminate and other normal, plus 2 posterior ones ( Fig. 5E View FIGURE 5 ); femur III with an inner row of 5 unmodified mac ciliate and 1 proximal elongated chaeta apically acuminate; anterior side with an 1 proximal elongated chaetae apically acuminate ( Fig. 5F View FIGURE 5 ). Tibiotarsus I–III with 9 inner mac finely ciliate, anterior mac absent ( Fig. 5E View FIGURE 5 ); tibiotarsal smooth chaeta 0.89 smaller than the unguiculus, tenent hair 0.62 smaller than the unguis outer edge. Unguis I–III with 3 inner teeth, b.t. subequals, larger than m.t. and projected on basal half of the unguis, m.t. next to b.t., a.t. absent. Unguiculus I–III with all lamellae smooth and acuminate ( Fig. 5G View FIGURE 5 ); ratio unguis: unguiculus = 1: 0.69.

Collophore ( Fig. 6A View FIGURE 6 ). Anterior side with about 12 ciliate chaetae, 9 thin chaetae of different sizes widely distributed on tube, and 3 distal chaetae (2 central mac and 1 lateral mes); posterior side with about 25 ciliate chaetae (4 unpaired), 1 larger unpaired median mac, 3 elongated chaetae (2 unpaired), proximal half with 4 mes and distal half with 13 thin mic (1 unpaired) widely distributed, distally 4 ciliate chaetae, no smooth chaetae; lateral flap with about 11 chaetae, 5 smooth and 6 ciliate.

Furcula. Manubrium laterally with one row of 3–4 spine-like mac ciliate (holotype with 3) and about 9 elongated mac ( Fig. 6C View FIGURE 6 ); ventrally with 2 subapical and 9 elongated scales, internally with 2 subqual ciliate chaetae ( Fig. 6D View FIGURE 6 ); manubrial plate dorsally with 4 ciliated chaetae (2 inner larger than the internal ones) and 2 psp ( Fig. 6E View FIGURE 6 ). Dens dorsally with an inner row of 16–21 spines subtly ciliated (holotype with 18 and 19) and an outer row of 9–11 spinelike mac ciliate (holotype with 11 and 13) ( Fig. 6F View FIGURE 6 ). Mucro twice as long as its width and with 4 teeth, 3 (ap, v1, v2) in one dorsal row and 1 (il) on the inner side ( Figs 6F View FIGURE 6 and 18F View FIGURE 18 )

Etymology. Refers to the region where the new species was found, the Occidental Amazon ( Fig. 7 View FIGURE7 ).

Type material. Holotype male on slide ( INPA-CLL000112 ): Brazil, Acre, Manoel Urbano municipality, State Park of “Chandless”, T2-500 grid, 09°22’40”S, 69°55’12”W ( Fig. 7 View FIGURE7 ), 212 m., 05–13.x.2016, pitfall-trap, IPS Santos coll. GoogleMaps 14 paratypes: 1 male, 2 females and 1 juvenile on slides ( INPA-CLL000112 ), GoogleMaps same date as holotype; 3 females on slides and 2 specimens in alcohol ( INPA-CLL000112 ) plus 1 male and 1 female on slides ( CC / UFRN), GoogleMaps same date as holotype, except T2-4500 grid, 09°24’21”S, 69°53’52”W, 232 m.; 1 female on slide ( INPA-CLL000112 ), GoogleMaps same date as holotype, except T1-2500 , 09°23'52"S, 69°54'58"W, 215 m.; 2 specimens in alcohol ( INPA-CLL000112 ), GoogleMaps same date as holotype, except T1-500 , 09°23’01”S, 69°55’37”W, 203 m. GoogleMaps

Other examined material. 1 male and 2 females on slide and 2 specimens in alcohol ( INPA): Brazil, Amazonas, Tefé municipality, road of “Emade”, Km 08, 03°26’53.8”S, 64°40'57.9”W ( Fig. 7 View FIGURE7 ), 76 m GoogleMaps ., 12-15.i.2013, pitfall-trap, AM Pereira Jr. coll. 1 male and 1 female on slide and 3 specimens in alcohol ( INPA): Barcelos municipality, State Park “Serra do Aracá”, in dry land, 01°30’24”N, 63°21’39”W, 108 m GoogleMaps ., 18.vii.2017, pitfall-trap, FJF Pacaya coll.

Remarks. The color pattern of T. amazoccidentalensis sp. nov. resembles that of T. balteata Soto-Adames, 2015 from Jamaica (see Soto-Adames 2015:11), but the overall morphology resembles other three Neotropical species: T. paracarpenteri Soto-Adames, 2015 , T. relicta ( Palacios-Vargas, Ojeda & Christiansen, 1985) and T. subterranea ( Mari-Mutt, 1987) (see Table 1 View TABLE ). However, T. amazoccidentalensis sp. nov. differs from these species by having 8 eyes (6 in T. relicta and T. subterranea ), labral papilla absent (2 projections present in T. balteata , T. paracarpenteri and T. relicta ), and 5 ‘IO’ chaetae (3 in T. relicta and 4 in T. subterranea and T. balteata ). Trogolaphysa amazoccidentalensis sp. nov. also differs by Th II with 5 mac in p3 complex (6 in T. balteata and T. subterranea ), Abd IV A3 mac absent and A4 and A5 present (opposite in part of other species), unguis m.t. almost together to b.t. (distant in T. relicta and T. balteata , and a little closer in T. subterranea ) and a.t. absent (present in T. balteata and T. relicta ). Finally, the new species differs in body color pattern by having blue latero-marginal bands that extend distally to Th II–III and coxae, a blue collophore, and one central trapezoidal band on Abd IV ( Fig. 2 View FIGURE 2 ), whereas T. paracarpenteri and T. relicta show a uniform diffused pattern (except for the head), and T. subterranea has the legs and the posterior section of Abd IV pigmented (see Soto-Adames 2015:11, Mari-Mutt 1987: 410). Other differences among these species are summarized in Table 1 View TABLE .

CC	CSIRO Canberra Rhizobium Collection
UFRN	Universidade Federal do Rio Grande do Norte
INPA	Instituto Nacional de Pesquisas da Amazonia
AM	Australian Museum