Campylothorax plagatus, Cipola, Nikolas Gioia & Oliveira, Fábio Gonçalves De Lima, 2016

Cipola, Nikolas Gioia & Oliveira, Fábio Gonçalves De Lima, 2016, A new species of Campylothorax Schött, 1893 (Collembola, Paronellidae) from Brazilian Amazon, with an identification key to the genus, Zootaxa 4109 (4), pp. 487-495: 488-493

publication ID

http://doi.org/10.11646/zootaxa.4109.4.7

publication LSID

lsid:zoobank.org:pub:DF09279C-9686-48A6-A84C-3BF866041A44

persistent identifier

http://treatment.plazi.org/id/03C087FA-FF98-FFCB-0BDC-FCDDFCC8FA83

treatment provided by

Plazi

scientific name

Campylothorax plagatus
status

sp. nov.

Campylothorax plagatus  sp. nov.

Figs 1–31View FIGURES 1 – 6View FIGURES 7 – 14View FIGURES 15 – 21View FIGURES 22 – 31

Type material. Holotype female on slide Nº COLLE 056 / INPA: Brazil, Amazonas, Presidente Figueiredo, AM- 270 road, km 18, waterfall of “Maroca" (02°00'08'S; 59 ° 52 '04'W), 166 m, 30.viii. 2014, entomological aspirator, NG Cipola & FGL Oliveira coll.GoogleMaps  Paratypes on slide Nº COLLE 056A-G / INPA: 3 males and 4 females and 20 specimens in alcohol, same data as holotype.GoogleMaps  Paratypes on slide Nº COLLE 056H / INPA: 1 male, same data as holotype, except dish trap.GoogleMaps 

Diagnosis. Distinguished by abdomen III –IV with a transverse band of dark purple color; Th II chaetotaxy with 6 mac in p 3 complex; Abd II –III respectively with 2 (m 3, m 5) and 4 (m 3, am 6, pm 6, p 6) central mac; Abd IV with 5 posterior central mac (A 5, A 6, B 4, B 5 and B 6), and 5 lateral mac (E 2, E 3, F 1, F 2 and F 3?); unguiculi III truncate, and dens with two distal rows of dorsal spines ( Figs 1View FIGURES 1 – 6, 15, 18–20View FIGURES 15 – 21, 24– 25, 29–30View FIGURES 22 – 31).

Description. Total length (head + trunk) of the holotype 3.9 mm. Habitus typically of paronellids ( Fig. 1View FIGURES 1 – 6). Specimen with dark purple color covering posteriorly to eyepatches, margin of Th II, Abd III with one transversal band and abdomen IV with one on central region; coxa I –II, femur III, and all tibiotarsi distally. Bluish brown irregular pigment covering antennas, head and legs ( Fig. 1View FIGURES 1 – 6). Body covered by different types of chaetae, sens, bothriotricha and scales ( Figs 2–7View FIGURES 1 – 6View FIGURES 7 – 14). Hyaline, denticulate, apically rounded or truncate scales covering the Ant I –II, both faces of head, thorax, abdomen, legs, posterior face of the collophore, both faces of manubrium and anteriorly dens ( Figs 6View FIGURES 1 – 6, 26 and 30View FIGURES 22 – 31).

Head ( Fig. 8View FIGURES 7 – 14). Ant III –IV missing in all specimens. Ant I dorsally with 7 mac and 9 basal spiny smooth mic ( Fig. 9View FIGURES 7 – 14). Eyes 8 + 8, G and H small, with ciliated chaetae ( Figs 6View FIGURES 1 – 6 and 8View FIGURES 7 – 14). Dorsal chaetotaxy ( Fig. 8View FIGURES 7 – 14); antennal series 'An' with 13–15 mac; anterior series 'A' with 5 chaetae, A 3 as mac or mic; medio-ocellar series 'M' with 1 mac present or absent (M 1?); sutural series 'S' with 5 chaetae, S 2–3, S 4 and S 5 as mac, S 5 i as mic; interocular series with 5 chaetae; post-sutural series 'Ps' with 2 mic (Ps 2, Ps 5); postoccipital anterior series 'Pa' with 2 chaetae, Pa 5 as macrochaetae; postoccipital posterior series 'Pp' with one mic (Pp 5?), plus 3 unnamed mic posteriorly. Ventral chaetotaxy with 32 ciliated chaetae ( Fig. 10View FIGURES 7 – 14), cephalic groove (CG) with 7 chaetae; medial postlabial (PLM) with 4 chaetae; external postlabial (PLE) with 3 chaetae. Prelabral and labral chaetae 4 / 5, 5, 4, all smooth, four anterior labral (a 1–2), a 1 as spine-like; five median (m 0–2), and five posterior (p 0–2) ( Fig. 11View FIGURES 7 – 14). Basolateral and basomedian field with chaetae M 1 ciliated, and A 1–5, M 2, r, E, L 1 and L 2 smooth ( Fig. 12View FIGURES 7 – 14). Labium with five smooth proximal chaetae. Labial palp with five papillae (A –E), and with 0, 5, 0, 4, 4 guard chaetae, respectively; papilla E with lateral process (l.p.) smaller than the papilla; papilla H (main hypostomal) with 2 accessorial hypostomal chaetae ( Fig. 13View FIGURES 7 – 14). Maxillary outer lobe with apical appendage and one basal chaeta smaller than the apical, both smooth; sublobal plate without appendages ( Fig. 14View FIGURES 7 – 14).

Thorax chaetotaxy. Th II as in figure 15, with 5 anterolateral mac (excluding chaetal collar), 1 S-microchaeta (ms), and 1 anterolateral sens (al); posterior series 'p' with 9 chaetae, p 3 complex with 6 mac, p 4, p 5 and p 6 as mic, plus 4 lateral chaetae. Th III as in figure 16; 4 central mac (a 2, m 4, p 2, p 3), 7 unnamed lateral mac, and anterolateral sens (al).

Abdomen chaetotaxy. Abd I as in figure 17; series 'm' with 3 central mic (m 2–4); series 'p' with 1 mic (p 6); lateral region with 6 unnamed chaetae and 1 S-microchaeta (ms). Abd II as in figure 18; series 'a' with 2 mic (a 6–7) and 1 bothriotrichum (a 5) with 4 accessory chaetae; series 'm' with 4 chaetae, m 3 and m 5 as mac, m 6? as mic, and m 2 as bothriotrichum with 3 accessory chaetae; 1 anterosubmedial sens (as) present; series 'p' with 1 mic (p 6); lateral with about 10 chaetae. Abd III as in figure 19; series 'a' with 1 bothriotrichum (a 5); series 'm' with 5 chaetae, m 3, am 6 and pm 6 as mac, m 2 and m 5 as bothriotricha; series 'p' with 1 mac (p 6); 1 anterosubmedial sens (as), 1 S-microchaeta (ms), and 6 unnamed mes present. Abd IV as in figure 20; series 'A' with 4 mac (A0?–A 1, A 5–6); series 'B' with 3 mac (B 4–6); series 'C' with 3 mic (C 2–4); series 'T' with 5 chaetae, T 2 and T 4 as bothriotricha, T 5 as mic, and T 6 and T 7 as mes; series 'D' with 2–3 mes (D 1?– 3?), D 1? present or absent; series 'E' with 4 chaetae, E 2–3 as mac; series 'F' with 3 mac (F 1–3?); series 'Fe' with 1 mes (Fe 2), plus 7 mes and 3 mic laterally; 1 anterosubmedial sens (as) type I, 6 sens type II (ps and 5 unnamed), and 13 mes posteriorly present. Abd V as in figure 21; series 'a' with 4 chaetae, a 5 and a 6 as mac plus 1 anterosubmedial sens (as); series 'm' with 3 mac (m 2–3, m 5) and 1 mes (m 5 e); posteroanterior series 'pa' with 3–4 chaetae (p 4 a – 5 a, p 6 ai, p 6 ae), p 4 a present or absent; series 'p' with 3 mac (p 1, p 3–4), 1 mes (p 5), and 2 accessory sens (acc.p 4 and acc.p 5) present.

Legs. Trochanter I with one group of 18 ciliated chaetae ( Fig. 22View FIGURES 22 – 31). Trochanteral organ with approximately 40 spine-like chaetae ( Fig. 23View FIGURES 22 – 31). Tenent hairs capitate with smooth edges. Unguis with four inner teeth, one pair basal teeth, and two unpaired teeth (median and distal), plus two long dorsal teeth. Unguiculi trilamelate, one lamella truncate, two acuminate, with smooth edges, unguiculi I –II short, III long ( Figs 24–25View FIGURES 22 – 31).

Collophore. Anterior face with 3 long and 2 short ciliated chaetae; posterior face with about 66 ciliated chaetae; lateral face with 28 chaetae, 26 smooth and 2 ciliated ( Fig. 26View FIGURES 22 – 31).

Genital plate of male circinate with 12 surrounding ciliated chaetae, longitudinal genital opening with 10 sclerotic lobes ( Fig. 27View FIGURES 22 – 31).

Furcula. Manubrial plate with 4 ciliated chaetae and 3 pseudopores ( Fig. 28View FIGURES 22 – 31). Dens dorsally with an internal row of 44–47 ciliated spines and an external row of 5 distal ciliated spines ( Fig. 29View FIGURES 22 – 31). Mucro with 5 teeth, 4 apical (v 1, il, ap and d) and 1 basal (v 2) ( Figs 30–31View FIGURES 22 – 31).

Etymology. Refers to the color pattern streaked (from Latin: plagat) on abdomen III and IV ( Fig. 1View FIGURES 1 – 6).

Distribution and habitat. Campylothorax plagatus  sp. nov. probably is a epiedaphic species because it was found on the litter in waterfall bank of "Maroca", Amazon phytogeographic domain, Amazonas State, North Brazilian, Good's biogeographic zone 26 of Neotropical region ( Good 1974). The climate of the area following the Köppen-Geiger system is "Am" tropical wet (or monsoon) climate, characterized by wet and dry seasons ( Kottek et al. 2006). This is the first species of Campylothorax originally described from Brazilian Amazon.

Remarks. Campylothorax plagatus  sp. nov. resembles C. cubanus Gruia, 1983 from Cuba, by abdomen color with two transverse bands, but the new species differs by one of these bands on the Abd III ( Fig. 1View FIGURES 1 – 6), while in C. cubanus both bands on Abd IV (see Gruia 1983, pg. 203).

The new species also resembles C. cubanus by dorsal chaetotaxy of Th III to Abd III ( Figs 16–19View FIGURES 15 – 21), but differs by head chaetotaxy with or without M 1? mac (absent in C. cubanus); Th II with 6 mac in p 3 complex. (7 in C. cubanus); Abd IV with 5 posterior central mac (A 5–6, B 4–6) and 5 lateral mac (E 2–3, F 1–3?), while in C. cubanus are 6 mac in both regions ( Figs 8View FIGURES 7 – 14, 15, 20View FIGURES 15 – 21). Another characteristics of C. plagatus  sp. nov. that also differs is: trocanteral organ with 40 spine-like chaetae (21 in C. cubanus), unguis with one unpaired apical tooth (absent in C. cubanus), unguiculi III truncate (lanceolate in C. cubanus), two rows of dental spines (one in C. cubanus), and mucro more longer than C. cubanus ( Figs 23–25, 29, 30–31View FIGURES 22 – 31).

INPA

Brazil, Amazonas, Manaus, Instituto Nacional de Pesquisas da Amazoonia, Colecao Sistematica da Entomologia

INPA

Instituto Nacional de Pesquisas da Amazonia