Lepidocyrtoides bicolorangelus,

Bellini, Bruno Cavalcante, 2017, The discovery of Lepidocyrtoides Schött, 1917 (Collembola, Entomobryidae, Entomobryinae) from the New World, including three new species from Brazil and one from Australia, Zootaxa 4324 (2), pp. 201-248: 220-226

publication ID

https://doi.org/10.11646/zootaxa.4324.2.2

publication LSID

lsid:zoobank.org:pub:1Ff9Ac2E-96Ae-4352-9D5F-85Bd3C639E4A

persistent identifier

http://treatment.plazi.org/id/112687CA-FF96-FF9A-69EF-EBF3FD20FA8A

treatment provided by

Plazi

scientific name

Lepidocyrtoides bicolorangelus
status

sp. nov.

Lepidocyrtoides bicolorangelus  sp. nov. Cipola & Bellini

FigS 1EView FIGURE 1, 16–20View FIGURE 16View FIGURE 17View FIGURE 18View FIGURE 19View FIGURE 20

Diagnosis. Body with dark blue pigment on Th III to Abd IV and part of appendageS ( Fig. 1EView FIGURE 1); dorSal head with 1 median and 1 Sutural mac, Pp5 mac preSent; labral papillae with 2–3 projection apically acuminate; baSomedian and baSolateral labial fieldS with chaetae M1, R, E, L1–2 ciliate, M2 abSent; 4 anterior poStlabial chaetae ciliate pluS 4 Spine-like chaetae ( FigS 16B, D –EView FIGURE 16); Th II with 9–21 anterior mac and 4 poSterior mac; Th III –Abd III with 0, 1(lateral), 3 and 1 median mac reSpectively; Abd IV with 12–16 median mac and 9 lateral mac ( FigS 17View FIGURE 17, 18A – BView FIGURE 18); trochanteral organ with about 27 Spine-like chaetae; ungueS with minute apical tooth; unguiculi truncate and with a Small tooth on inner edge; manubrial plate with 2 blunt mac; dorSal denS with 1 proximal blunt ciliate chaeta, without unilaterally ciliate chaetae ( FigS 19D –E, IView FIGURE 19, 20View FIGURE 20).

Type Material. Holotype female on Slide (065/ INPA): Brazil, Roraima, Caracaraí municipality, Parque Nacional do Viruá , 01°27’34”N, 61°00’24”W, Amazon foreSt , 70 m, 16.i –6.ii.2013, Pitfall-trapGoogleMaps  , IPS SantoS coll. ParatypeS on SlideS (065A-E/ INPA): 5 femaleS and 2 juvenileS, and 8 SpecimenS in alcohol, Same data aS holotype, except 21.ix –9.x.2012 and 16.i –6.ii.2013  .

Description. Total length (head + trunk) of SpecimenS 1.65–1.87 mm (n=4), holotype 1.65 mm. SpecimenS pale yellow to white with dark blue pigment on Th III to two-thirdS of Abd IV, proximal collophore, coxa to femur III almoSt entire and diStal manubrium and proximal denteS; eyepatcheS black ( Fig. 1EView FIGURE 1). JuvenileS with the Same color pattern aS adultS. ScaleS preSent on Ant I to proximal Ant III, dorSal and lateral head, thorax and abdomen dorSally, legS (except empodia), collophore anteriorly, and manubrium and denteS ventrally.

Head. Antennae Shorter than trunk length ( Fig. 1EView FIGURE 1), ratio antennae: trunk = 1: 1.43–1.81 (n=4), holotype 1: 1.43; antennal SegmentS ratio aS I: II: III: IV = 1: 1.49–2.01: 1.53–2.07: 2.69–2.92, holotype 1: 1.49: 1.53: 2.92. Ant IV not annulated, without apical bulb, with S-blunt SenS of different SizeS and ciliate chaetae. Ant III SenSe organ with 2 rodS, 2 Spiny guard SenSilla, S-blunt SenS and ciliate chaetae ( Fig. 16AView FIGURE 16). Ant I dorSally with 2 median mac and 3 Smooth mic at baSe. Head dorSal chaetotaxy with 10 antennal (An), 3 anterior (A), 2 median (M), 2 Sutural (S), 1 poSt-Sutural (PS), 2 poStoccipital anterior (Pa) and 1 poStoccipital poSterior (Pp) chaetae ( Fig. 16BView FIGURE 16). EyeS G and H Smaller, B larger, otherS Subequal, with 4 interocular chaetae and 1 Scale ( FigS 16BView FIGURE 16). Clypeal formula with 4 (l1–2), 7 (frontal), 3 (pf0–1) ciliate chaetae, l1–2 larger, 2 frontal Smaller, otherS Subequal ( Fig. 16CView FIGURE 16). Prelabral chaetae Smooth; labrum with chaeta a1 thick, p0–1 larger. Labral inner papillae with 2–3 projectionS apically acuminate, median projection preSent or abSent, outer papillae abSent ( Fig. 16DView FIGURE 16). Maxillary palp with Smooth apical appendage (a.a.) and baSal chaeta (b.c.) gently ciliate, thick and 1.15 larger in length than the apical; Sublobal plate with three Smooth appendageS. Labial palp with five main papillae (A –E) pluS one hypoStomal papilla (H) with 0, 4, 0, 4, 3, 2 guard appendageS, reSpectively, lateral proceSS (l.p.) apically pointed and not reaching the baSe of the papilla E (Similar to L. colormutatus  sp. nov., Fig. 12CView FIGURE 12). BaSolateral and baSomedian labial fieldS with chaetae M1, R, E, L1–2 ciliate, R Smaller, M2 abSent ( Fig. 16EView FIGURE 16). Ventral head with numerouS ciliate chaetae of different SizeS, 4 anterior poStlabial chaetae pluS 4 Spine-like mic and 1 Smaller chaeta; cephalic groove with about 11 Surrounding ciliate chaetae, 5 thin median chaetae, 1 larger baSal chaetae (b.c.), otherS Subequal ( Fig. 16EView FIGURE 16).

Thorax chaetotaxy ( FigS 17A –BView FIGURE 17). Th II with 12–21 antero-median chaetae, 9–21 mac and 1–3 meS; poSteriorly with 4 median mac. Th III with 3 lateral mac (a6–7, p5) and 6 meS (m6–7, p6 pluS three chaetae with uncler homologieS). Ratio Th II: III = 2.85–2.25: 1 (n=4), holotype 2.34: 1.

Abdomen chaetotaxy ( FigS 17C –DView FIGURE 17, 18A –CView FIGURE 18). Abd I laterally with 1 mac (m5) and 2 meS. Abd II with 3 central mac (a2, m3–3e) and 3 lateral mac (m5–6, p6), bothriotricha a5 and m2 with 6 acceSSory ScaleS each. Abd III with 1 central mac (m3) and 4 lateral mac (am6, pm6, p6 and m7), bothriotricha a5, m2 and m5 with 6, 6 and 5 acceSSory ScaleS reSpectively, and 2 lateral meS. Abd IV with 12–16 median mac, 9 lateral mac, 12 acceSSory ScaleS between bothriotricha T2 and T4, 7 poSterior SenS (ps type I, otherS type II), and aproximatelly 18 poSterior meS. Abd V with SerieS ‘a’, ‘m’ and ‘p’ with 3, 3 and 4 chaetae reSpectively. Ratio Abd III: IV = 1: 6.22–7.60 (n= 4), holotype 1: 6.22.

LegS. Subcoxa I (outer Side) with 3 chaetae and 2 pSp; Subcoxa II with an anterior row of 9 chaetae, poSterior row with 2 chaetae and 3 pSp; Subcoxa III with one row of 10 chaetae and 2 poSterior pSp ( Fig. 19A –CView FIGURE 19). Trochanteral organ with about 27 Spine-like chaetae ( Fig. 19DView FIGURE 19). TibiotarSi not Subdivided, chaetotaxy of femora and tibiotarSi I –III Similar to L. caeruleomaculatus  sp. nov., but leSS developed. UngueS outer Side with a pair of large laterobaSal teeth; inner Side with 4 teeth, 2 paired baSal, 1 unpaired median Subequal than baSal teeth, and 1 minute unpaired apical tooth. Unguiculi I –III truncate, inner Side with an minute Subapical tooth, other SideS Smooth; ratio unguiS: unguiculuS = 1: 0.65. TibiotarSuS III diStally with one inner Smooth chaetae 0.88 Smaller than unguiculuS; outer Side with tenent hair capitate, Smooth, and 0.99 Smaller than unguiS outer edge ( Fig. 19EView FIGURE 19).

Collophore. Anterior Side with 8–9 ciliate chaetae, 3 mac and 1 meS diStally preSent or abSent pluS 5 thin proximal chaetae; poSterior Side with about 32 ciliate chaetae, 1 unpaired proximal mac and 3 meS, 5 Small proximal SpineS, 10 thin and 11 Smaller chaetae widely diStributed, and diStally 1 thick Smooth chaeta; lateral flap with about 17 chaetae, 7 Smooth and 10 ciliate ( Fig. 19F –GView FIGURE 19).

Furcula. Ventral manubrium with 7 Subapical long ScaleS on one tranSverSe row, about 6 apical ScaleS, 3 outer Scale-like and 3 inner ciliate chaetae, inner chaeta Smaller ( Fig. 19HView FIGURE 19). Manubrial plate with 2 blunt mac gently ciliate and apically bullet-like, 4 ciliate chaetae and 1 pSp. DorSal denS with 1 proximal blunt ciliate chaetae, without row of unilaterally ciliate chaetae ( FigS 19IView FIGURE 19 – 20View FIGURE 20). Mucro bidentate with apical tooth larger than proximal tooth, baSal Spine not SurpaSSing the apex of the proximal tooth.

Etymology. ReferS to the color pattern Similar to the angelfiSh Centropyge bicolor (Bloch)  .

Remarks. Lepidocyrtoides bicolorangelus  sp. nov. reSembleS L. bicolor YoShii & Suhardjono, 1992  from Maluku ISland, IndoneSia by color pattern preSent on body poSteriorly including femur III and manubrium, reduced dorSal chaetotaxy and dorSal denS with 1 proximal blunt ciliate chaeta (See YoShii & Suhardjono, 1992: 17).

However, L. bicolorangelus  sp. nov. iS eaSily diStinguiShed from thiS SpecieS by dorSal chaetatoxy of Th II with 4 poSterior mac (6 in L. bicolor  ), and Th III –Abd II with 0, 1(lateral) and 3 median mac reSpectively, while in L. bicolor  iS 2, 0 and 2. Other featureS that differ L. bicolorangelus  sp. nov. iS Ant IV not annulated and without apical bulb (preSent in L. bicolor  ), prelabral chaetae Smooth (ciliate in L. bicolor  ), unguiculi truncate (acuminate in L. bicolor  ), and manubrial plate with 2 blunt mac (4 in L. bicolor  ).

In general, the dorSal chaetotaxy and other morphological characteriSticS of L bicolorangelus  sp. nov. reSemble L. colormutatus  sp. nov. (See remarkS of thiS SpecieS).

INPA

Instituto Nacional de Pesquisas da Amazonia