Lepidocyrtoides villasboasi ( Arlé & Guimarães, 1981 ), Bellini, 2017

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: 232-238

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Lepidocyrtoides villasboasi ( Arlé & Guimarães, 1981 )

comb. nov.

Lepidocyrtoides villasboasi ( Arlé & Guimarães, 1981)   comb. nov.

FigS 1H View FIGURE 1 , 25–29 View FIGURE 25 View FIGURE 26 View FIGURE 27 View FIGURE 28 View FIGURE 29

Lepidosira villasboasi Arlé & Guimarães, 1981: 155   –159, Figs 1–6 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 , Brazil, Mato Grosso, Alto Xingu (descr. orig.), holotype lost. Mari Mutt & Bellinger, 1990: 107 (cat.). Abrantes et al. 2012: 10 (cat.)

Diagnosis. Body with a tranSverSe dark blue band on Th III–Abd III and other on Abd IV poSteriorly ( Fig. 1H View FIGURE 1 ); dorSal head with 1 median and without Sutural mac; labral papillae with 3 projectionS; baSomedian labial field with chaetae r abSent, M2 ciliate and Smaller; 4 anterior poStlabial ciliate chaetae pluS 3 Spine-like mic ( FigS 16D View FIGURE 16 , 26B– D View FIGURE 26 ); Th II with about 22–24 anterior mac and 5 poSterior mac; Th III–Abd III with 0, 1(lateral), 3 and 1 median mac reSpectively; Abd IV with 16–20 median mac and 12–13 lateral mac ( FigS 27 View FIGURE 27 , 28A–B View FIGURE 28 ); trochanteral organ with about 48 Spine-like chaetae; ungueS apical tooth preSent; unguiculuS I truncate, II–III acuminate; manubrial plate with 2 blunt mac; dorSal denS with 2–3 proximal unilaterally ciliate chaetae on inner Side ( FigS 25B View FIGURE 25 , 29D, G View FIGURE 29 ).

Typological note. The holotype and part of paratypeS of L. villasboasi   depoSited in MNRJ (Sample 1057) were loSt (Mendonça, perSonal communication). We found 6 paratypeS belonging to the Same Sample from which the neotype waS deSignated, according to ICZN (2000) (See chapter 16, article 72.4.5.).

Examined type material. Neotype male deSigned on Slide ( MNRJ /1057): Brazil, Mato GroSSo, National Park of “ Xingu ”, IndigenouS Station Leonardo VillaS BôaS”, next river “ Tutuari ”, 12°12'S, 53°22'W, 29.vii.1963, R Arlé coll. Paratype on Slide ( MNRJ /1057): 1 female, Same data aS neotype. ParatypeS on SlideS ( MNRJ /1064): 2 maleS and 3 femaleS, Same data aS neotype, except date 31.viii.1963. GoogleMaps  

Redescription. Total length (head + trunk) of SpecimenS 1.99–3.18 mm (n=4), neotype 1.99 mm. SpecimenS yellow to white with dark blue pigment on Ant I–IV, anterior head, Th III poSteriorly to Abd III, Abd IV poSteriorly, Abd V dorSally, coxa to trochanter of leg III, diStal femur III and dorSal manubrium; eyepatcheS black ( Fig. 1H View FIGURE 1 ). ScaleS preSent on Ant I to proximal Ant IV, 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. 1H View FIGURE 1 ), ratio antennae: trunk = 1: 1.14–1.77 (n=4), neotype 1: 1.77; antennal SegmentS ratio aS I: II: III: IV = 1: 1.33–1.75: 1.34–1.62: 2.38–2.98, neotype 1: 1.57: 1.62: 2.80. Ant IV annulated on diStal four fifthS, 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. 26A View FIGURE 26 ). Ant II with an apical group of about 11 inner SenS ( Fig. 25A View FIGURE 25 ). Ant I dorSally with 2 mac and 3 Smooth mic at baSe. Head dorSal chaetotaxy with 11 antennal (An), 5 anterior (A), 3 median (M), 1 Sutural (S), 1 poSt-Sutural (PS), 2 poStoccipital anterior (Pa) and 1 poStoccipital poSterior (Pp) chaetae ( Fig. 26B View FIGURE 26 ). EyeS G and H Smaller, B larger, otherS Subequal, with 4 interocular chaetae and 5 ScaleS ( FigS 26B View FIGURE 26 ). Clypeal formula with 4 (l1–2), 13 (frontal), 5 (pf0–2) ciliate chaetae, l1–2 and pf0–1 larger, pf2 and 2 frontal Smaller ( Fig. 26C View FIGURE 26 ). Prelabral chaetae Smooth; labrum with chaeta a1 not thick, p0–1 larger. Labral papillae with 3 projectionS apically acuminate (Similar to L.

bicolorangelus   sp. nov., fig. 16D). Maxillary palp with Smooth apical appendage (a.a.) and baSal chaeta (b.c.) Smooth, thick and 1.19 larger in length than the apical; Sublobal plate with tree Smooth appendageS. Labial palp with five main papillae (A–E) pluS one hypoStomal papilla (H) with 0, 5, 0, 4, 4, 2 guard appendageS, reSpectively, lateral proceSS (l.p.) apically pointed and not reaching the baSe of the papilla E. BaSolateral and baSomedian labial fieldS with chaetae M1–2, E, L1–2 ciliate, M2 Smaller, r abSent ( Fig. 26D View FIGURE 26 ). Ventral head with numerouS ciliate chaetae of different SizeS, 4 anterior poStlabial chaetae pluS 3 Spine-like mic; cephalic groove with about 10 Surrouding ciliate chaetae, 4 median mic and 3 larger baSal chaetae, otherS Subequal ( Fig. 26D View FIGURE 26 ).

Thorax chaetotaxy ( FigS 27A–B View FIGURE 27 ). Th II with about 25–27 antero-median chaetae, 22–24 mac and 3 meS; poSteriorly with 5 median mac and 1 central meS (p3). Th III with 4 lateral mac (a6, m5, p5–6). Ratio Th II: III = 3.19–2.40: 1 (n=4), neotype 2.48: 1.

Abdomen chaetotaxy ( FigS 27C–D View FIGURE 27 , 28A–C View FIGURE 28 ). Abd I laterally with 1 mac (m5) and 2 meS. Abd II with 3 central mac (a2, m3–3e) and 4 lateral mac (m5–6, p6 and 1 unnamed), bothriotricha a5 and m2 with 6 and 4 acceSSory ScaleS reSpectively. Abd III with 1 central mac (m3) and 4 lateral mac (am6, pm6, p6–7), bothriotricha a5, m2 and m5 with 8, 3 and 4 acceSSory ScaleS reSpectively, and 6 lateral meS. Abd IV with 16–20 median mac, 12–13 lateral mac, 20 acceSSory ScaleS between bothriotricha T2 and T4, at leaSt 3 poSterior SenS (ps type I, otherS type II), and aproximatelly 29 poSterior meS. Abd V with SerieS ‘a’, ‘m’ and ‘p’ with 2, 3 and 5 mac reSpectively. Ratio Abd III: IV = 1: 7.73–10.22 (n= 4), holotype 1: 7.73.

LegS. Subcoxa I (outer Side) with 3 chaetae and 2 pSp; Subcoxa II with an anterior row of 15 chaetae, poSterior row of 5 chaetae and 5 pSp; Subcoxa III with one row of 11 chaetae pluS 2 anterior chaetae, and 2 pSp poSteriorlly ( Fig. 29A–C View FIGURE 29 ). Trochanteral organ with about 48 Spine-like chaetae ( Fig. 29D View FIGURE 29 ). Femora I–III with 1 proximal inner chaeta apically acuminate and 3 medio-diStal mac gently ciliate. TibiotarSi I–III not Subdivided, inner Side apparently with 8 mac gently ciliate. UngueS outer Side with a pair of large laterobaSal teeth; inner Side with 4 teeth, 2 paired baSal, 1 unpaired median Subequal to baSal teeth, and 1 Smaller unpaired apical. UnguiculuS I truncate, II– III acuminate, all with outer edgeS Serrated, other edgeS Smooth; ratio unguiS: unguiculuS = 1: 0.65. TibiotarSuS III diStally with one inner Smooth chaetae 0.82 Smaller than unguiculuS; outer Side with tenent hair capitate, Smooth, and 0.82 Smaller than unguiS outer edge (Similar to L. caeruleomaculatus   sp. nov., Fig. 10A–C View FIGURE 10 ).

Collophore. Anterior Side with 12 ciliate chaetae, 3 mac and 2 Smaller diStally, and 7 thin proximal; poSterior Side with one unpaired mac and 5 Small proximal SpineS, 4 meS, about 25 thin and 4 Smaller chaetae widely diStributed, and diStally 1 thick Smooth chaeta; lateral flap with about 7 Smooth chaetae and 11 ciliate chaetae ( Fig. 29E View FIGURE 29 ).

Furcula. Ventral manubrium with 4 apical ciliate chaetae, 3 outer Scale-like chaetae and about 29 apical long ScaleS, and 13 Subapical ScaleS on one tranSverSe row per Side ( Fig. 29F View FIGURE 29 ). Manubrial plate (dorSally) with 2 blunt mac gently ciliate and apically bullet-like, 11 ciliate chaetae, and 2 pSp ( FigS 25B View FIGURE 25 , 29G View FIGURE 29 ). DorSal denS with 2–3 proximal unilaterally ciliate chaetae on inner Side, otherS normal. Mucro bidentate with apical tooth larger than proximal tooth, baSal Spine not SurpaSSing the apex of the proximal tooth.

Remarks. Lepidocyrtoides villasboasi   comb. nov. reSembleS L. pictus Schäffer, 1898   from Papua, IndoneSia by body with one tranSverSe band of dark blue pigment on Th III to Abd III and Abd IV poSteriorly, but L. villasboasi   comb. nov. eaSily differS from thiS SpecieS by Ant IV without apical bulb (preSent in L. pictus   ), prelabral chaetae Smooth (ciliate in L. pictus   ), Th II with 5 poSterior mac (8 in L. pictus   ), Th III–Abd II with 0, 1(lateral) and 3 median mac, reSpectivelly (5, 0 and 2 in L. pictus   ) and manubrial plate with 2 blunt mac (3 in L. pictus   ) (See YoShii & Suhardjono, 1992: 17) (See YoShii & Suhardjono, 1992: 18). To more comparative data of L. villasboasi   comb. nov. See remarkS of L. caeruleomaculatus   sp. nov.


Museu Nacional/Universidade Federal de Rio de Janeiro














Lepidocyrtoides villasboasi ( Arlé & Guimarães, 1981 )

Bellini, Bruno Cavalcante 2017

Lepidosira villasboasi Arlé & Guimarães, 1981 : 155

Abrantes 2012: 10
Mari 1990: 107
Arle 1981: 155