Lepidocyrtinus briani, Cipola & Morais & Bellini, 2020

Cipola, Nikolas Gioia, Morais, José Wellington De & Bellini, Bruno Cavalcante, 2020, Review of Lepidocyrtinus Börner, 1903 (Collembola, Entomobryidae, Seirinae): the African species, Zootaxa 4898 (1), pp. 1-110: 84-89

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Lepidocyrtinus briani

sp. nov.

Lepidocyrtinus briani   sp. nov. Cipola & Bellini

Figs 55 View FIGURE 55 , 67–71 View FIGURE 67 View FIGURE 68 View FIGURE 69 View FIGURE 70 View FIGURE 71 , Tables 1 View TABLE 1 and 5 View TABLE 5

Type Material. Holotype female on slide (54095/ CAS): Madagascar, Antsiranana, Daraina municipality, Binara Forest, 13°15’50”S; 049°35’57”E ( Fig. 55 View FIGURE 55 ), Rainforest , 1065 m, 18.x.2013, Malaise trap, BL Fisher coll. 8 paratypes: 1 male and 2 females on slides and 3 specimens in alcohol (54095/ CAS); 2 females on slides (54095/ CAS donated to INPA-CLL 000031), same data as holotype. GoogleMaps  

Diagnosis. Body with dark pigments on Ant II–IV and Th II laterally ( Fig. 67 View FIGURE 67 ); head mac A0, A2–3, A5, M1–2, S0–3 and S5–6 present; prelabral chaetae smooth; labial papilla E with l.p. apically pointed and reaching the base of a.a.; basolateral and basomedian labial fields with chaetae R (subequal to others), E and L1–2 ciliated ( Figs 68 View FIGURE 68 B–D); Th II projected anteriorly and with 6–7 anterior, 8 median (m1ip, m4–4p present, m4i mac absent) and 9–10 posterior mac (p2ep absent, p3 as mac); Th III–Abd II with 5–7, 3, 3 central mac respectively; Abd IV with 11 central mac and 14 lateral mac ( Figs 69 View FIGURE 69 , 70B View FIGURE 70 ); unguis a.t. present; unguiculus pe lamella serrated and with a small proximal tooth; collophore anteriorly with 8 spine-like chaetae and 5 ciliated chaetae apically acuminate, posteriorly with 8 spines, smooth chaeta present ( Fig. 71E View FIGURE 71 ); manubrium ventrally with 0–2/2 subapical chaetae; manubrial plate with 2 blunt mac abruptly acuminate at the apex; dens without blunt mac ( Figs 71 View FIGURE 71 F–G).

Description. Total length (head + trunk) of specimens 2.48–3.43 (n=4), holotype 3.43 mm. Specimens pale white with dark blue pigment on lateral Th II and light blue pigment on Ant II–IV, femur and tibiotarsus; eyepatches black ( Fig. 67 View FIGURE 67 ). Scales present on Ant I to proximal one seventh of Ant IV, dorsal and ventral head, dorsal thorax and abdomen, legs (except empodia), anterior collophore, ventral and dorsal manubrium and dens ventrally.

Head. Antennae smaller than trunk length ( Fig. 67 View FIGURE 67 ); ratio antennae: trunk = 1: 1.78–1.80 (n=3), holotype 1: 1.78; antennal segments ratio as I: II: III: IV = 1: 1.22–1.54: 1.42: 1.98–3.09, holotype 1: 1.25: 1.42: 1.98 (Ant III only holotype). Ant IV annulated on distal six seventh, with apical bulb apically bilobed. Ant III not annulated, apical organ with 2 elongated rods, 3 spiny guard sens and s-blunt sens of different sizes. Ant I dorsally with 4 median mac not surrounded by ciliated guard mic and 3 smooth mic at the base, without spines. Eyes A and B larger, G and H smaller, others subequal, and with 5 ‘IO’ chaetae; head dorsal macrochaetotaxy with 10–12 An, 4 A, 3 M and 7 S mac ( Fig. 68C View FIGURE 68 ). Clypeal formula with 4 (l1-2), 10 (ft), 3 (pf 0-2) ciliated chaetae, l1-2 larger than the others, l1 apically acuminate, 1 ft smaller, others subequal ( Fig. 68A View FIGURE 68 ). Prelabral chaetae smooth, inner chaetae rarely bifurcated. Labral p0 chaeta sometimes with median filament, p1 larger than the others. Labral papillae with two inner rounded projections, outer papillae absent. Maxillary palp with smooth t.a. and b.c. weakly ciliated, thicker and 1.41 longer than the t.a. Labial papilla E with l.p. apically pointed and reaching the base of a.a. ( Fig. 68B View FIGURE 68 ). Basolateral and basomedian labial fields with chaetae M1–2, R (subequal to others), E, L1–2 ciliated ( Fig. 68D View FIGURE 68 ). Ventral head with about 17 ciliated chaetae, postlabial formula with 4 (G1–4), 3 (H2–4), 4 (J1–4) chaetae, and 2 larger b.c. surrounding the cephalic groove ( Fig. 68D View FIGURE 68 ).

Thorax chaetotaxy ( Fig. 69 View FIGURE 69 A–B). Th II projected anteriorly, a, m and p series with 6–7, 8 and 9–10 mac, respectively. Th III a, m and p series with 3–4, 1 and 3–4 mac, respectively. Ratio Th II: III = 1.96–2.48: 1 (n=4), holotype 2.48: 1.

Abdomen chaetotaxy ( Figs 69 View FIGURE 69 C–D, 70A–C). Abd I a, m and p series with 0, 3 and 0 mac, respectively, and at least 1 secundary psp. Abd II a, m and p series with 1, 3 and 0 mac, respectively, m3e as mic. Abd III a, m and p series with 0, 2–3 and 1 mac, respectively. Abd IV with 11 central mac on A– T series and 14 lateral mac on E– Fe series; 2 secundary psp, at least 6 posterior sens (ps type I, others type II) and 8 posterior mes. Abd V a, m and p series with 1, 4 and 6 mac, respectively. Ratio Abd III: IV = 1: 4.49–5.39 (n= 4), holotype 1: 4.49.

Legs. Subcoxa I with 7–8 chaetae on a row, 5 anterior chaetae and 2 psp; subcoxa II with an anterior row of 14 chaetae, posterior row of 7 chaetae and 6 psp; subcoxa III with one row of 14 chaetae and 2 posterior psp ( Fig. 71 View FIGURE 71 A–C). Trochanteral organ with about 44 spine-like chaetae ( Fig. 72D View FIGURE 72 ). Tibiotarsus not subdivided, outer side with 6 large chaetae apically acuminate, inner side with 13 mac weakly ciliated. Unguis with 4 inner teeth, b.t. smaller than m.t., a.t. smaller than the others. Unguiculus with all lamellae smooth and acuminate, except pe serrated and with a small proximal tooth; ratio unguis: unguiculus = 1: 0.63. Tibiotarsal smooth chaeta 1.18 larger than unguiculus and tenent hair 0.69 smaller than unguis outer edge.

Collophore. Anterior side with 18 chaetae, 8 proximal spine-like chaetae, 1 thin and 2 normal ciliated chaetae, 5 ciliated chaetae apically acuminate and 2 mac distally; posterior side with 22 chaetae (5 unpaired), 8 spines, 13 thin ciliated chaetae widely distributed and 1 smooth chaetae distally; lateral flap with about 50 chaetae, 7 smooth and 43 ciliated ( Fig. 71E View FIGURE 71 ).

Furcula. Manubrium ventral formula with 0, 0, 0, 0–2/2 (subapical), 14–16 (apical) ciliated chaetae plus approximately 20 elongated apical scales per side ( Fig. 71F View FIGURE 71 ); manubrial plate with 2 blunt mac ciliated abruptly acuminate at the apex, 16 ciliated chaetae of different sizes and 3 psp. Dens dorsally with ciliated chaetae, without modified mac ( Fig. 71G View FIGURE 71 ).

Etymology. It is named after Dr. Brian L. Fisher (CAS), collector of the new species.

Remarks. Lepidocyrtinus briani   sp. nov. resembles other species from Madagascar ( Table 5 View TABLE 5 ). See the comparison among them in the remarks of L. iegoi   sp. nov.


California Academy of Sciences


Tavera, Department of Geology and Geophysics


Royal British Columbia Museum - Herbarium