Paulianidia tanala Janák & Baňař, 2024

Janák, Jiří & Baňař, Petr, 2024, Four new species and new records of the genus Paulianidia of Madagascar (Coleoptera: Staphylinidae: Paederinae), Zootaxa 5428 (2), pp. 253-268 : 256-258

Paulianidia tanala Janák & Baňař , sp. nov.

( Figs. 19–27, 29–30 , 121 )

Type locality. Madagascar, Ranomafana National Park

Type material. Holotype ♂: MADAGASCAR: “RNF/ Sept. 2012 /11 MADAGASCAR, RANOMAFANA N. P.; 8.x.2012 S21°15’54.4” E47°25’01.8”; 1003m TALATAKELY, sifting litter, Winkler app. extr. L.S. Rahanitriniaina lgt.” // “HOLOTYPUS Paulianidia tanala sp. nov., Janák & Baňař det. 2023” ( MMBC) . Paratypes: 5 ♂, 3 ♀: “RNF/ Sept. 2012 /01 MADAGASCAR, RANOMAFANA N. P.; 27.ix.2012 S21°15’40.4” E47°25’16.5”; 1017m AMBATOLAHIDIMY; sifting litter, Winkler app. extr.; L.S. Rahanitriniaina lgt.” ( MMBC, JJRC) ; 3 ♂: “RNF/ Sept. 2012 /10 MADAGASCAR, RANOMAFANA N. P.; 6.x.2012 S21°17’51.8” E47°26’35.1”; 1008m VALOHOAKA, sifting litter, Winkler app. extr. L.S. Rahanitriniaina lgt.” ( JJRC) ; 2 ♂: “MADAGASCAR—CE, Ranomafana N.P., 16– 18.xi.2010; 1079 m // S21°14’51” E47°24’13”, sifting; P. Baňař lgt.” ( MMBC) ; 1 ♂, 1 ♀: “MADAGASCAR— CE 2010, RANOMAFANA N.P., 16–18.xi., S21°14’51” E47°24’13”, 1079 m sifting; P. Baňař lgt.” ( MMBC) ; 1 ♂: “MADAGASCAR—CE, RANOMAFANA N.P., 17.xi.2010, ~ 960 m sifting by stream close to main entrance; P. Baňař lgt.” ( MMBC) . All paratypes with an additional label “PARATYPUS Paulianidia tanala sp. nov., Janák & Baňař det. 2023” .

Description: Body length 5.2–6.0 mm (M = 5.5 mm, HT = 5.9 mm), forebody length 2.9–3.1 mm (M = 3.0 mm, HT = 3.0 mm). Reddish brown to brown, abdomen, mouthparts and antennomeres reddish brown, legs light reddish yellow ( Fig. 19 ).

Head ( Fig. 20 ) moderately convex, only slightly longer than wide (L/W = 1.03–1.10, M = 1.06, HT = 1.06). Surface between eyes with coarse and dense umbilicate punctures, in centre of disc with punctation markedly sparser and finer and here and there with interstices larger than diameter of punctures. Eyes moderately large, temples on average about 1.5 times as long as eyes (R = 1.46–1.68, M = 1.56, HT = 1.46), markedly narrowed posteriorly. Antennae long and slender, fifth antennomere about one and half as long as wide (L/W = 1.34–1.65, M = 1.55, HT = 1.55), tenth antennomere about as long as wide (L/W = 0.88–1.05, M = 0.96, HT = 1.05).

Pronotum ( Fig. 20 ) egg-shaped, moderately convex, with shallow lateral impressions, about 1.1 times as long as wide (L/W = 1.10–1.16, M = 1.13, HT = 1.14) and almost as wide as head (PW/HW = 0.94–0.99, M = 0.96, HT = 0.97). Sides slightly widened posteriorly. Surface with moderately coarse and sparse punctures and with distinct interstices, punctation coarse and less dense than that on head and less dense along moderately narrow, in anterior part of pronotum more than one puncture wide unpunctured midline.

Elytra ( Fig. 20 ) subrectangular, with very slightly rounded sides and distinct depression along suture in first quarter behind scutellum, slightly flattened along suture, about 1.3 times as long as wide (R = 1.29–1.42, M = 1.36, HT = 1.33). Surface moderately coarsely and densely punctured. Interstices mostly as large as diameter of punctures, shining, without microscupture.

Abdomen ( Fig. 19 ) slightly widened to segment V, very finely and densely punctured. Interstices shining, without microsculpture. Tergite VII with distinct membranous fringe apically.

Male. Posterior margin of sternite VII broadly rounded ( Fig. 26 ), sternite VIII with relatively wide triangular emargination in posterior third ( Fig. 27 ). Aedeagus ( Figs. 21–25 ) long and slender, with relatively small roof shaped apical structures, about 0.85 mm long (n = 6, AL = 0.84–0.90 mm, M = 0.87 mm, HT = 0.88 mm), parameres longer than median lobe.

Female. Posterior margin of sternite VIII rounded.

Differential diagnosis. The new species is arranged in a small group of species with normally (depressed) punctured elytra, impunctate or sparsely punctate disc of the head and integument of tergites smooth between punctures together with P. hova Lecoq, 2008 , P. minima Lecoq, 2008 and a species described below— P. vohimana Janák & Baňař , sp. nov. The aedeagus is similar to that of P. hova , but the apical roof-shaped part of aedeagus is smaller and the species differs also externally by the head markedly narrowed behind eyes (cf. Fig. 29 in P. tanala and Fig. 28 in P. hova ) and by different shape of posterior margin of male sternite VII (cf. Fig. 26 in P. tanala and Figs. 16–17 in P. hova ).

Etymology. This species is named after the Malagasy ethnic group Tanala.

Distribution. Paulianidia tanala Janák & Baňař , sp. nov. is currently recorded only from the Ranomafana National Park in the central eastern part of Madagascar ( Fig. 121 ).

Bionomics. The type series was sifted from forest litter.

Figures

FIGURES 19–30. 19–27, 29–30: Paulianidia tanala sp. nov.: 19–23, 26–27, 29–30, holotype, 24–25, paratypes; 19, habitus; 20, forebody; 21–25, aedeagus (21, 24–25, ventral; 22, 1/3 lateral; 23, lateral); 26, male sternite VII; 27, male sternite VIII; 29, head; 30, left elytron. 28: P. hova Lecoq, paratype, head. Scales 1 mm: 19, 20; 0.5 mm: 21–25, 26–27, 28–30.

FIGURES 116–122. 116–120: Paulianidia steineri Lecoq, Andasibe: 116–118, aedeagus (116, ventral; 117, 1/3 lateral; 118, lateral); 119, male sternite VII; 120, male sternite VIII. Scale 0.5 mm: 116–120. 121: Distribution of P. densepunctata sp. nov., (rhombus), P. valohoaka sp. nov. (star), P. tanala sp. nov. and P. vohimana sp. nov. (rectangle). 122: Distribution of Paulianidia species in Madagascar.

FIGURES 1–18. 1–8: Paulianidia densepunctata sp. nov., holotype: 1, habitus; 2, forebody; 3, outer part of left elytron; 4–6, aedeagus (4, ventral; 5, 1/3 lateral; 6, lateral); 7, male sternite VII; 8, male sternite VIII. 9–18: P. hova Lecoq, paratypes: 9–14, 16–17; specimen from Ranomafana: 15, 17; 9, habitus; 10, forebody; 11–15, aedeagus (11, 14–15, ventral; 12, 1/3 lateral; 13, lateral); 16, male sternite VII; 17, posterior part of male sternite VII; 18, male sternite VIII. Scales 1 mm: 1–2, 9–10; 0.5 mm: 4–6, 7–8, 11–18; scale 0.1 mm: 3.