Parosus brasilianus, Makranczy & H-, 2014

Makranczy, György, 2014, Review of the genus Parosus Sharp, 1887 (Coleoptera: Staphylinidae, Oxytelinae), Revue suisse de Zoologie 121 (1), pp. 77-133 : 92-94

Parosus brasilianus sp. nov. Figs 31, 35, 42, 45, 68-70

TYPE MATERIAL: HOLOTYPE (3), “ BRAZIL: Est. Biol. Boracea [23°38'S, 45°52'W], Salesopolis, SP [= Estado de São Paulo], XII-17-26-1969, [leg.] J. M. & B. A. Campbell ” ( CNCI) . – PARATYPES (3): BRAZIL: Estado de São Paulo, Salesopolis, Estação Biológica de Boracéia , 17-26.XII.1969, leg. J. M. & B. A. Campbell ( CNCI, 13, 1, MHNG, 1♀) .

DESCRIPTION: Forebody as in Fig. 45. Measurements (n=2): HW = 0.59 (0.56- 0.63); TW = 0.59 (0.55-0.63); PW = 0.52 (0.49-0.55); SW = 0.56 (0.55-0.56); MW = 0.69 (0.68-0.69); AW = 0.60 (0.59-0.60); HL = 0.43 (0.40-0.46); EL = 0.16 (0.15-0.16); FL = 0.11 (0.11-0.11); TL = 0.14 (0.12-0.15); PL = 0.40 (0.38-0.41); SL = 0.65 (0.64- 0.66); SC = 0.63 (0.62-0.64); BL = 2.90 (2.78-3.01); FB = 1.55 (1.48-1.61) mm. Body 'bicoloured' (usually less contrasting than P. hilaris). Head dark brown, supraantennal prominences and front of clypeus much lighter, reddish light or medium brown, mediad of supraantennal prominences two larger black spots near ends of frontoclypeal (= epistomal) sulcus, pronotum reddish light brown (sometimes almost orange), elytra dark brown except shoulder area (well delimited, from scutellum to 2/5 of elytra) lighter (yellow to light brown). Abdomen yellow to light brown, tergites V-VI darkened (medium brown). Legs, mouthparts and antennae yellow to light brown. Pubescence medium short and medium dense, on abdomen longer and a little more sparse.

Head and pronotum. Mid-antennal articles very slightly elongate (antennomere 6 length:width = 0.058: 0.052 mm). Clypeus (Fig. 68) trapezoid, ratio of longitudinal distance of supraantennal prominence tip from eyefront to the same from clypeal front = 0.29-0.44. Infraocular ridge (Fig. 70) strong, continuing in a strong, shiny postocular process and keel at posterior edge of eye. Temple strongly curved, but most strongly in middle (still not angled), eye fitting rather closely in this arch. Pronotum (Fig. 68) with maximum width 1.61-1.64x base width, sides curved all the way, most strongly anteriorly, posteriorly only very slightly, anterior angles rather obtuse. Clypeus and supraantennal ridges almost unpunctured (only a few small punctures), rather shiny. Frontoclypeal groove rather strong and deep, with umbilicate punctures in it. Middle of vertex posteriorly slightly impressed, but in middle of disc a transversal area more elevated. In middle this elevation divided by a bunch of more deeply impressed punctures (forming something like a longitudinal groove towards frontoclypeal impression). Posterior part of pronotal midline as an elevated and shiny stripe, anteriorly continuing into two fine lines enclosing a depressed area filled with scabrous sculpture. Along sides of posterior half two longitudinal impressions, also filled with scabrous sculpture. Pronotal sides with two oblique depressions around middle. Head with 18-22 'longitudinal' puncture lines, pronotum with about 16-18 'longitudinal' puncture lines, punctation indefinitely loosened mid-vertex, punctures on centre of pronotal disc very obscure.

Elytra and abdomen. Elytra (Fig. 69) slightly dilating posteriorly, with two small, roundish, rather deep impressions behind the scutellum. Medially serrate fringe (Fig. 31) present on hind margin of tergite VII. Punctation on head, pronotum and

FIGS 32-43

(32-34) Parosus taliaferroae sp. n.; female tergite IX (32), female genital appendages (33), spermatheca (34). (35-36) Spermathecae. P. brasilianus sp. n. (35), P. hermani sp. n. (36). (37-39) Parameres in their lateral views. P. longipennis sp. n. (37), P. major sp. n. (38), P. skalitzkyi Bernhauer (39). (40-43) Aedeagi, frontalviews. P. antillarum Wendeler (40), P. bicoloratus sp. n. (41), P. brasilianus sp. n. (42), P. campbelli sp. n. (43). Scalebar = 0.09 mmfor 37, 0.1 mm for 39, 40, 42, 0.13 mm for 32, 34-36, 0.14 mm for 33, 41, 43, 0.24 mm for 38.

abdomen with similar sizes, but elytral punctation not umbilicate, interspaces about 1/3-2/3 of puncture diameters. Bases of tergites (posterior to basal ridges) almost without microsculpture, segments with scattered, fine punctures only. Aedeagus as in Fig. 42, spermatheca as in Fig. 35.

ETYMOLOGY: The species is named after the country of the type locality.

COMPARATIVE NOTES: From the other relatively small-sized and 'bicoloured' species ( P. portobelo and P. longipennis ) it can be distinguished by the well-developed postocular process (very weak in the other two species). Regarding the similar sized 'unicoloured' species that have similar head shape (strongly developed postocular process), it can be distinguished from P. newtoni by the less transverse pronotum anterior (3/5 base width/anterior width as opposed to 4/ 7 in P. newtoni ), from P. skalitzkyi by the moderately 'bicoloured' body and the strongly punctate elytra.

DISTRIBUTION: The species is known from one locality in Brazil (Estado de São

Paulo), and is probably inhabitant of atlantic forest remnants.

BIONOMICS: Unknown.