Revision of the genus Pselaphomorphus Motschulsky, 1855 (Staphylinidae, Pselaphinae: Jubini) Author Vásquez-Vélez, Laura M. text Zootaxa 2016 4107 1 1 48 journal article 39180 10.11646/zootaxa.4107.1.1 dcbcfda1-5e9d-4f60-aea6-bcedb6402494 1175-5326 261931 248E86E7-C8D5-4542-81EE-4854276C7CE0 Pselaphomorphus newtoni Vásquez-Vélez n.sp. ( Fig. 25 ) Diagnosis. Pselaphomorphus newtoni is characterized by the combination of a medium body size (2.0–3.0 mm), antennae without evident clava, base of aedeagus regular, the accessory lobe is flattened, as long as the median lobe. FIGURE 25. Pselaphomorphus newtoni n. sp. A. Dorsal habitus. B. Aedeagus dorsal view. C. Aedeagus lateral view. Description. Body length 2.4 mm . Body dorsally flattened, reddish with yellow pilosity. Head pear-shaped (length: 0.55, wide: 0.4 mm ), base of antennal tubercle as long as diameter of eye. Longitudinal sulcus wider between the eyes, spindle shaped. Eyes kidney shaped (diameter: 0.15 mm ). Antennal length: 1.4 mm . Antennomere length as follows: 1 ( 0.1 mm ), 2 and 3 ( 0.06 mm ), 4 ( 0.08 mm ), 5 ( 0.1 mm ), 6 ( 0.08 mm ), 7 and 8 ( 0.14 mm ), 9 ( 0.16 mm ), 10 ( 0.14 mm ), and 11 ( 0.24 mm ),clava absent. Maxillary palpi yellowish with short, clear and even pilosity. Pronotum transverse (length: 0.45, wide: 0.5 mm ). Lateral lobes trapezoidal, basally and apically rounded. Antebasal lobe rectangular. Pronotal disc rectangular. Elytra length: 0.6; wide: 0.8 mm . Humeral teeth and elevation present. Sutural fovea transversely elongate, sutural stria linear. basal discal fovea transversely elongate, discal depression present. Abdominal segments I-V dorsally with lengths as follows: 0.35, 0.1, 0.1, 0.1, 0.1 mm . Genitalia. Aedeagal base symmetrical and triangular, arms absent. Median lobe flattened and medially divided in two. Accessory lobe located below median lobe, flattened ( Figs. 25 B, 25C). Type material. Holotype (male): “ Brazil , Manaus, Taruma, Mirin Rio Negro. J. Adis” ( MHNG ). Etymology. Patronymic; named after Staphylinidae specialist Dr. Alfred F. Newton (Field Museum, Chicago) whose strong support is gratefully acknowledged.