Revision and phylogeny of Hypotelus Erichson: a Neotropical genus of minute rove beetles (Coleoptera, Staphylinidae, Piestinae) Author Bortoluzzi, Sidnei Author Caron, Edilson Author Ribeiro-Costa, Cibele S. text Zootaxa 2017 4273 4 451 487 journal article 32893 10.11646/zootaxa.4273.4.1 3f4e48f2-f9a0-434e-8ec3-be455a1ec995 1175-5326 803644 310C1107-096C-4C9B-A131-B0F69DB938E8 Hypotelus andinus ( Bernhauer, 1917 ) ( Figs. 19 , 114 ) Piestus ( Antropiestus ) andinus Bernhauer, 1917 : 45 (original description, type locality: ‘West-Kolumbien: Umgebung von Cali am Rio Cauca’); Scheerpeltz, 1933 : 993 (distribution); Scheerpeltz, 1952 : 295 (characters, distribution); Piestus andinus : Blackwelder, 1944 : 100 (distribution); Herman, 2001 : 1788 (distribution); Newton et al ., 2005 : 37 (distribution). Piestus ( Antropiestus ) strigipennis Bernhauer, 1921 : 65 (original description, type locality; ‘ Bolivien : Yuracaris’); Scheerpeltz, 1933 : 993 (distribution); Scheerpeltz, 1952 : 295 (characters, distribution); Caron et al ., 2012 : 551 (as junior synonym). Piestus strigipennis : Blackwelder, 1944 : 101 (distribution); Herman, 2001 : 1795 (distribution). Hypotelus andinus : Caron et al ., 2012 : 551 (redescription, lectotype designed, distribution, notes). Type material. Piestus ( Antropiestus ) andinus Bernhauer, 1917 . Lectotype (designated by Caron et al . 2012 ) deposited in FMNH, male [damaged specimen: without right anterior leg] with labels: (1) “♂” [white label, handwritten, together with the specimen]; (2) “Columbia occ/Cali. Fassl” [white label/printed in black]; (3) “ Antropiestus / andinus /Brnh. Typus” [light yellow label, handwritten]; (4) “♂” [white label, printed in black]; (5) “LECTOTYPE/ Piestus andinus / Bernhauer, 1917 /det. E. Caron, 2009” [red label, printed in black]; (6) “Chicago NHMus/M.Bernhauer/Collection” [white label, printed in black]; (7) “FMNH-INS/0000 0 63 446” [white label, printed in black]; (8) "Photographed/Kelsey Keaton 2014/Emub Catalog" [blue label, printed in black]. Note : Caron et al . (2012) cited one paralectotype deposited in NMW (Naturhistorische Museum Wien , Wien , Austria ). Piestus ( Antropiestus ) strigipennis Bernhauer, 1921 . Syntype deposited in FMNH ( Caron et al. 2012 ) (not examined). Diagnosis. Hypotelus andinus may be easily distinguished from other species of Hypotelus by the conspicuous, deep and large depression at the middle of the pronotum ( Fig. 19 ). Redescription. BL: 6.1 mm , BW: 1.3 mm . Body slightly convex; dorsal surface matte, except elytra; entirely black with legs a little lighter ( Fig. 19 ). Dorsal integument of head and pronotum with fine punctures and granulate microsculpture; elytra each with one longitudinal finely punctate stria close to sutural margin, conspicuous only on basal half; metaventrite and abdomen with fine punctures and granulate microsculpture. Male. Head . With five moderately sized punctures with long setae on basal half of dorsal margin of eyes; supra-antennal area visibly prominent. Antennae almost reaching apex of elytra; every antennomeres with some dispersed long setae, setae on inner face are longest; antennomere 3 longer than 2; 5–11 gradually increasing in length toward antennal apex. Labrum with median third deeply emarginate, three pairs of long setae medially; lateral thirds with two pairs of long setae, two apical and two subapical. Mandibles symmetrical, one acute tooth on each inner margin. Mentum 2 times as wide as long. Thorax. Pronotum wider than long (PW/PL=1.25); anterior angles rounded and slightly prominent; apical twothirds with somewhat curved sides and basal one-third gradually narrowing toward the base; with complete internal mid-longitudinal ridge and conspicuous longitudinal median sulcus; conspicuous and deep large depression at middle. Elytra somewhat longer than wide (EL/BW=1.2), covering abdominal tergite 3. Abdomen. Apical abdominal segments 8 to 10 and genitalia were not studied, but according to Caron et al . (2012) the shape of the structures are: sternite 8 with posterior margin truncate; tergite 9 with short ventral struts; tergite 10 with some long setae on apex and posterior margin with short fringes, basal half not divided longitudinally; sternite 9 with two pairs of long setae and truncate apex. Median lobe of aedeagus somewhat globose apex in lateral view, tube closed in dorsal view; length of parameres exceeds apex of median lobe by a little (see Caron et al . 2012 , Figs. 248–250). Female. Not examined. According to Caron et al . (2012) the female is similar to male except for: elytra a little shorter, covering only basal half of abdominal tergite 3; abdominal sternite 8 with pointed apex and short setae on posterior margin; tergite 10 divided longitudinally in basal half (see Caron et al . 2012 , Fig. 151); ovipositor consisting of a pair of weakly pigmented hemisternites and a pair of more apical coxites, and with many long setae on apex (see Caron et al . 2012 , Fig. 155). Spermatheca unknown. Geographical records. In the current study, the species was examined from Colombia . Caron et al . (2012) also recorded it from Ecuador and Bolivia ( Beni ) ( Fig. 114 ). Biological notes. Hypotelus andinus has been collected in a Malaise trap.