Hypotelus scheerpeltzi Bortoluzzi & Caron, sp. nov.
Creators: name: Bortoluzzi, Sidnei
name: Caron, Edilson
name: Ribeiro-Costa, Cibele S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Hypotelus
Hypotelus scheerpeltzi

description: Hypotelus scheerpeltzi Bortoluzzi & Caron sp. nov.
(Figs. 11, 49, 73, 74, 82, 106, 107, 108, 113)
Type material. Holotype deposited in DZUP, male (photo, Fig. 11) [damaged specimen: without right anterior leg, tibia and tarsus of right middle leg and tarsus of right hind leg. Dissected, body glued on white card; abdominal segments 8 to 10 and aedeagus fixed on acetate plastic card and covered with Canada balsam], with labels: (1) “ Peru / Lamas ” [old white label, printed in black]; (2) “ Coleção / M. Alvarenga ” [old white label, printed in black]; (3) “ ♂ ” [old white label, printed in black]; (4) “COTYPUS/ Hypotelus / Weyrauchi / O. Scheerpeltz ” [pink label, first and last lines printed in black, except the letter O; other lines, handwritten]; (5) “ HOLOTYPE / Hypotelus scheerpeltzi / Bortoluzzi & Caron ” [red label, printed in black].
Paratype: 1 female, deposited in DZUP [dissected, abdominal segments 8 to 10 and spermatheca fixed on acetate plastic card and covered with Canada balsam], with the same labels of holotype, except: (3) “ ♀ ” [old white label, printed in black]; (4) “ PARATYPE / Hypotelus scheerpeltzi / Bortoluzzi & Caron ” [yellow label, printed in black].
Diagnosis. Hypotelus scheerpeltzi sp. nov. may be distinguished from other species of Hypotelus by the color pattern of the elytra (Fig. 11); males are distinguished by median lobe of aedeagus thinner in lateral view and apex as a hook (Fig. 73); females are distinguished by the shape of tergite 10 and bursa copulatrix (Figs. 106–108).
Description. BL: 3.0– 3.3 mm, BW: 0.8 mm. Body slightly convex; dorsal surface glossy; dark brown, except elytra yellowish (with two transverse darker areas, basal and apical) (Fig. 11); appendages lighter, except mandibles and antennomeres 4–11. Dorsal integument of head and pronotum with dispersed fine punctures and undulate microstriae absent on basal disc of head and on disc of pronotum; elytra with dispersed fine punctures and only one longitudinal finely punctate stria close to elytral suture.
Male. Head. Supra-antennal area slightly prominent. Antennae inserted ventrally and passing humeral angle; antennomeres 2 and 3 of equal length; 5–11 gradually increasing in length toward antennal apex. Mandibles symmetrical.
Thorax. Pronotum wider than long (PW/PL=1.5); anterior angles rounded and slightly prominent; apical half with somewhat parallel sides and basal half gradually narrowing toward the base; with complete internal midlongitudinal ridge and slight longitudinal median sulcus only on basal two-third. Elytra somewhat longer than wide (EL/BW=1.2), can partially cover abdominal tergite 3.
Abdomen. Tergite 8 with posterior margin truncate (Fig. 49); sternite 8 at posterior margin with a small weakly pigmented strip and short setae; tergite 9 with short ventral struts; sternite 9 with posterior margin truncate and with two pairs of long setae; tergite 10 with posterior margin weakly pigmented, short fringes and four setae on each side. Median lobe of aedeagus with slightly bulbous base and apex somewhat pointed in ventral view; curved shape and thin in lateral view, with apex curved as a hook (Figs. 73–74).
Female. Similar to male except for: abdominal sternite 8 with posterior margin sinuous (Fig. 82); tergite 10 truncate at apex (Fig. 107); bursa copulatrix forming like a narrow ring (Fig. 106); ovipositor consisting of a pair of weakly pigmented hemisternites and a pair of more apical coxites, and with many long setae on apex; spermatheca as Fig. 108.
Geographical records. Peru (San Martín) (Fig. 113).
Biological notes. No data.
Etymology. The specific name refers to Otto Scheerpeltz, the researcher who first recognized it is as a new species but did not describe it.
Remarks. The type material bears a label handwritten by Otto Scheerpeltz, with the name “ Weyrauchi ” on it. A description for Hypotelus weyrauchi has never been published and is therefore treated as a manuscript name of O. Scheerpeltz. It is probable that there are other specimens labeled alike.
description: Published as part of Bortoluzzi, Sidnei, Caron, Edilson & Ribeiro-Costa, Cibele S., 2017, Revision and phylogeny of Hypotelus Erichson: a Neotropical genus of minute rove beetles (Coleoptera, Staphylinidae, Piestinae), pp. 451-487 in Zootaxa 4273 (4) on pages 477-478, DOI: 10.11646/zootaxa.4273.4.1, http://zenodo.org/record/803644