Hypotelus corniculatus 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 corniculatus

description: Hypotelus corniculatus Bortoluzzi & Caron sp. nov.
(Figs. 16, 22, 100, 101, 102)
Type material. Holotype deposited in FMNH, female (photo, Fig. 16, image by Crystal Maier, copyright Field Museum of Natural History, Chicago) [Dissected, body glued on white card; abdominal segments 8 to 10 fixed on acetate plastic card and covered with Canada balsam], with labels: (1) “ Chitaría, Alto Sl / Corrial [?], 9-13.IV.41./ Costa Rica ” [old white label, handwritten]; (2) “Field Mus. Nat. Hist./1966/A, Bierig Colln./Acc. Z-13812” [white label, printed in black]; (3) “ HOLOTYPE / Hypotelus corniculatus / Bortoluzzi & Caron ” [red label, printed in black].
Diagnosis. Hypotelus corniculatus sp. nov. may be distinguished from other species of Hypotelus by the deflected and projected front with two small and pointed frontal processes (Fig. 22), antennomeres 5–11 longer than wide (Fig. 16) and by the shape of the bursa copulatrix (Fig. 100).
Description. BL: 4.2 mm, BW: 1.0 mm. Body slightly convex (Fig. 16); dorsal surface matte (except elytra glossy); entirely brown with legs a little lighter. Dorsal integument of head and pronotum with fine punctures and granulate microsculpture; elytra with one longitudinal finely punctate stria close to internal margin; abdomen with fine punctures and granulate microsculpture.
Female. Head. Supra-antennal area visibly prominent, deflected front and with pair of small and pointed frontal processes, about half-length of scape (Fig. 23–24). Antennae almost reaching apex of elytra; some long setae on apex of antennomeres 3–11; antennomere 2 slightly shorter than 3; 5–11 longer than wide and gradually increasing in length toward antennal apex. Mandibles symmetrical.
Thorax. Pronotum wider than long (PW/PL=1.45); 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 slight longitudinal median sulcus on almost entire length of pronotum; small depression at middle on basal half, near to posterior margin. Elytra somewhat longer than wide (EL/BW=1.2), not covering abdominal tergite 3.
Abdomen. Tergite 8 with posterior margin truncate; sternite 8 with posterior margin rounded and with short setae; tergite 10 with posterior margin weakly pigmented, with short fringes and three setae on each side at apex (Fig. 101); bursa copulatrix as Fig. 100; 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. 102. Male. Unknown.
Geographical records. Costa Rica.
Biological notes. No data.
Etymology. The specific name refers to the small “horns” on front of the head and it is a Latin masculine adjective, corniculatus, which means horned.
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 464-471, DOI: 10.11646/zootaxa.4273.4.1, http://zenodo.org/record/803644