Hypotelus corniculatus Bortoluzzi & Caron

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), Zootaxa 4273 (4), pp. 451-487 : 464-471

publication ID

https://doi.org/ 10.11646/zootaxa.4273.4.1

publication LSID

lsid:zoobank.org:pub:310C1107-096C-4C9B-A131-B0F69DB938E8

DOI

https://doi.org/10.5281/zenodo.6017732

persistent identifier

https://treatment.plazi.org/id/03DB878D-FF9B-D52F-CEB5-F996D0B9FE75

treatment provided by

Plazi

scientific name

Hypotelus corniculatus Bortoluzzi & Caron
status

sp. nov.

Hypotelus corniculatus Bortoluzzi & Caron View in CoL sp. nov.

( Figs. 16 View FIGURES 9 – 19 , 22 View FIGURES 20 – 24 , 100, 101, 102 View FIGURES 83 – 108 )

Type material. Holotype deposited in FMNH, female (photo, Fig. 16 View FIGURES 9 – 19 , 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 View FIGURES 20 – 24 ), antennomeres 5–11 longer than wide ( Fig. 16 View FIGURES 9 – 19 ) and by the shape of the bursa copulatrix ( Fig. 100 View FIGURES 83 – 108 ).

Description. BL: 4.2 mm, BW: 1.0 mm. Body slightly convex ( Fig. 16 View FIGURES 9 – 19 ); 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 View FIGURES 20 – 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 View FIGURES 83 – 108 ); bursa copulatrix as Fig. 100 View FIGURES 83 – 108 ; 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 View FIGURES 83 – 108 . 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.

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Hypotelus

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