Hypotelus laevis ( Solsky, 1872 )

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 : 472-473

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.6017736

persistent identifier

https://treatment.plazi.org/id/03DB878D-FF83-D52D-CEB5-FB76D7AFFCB0

treatment provided by

Plazi

scientific name

Hypotelus laevis ( Solsky, 1872 )
status

 

Hypotelus laevis ( Solsky, 1872) View in CoL

( Figs. 18 View FIGURES 9 – 19 , 23, 24 View FIGURES 20 – 24 , 30 View FIGURES 25 – 35. 25 – 27 , 103, 104, 105 View FIGURES 83 – 108 , 113 View FIGURE 113 )

Piestus laevis Solsky, 1872: 311 (original description: “Monte-Rico ( Pérou)”); Blackwelder, 1944: 100 (distribution, error: Solsky, 1871); Herman, 2001: 1791 (distribution).

Piestus (Piestus) laevis: Bernhauer & Schubert, 1910: 7 (distribution, error: Solsky, 1871). Piestus (Eccoptopiestus) laevis: Scheerpeltz 1952: 295 (characters, distribution, error: Solsky, 1871). Hypotelus laevis: Caron et al., 2012: 550 View in CoL (species name transferred to Hypotelus View in CoL , neotype designated, redescription, notes,

distribution).

Type material. Hypotelus laevis ( Solsky, 1872) , neotype deposited in IRSNB, details in Caron et al. (2012).

Additional material. See Appendix 2.

Diagnosis. Hypotelus laevis may be easily distinguished from other species of Hypotelus by a pair of broad and pointed frontal processes on the head, as long as scape ( Figs. 18 View FIGURES 9 – 19 , 23–24 View FIGURES 20 – 24 ) and well-developed dorsal teeth on the mandibles, in both sexes, forming a bifurcate apex ( Fig. 30 View FIGURES 25 – 35. 25 – 27 ).

Redescription. BL: 3.0– 3.6 mm, BW: 0.8–0.9 mm. Body slightly convex; light brown to dark brown with apical one-quarter of elytra darker ( Fig. 18 View FIGURES 9 – 19 ). Dorsal integument of head and pronotum with fine punctures and undulate microstriae; elytra with dispersed fine punctures and only one longitudinal finely punctate stria close to elytral suture.

Male. Head. Supra-antennal area prominent joined with pair of broad and pointed frontal processes, as long as scape, and basal distance between processes narrower than basal width of each one ( Fig. 23 View FIGURES 20 – 24 ). Antennae reaching half-length of elytra; antennomere 3 longer than 2, 5–11 gradually increasing in length toward antennal apex.

Mandibles curved and bifurcate at apex, dorsal teeth shorter than ventral ( Fig. 30 View FIGURES 25 – 35. 25 – 27 ); inner margin with one acute tooth at middle. Mentum 2 times as wide as long.

Thorax. Pronotum wider than long (PW/PL=1.3); anterior angles rounded and not projected; apical two thirds with somewhat curved sides and basal third gradually narrowing toward the base; with complete internal midlongitudinal ridge and slight longitudinal median sulcus on almost entire length of pronotum. Elytra somewhat longer than wide (EL/BW=1.2), covering partially or entirely abdominal tergite 3.

Abdomen. Tergite 8 with posterior margin rounded; sternite 8 with posterior margin narrower and rounded; tergite 9 with short ventral struts; tergite 10 with some long setae on apex and posterior margin with short fringes; sternite 9 with posterior margin truncate and with two pairs of long setae. Median lobe of aedeagus with bulbous base in ventral view and curved shape in lateral view, with apex a little more expanded and rounded (see Caron et al. 2012, Figs. 246–247).

Female. Similar to male except for: pair of frontal processes slightly less developed than on male (24); sternite 8 with short setae on posterior margin; tergite 9 without ventral struts; tergite 10 with posterior margin weakly pigmented, with short fringes and four setae on each side at apex ( Fig. 104 View FIGURES 83 – 108 ); bursa copulatrix elongated ( Fig. 103 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. 105 View FIGURES 83 – 108 .

Geographical records. Bolivia and Peru (Cusco) ( Fig. 113 View FIGURE 113 ).

Biological notes. Hypotelus laevis has been collected on rotten palm and by Winkler extraction of leaf litter.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Hypotelus

Loc

Hypotelus laevis ( Solsky, 1872 )

Bortoluzzi, Sidnei, Caron, Edilson & Ribeiro-Costa, Cibele S. 2017
2017
Loc

Piestus (Piestus) laevis:

Caron 2012: 550
Scheerpeltz 1952: 295
Bernhauer 1910: 7
1910
Loc

Piestus laevis

Herman 2001: 1791
Blackwelder 1944: 100
Solsky 1872: 311
1872
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