Holotrochus pubescens, Sharp, 1876

Irmler, Ulrich, 2013, New species of the genus Mimogonia and Holotrochus from South America (Coleoptera: Staphylindae: Osoriinae), Acta Entomologica Musei Nationalis Pragae 53 (1), pp. 155-176: 161-162

publication ID

http://doi.org/10.5281/zenodo.3532762

publication LSID

lsid:zoobank.org:pub:AEE33AD8-A165-4418-B42E-9831EA69876E

DOI

http://doi.org/10.5281/zenodo.4427159

persistent identifier

http://treatment.plazi.org/id/03A3FB75-3F57-1E6F-FEDE-FAF042260C22

treatment provided by

Plazi

scientific name

Holotrochus pubescens
status

 

Key to the species of the Holotrochus pubescens   group

The species of this group are characterised by the pubescent body and the margined anterior edge of the pronotum.

1. Small species, not longer than 2.5 mm. .......................................................................... 2

– Larger species, at least 3.0 mm. ..................................................................................... 3

2. Punctation of fore-body sparse and fine, interstices between punctures wider than diameter of punctures. ................................................................................ H. subtilis Sharp, 1876  

– Punctation of fore-body coarse and dense, interstices between punctures much smaller than diameter of punctures. ............................................... H. danoffburgi Irmler, 2001  

3. Pronotum widest close to posterior angles ( Fig. 17E View Fig ); evenly narrowed to smoothly rounded anterior angles, antennomeres 6 and 7 more or less quadrate ( Fig. 5 View Figs 4–7. 4 ). ............................. ......................................................................................................... H. siolii Irmler, 2001  

– Pronotum widest close to middle; sides evenly narrowed to obtuse or rectangular posterior and obtuse anterior angles, antennomeres 6 and 7 either quadrate or wider than long. .... 4

4. Antennomeres 6 an 7 wider than long ( Fig. 4 View Figs 4–7. 4 ), pronotum evenly narrowed to posterior angles, posterior angles obtuse ( Fig. 17A View Fig ). ............................ H. pubescens Sharp, 1876  

– Antennomeres 6 and 7 quadrate, pronotum with short emargination in front of posterior angles, posterior angles rectangular. .............................................................................. 5

5. Smaller species, 3.3 mm long ( Fig. 17D View Fig ). ............................................. H. adisi   sp. nov.

– Larger species, 3.7 mm long ( Fig. 17B View Fig ). ............................. H. amazonicus Irmler, 1981