Baeocera Erichson, 1845

Groll, Elisa Von, 2025, Twenty new species of Scaphidiinae (Coleoptera: Staphylinidae) from Minas Gerais, Southeast Brazil, European Journal of Taxonomy 990, pp. 1-145 : 24-25

publication ID	https://doi.org/10.5852/ejt.2025.990.2903
publication LSID	lsid:zoobank.org:pub:EBB48E32-AFE7-45DE-8985-665968426DB0
persistent identifier	https://treatment.plazi.org/id/F46F87B6-FFC8-234E-1409-60D8FE3C6854
treatment provided by	Plazi
scientific name	Baeocera Erichson, 1845
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Treatment

Genus Baeocera Erichson, 1845 View in CoL

Figs 2D, J View Fig , 14–43 View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig

Baeocera Erichson, 1845: 4 View in CoL . Type species: Baeocera falsata Achard, 1920 View in CoL .

Sciatrophes Blackburn, 1903: 100 View in CoL . Type species: Sciatrophes latens Blackburn, 1903 View in CoL ; by monotypy.

Cyparella Achard, 1924: 28 View in CoL . Type species: Scaphisoma rufoguttatum Fairmaire, 1898 View in CoL ; by original designation.

Amaloceroschema Löbl, 1967: 1 (as subgenus). Type species: Baeocera freudei Löbl, 1967 View in CoL ; by original designation.

Eubaeocera Cornell, 1967: 2 View in CoL , fig. 1. Type species: Baeocera abdominalis Casey, 1900 View in CoL ; by original designation.

With over 300 described species, Baeocera View in CoL is one of the largest Scaphidiinae View in CoL genera, which can be found on all continents. However, to date, Brazil has only one known species: Baeocera freudei Löbl, 1967 View in CoL (state of Amazonas). In this work, six new species are described, and one species group is proposed. The six new species present a similar external morphology and were collected simultaneously (same host and days), making them difficult to distinguish. In this context, associating females with their respective species proved particularly challenging, as the most diagnostic characters are found in the male genitalia. This issue was partially resolved through complete dissections, enabling comparison of additional structures (e.g., metendosternite, profurca).

General description (* = variable characters within the genera, but not variable in the species below; Löbl & Leschen 2003b; Leschen & Löbl 2005)

HEAD. Labral setae simple* ( Fig. 15A View Fig ). Mandible unidentate* ( Fig. 15B–C View Fig ). Last maxillary palpomere aciculate; galea narrow (longer than wide), with paniculate brush; lacinia lacking basal setae ( Fig. 15D View Fig ). Setae on adoral surface of hypopharynx setose; last labial palpomere thin ( Fig. 15E View Fig ). Antennomere III and IV not shortened ( Fig. 14J View Fig ). Gular pores present. Frontoclypeal suture present ( Fig. 14H View Fig ).

PROTHORAX. Hypomeron visible in lateral view*; pronotal angles acute and slightly extending anapleural suture* ( Fig. 14B View Fig ). Prothoracic corbiculum present ( Fig. 15K View Fig ).

MESOTHORAX. Mesoventral process paxillate ( Fig. 16A View Fig ). Mesoventral space (prepectus) absent. Mesoventral lines connected to mesocoxal cavity; impunctate* ( Fig. 15M View Fig ). Secondary lines absent. Mesanepisternum finely and sparsely punctate and pubescent*. Mesepimeron exposed* ( Fig. 14B View Fig ).

METATHORAX. Metanepisternum exposed ( Fig. 14C View Fig ). Submesocoxal lines present. Metacoxal process short*. Metaventral setose patch present* ( Fig. 14G View Fig ).

WINGS. Hind wings developed ( Fig. 16I View Fig ). Basal and sutural elytral striae connected*; lateral striae present*; apical serrations present*.

LEGS. Profemoral ctenidium present ( Fig. 2H View Fig ). Mesotibiae bearing outer spines and two ventral spines.

ABDOMEN. Submetacoxal lines parallel to coxae; punctate*. Membranes of abdominal ventrites with brick-wall pattern.