AnimaliaColeopteraHydrophilidaeGirónJennifer C.ShortAndrew Edward Z.Review of the Neotropical water scavenger beetle genus Tobochares Short & García, 2007 (Coleoptera, Hydrophilidae, Acidocerinae): new lineages, new species, and new recordsZookeys222202110199314010.3897/zookeys.1019.59881B9756193-795A-551D-A3A8-B914A9482A0A Tobochares emarginatus species groupDiagnosis.

The emarginatus species group can be recognized by the oblique and posteriorly directed anterior margin of the eye in lateral view, which emarginates the eye to about a quarter of its dorsal width (Fig. 2C; Kohlenberg and Short 2017: fig. 6C–F), the presence of a broad, ovoid to diamond-shaped glabrous patch on the metaventrite (Fig. 5F), the dense and uniform distribution of the hydrofuge pubescence on the abdominal ventrites (Fig. 5F), and the moderate (in number and size) metatibial spines.

10.3897/zookeys.1019.59881.figure6CFD1CA49-A72C-53AB-B717-C77E4BF38B9F

Habitus of Tobochares spp. in the communis species group A–CT. communisA dorsal view B lateral view C ventral view D–FT. micropsD dorsal view E lateral view F ventral view. Scale bars: 1 mm.

https://binary.pensoft.net/fig/512604Composition.

This species group presently contains three species: T. canthus, T. emarginatus, and T. fusus sp. nov.

10.3897/zookeys.1019.59881.figure71790940D-0876-57AC-8755-F527B2DDF4F9

Habitus of Tobochares spp. in the communis species group A–CT. anthonyaeA dorsal view B lateral view C ventral view D–FT. aturesD dorsal view E lateral view F ventral view G–IT. pemonG dorsal view H lateral view I ventral view. Scale bars: 1 mm.

https://binary.pensoft.net/fig/51260510.3897/zookeys.1019.59881.figure280986B23-97A3-5C94-BA74-4263A3B5D6E7

Heads of Tobochares spp. A, BT. goias, black mark pointing to canthus emarginating the eye A dorsal view B anterolateral view CT. fususD, ET. luteomargo, black mark pointing to straight anterior margin of the eye D dorsal view E anterolateral view FT. romanoaeGT. pemonHT. communisIT. microps.

https://binary.pensoft.net/fig/51260010.3897/zookeys.1019.59881.figure5274EBD1D-5225-5326-A1DA-70FC6D807AE1

Habitus of Tobochares spp. in the luteomargo and emarginatus species group A–CT. luteomargoA dorsal view B lateral view C ventral view. D–FT. fususD dorsal view E lateral view F ventral view. Scale bars: 1 mm.

https://binary.pensoft.net/fig/512603KohlenbergATShortAEZ (2017) Revision of the Neotropical water scavenger beetle genus Tobochares Short and García, 2007 (Coleoptera, Hydrophilidae, Acidocerinae).ZooKeys669: 113–146. https://doi.org/10.3897/zookeys.669.11773