Microsomus Bright, 2019: 178

Johnson, Andrew J., Hulcr, Jiri, Knížek, Miloš, Atkinson, Thomas H., Mandelshtam, Michail Yu., Smith, Sarah M., Cognato, Anthony I., Park, Sangwook, Li, You & Jordal, Bjarte H., 2020, Revision of the Bark Beetle Genera Within the Former Cryphalini (Curculionidae: Scolytinae), Insect Systematics and Diversity 4 (3), No. 1, pp. 1-81 : 41-42

Microsomus Bright, 2019: 178

Type of genus

Microsomus atomus Bright, 2019 .

Diagnosis

This genus can be distinguished from other Trypophloeini by the

antennae, with a single, procurved suture, and by the lack of any

vestiture on the elytra.

Female

Eye weakly emarginated. Antennal club with single, procurved su-

ture marked by setae. Four marginal asperities. Punctures on elytra

broad. No discernable vestiture on elytra.

Male

Unknown.

Distribution

Saint Croix ( U.S. Virgin Islands).

Remarks

Monotypic. This genus was described in the final stages of this

manuscript preparation. Without molecular and internal characters

examined, the placement within Trypophloeini is not confirmed.

Only one specimen is known, the correct placement will be assessed

when more specimens are available.

The genus-group name is also a homonym of Microsomus

Burlini, 1957, a subgenus of Stylosomus Suffrian, 1848 ( Coleoptera :

Chrysomelidae : Cryptocephalinae ). We refrain from creating a re-

placement name for the genus until specimens have been assessed.

Type material examined

Photograph of the holotype of Microsomus atomus Bright, 2019 .

Included species

Microsomus atomus Bright, 2019: 178 .