Nacerdes

Dejean, 1834

false blister beetles

Species Guides

1

Nacerdes is a of false blister beetles in the Oedemeridae, containing approximately 13-40 described . The genus includes the wharf borer (Nacerdes melanura), a widely distributed wood-boring pest of marine structures. Most species information is derived from studies of N. melanura, while data for other species remains limited.

Nacerdes by (c) Zihao Wang, some rights reserved (CC BY), uploaded by Zihao Wang. Used under a CC-BY license.Nacerdes melanura by (c) Zihao Wang, some rights reserved (CC BY), uploaded by Zihao Wang. Used under a CC-BY license.Nacerdes melanura by (c) Mattia Menchetti, some rights reserved (CC BY), uploaded by Mattia Menchetti. Used under a CC-BY license.

Pronunciation

How to pronounce Nacerdes: //nəˈsɜːrdiːz//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Marine and coastal environments; specifically associated with wood in marine structures such as wharves, piers, and docks. Some have been recorded in trans-Adriatic distributions suggesting broader coastal Mediterranean associations.

Distribution

distribution for at least some . Nacerdes melanura has been recorded in England, New Zealand, Denmark, Germany, Siberia, Japan, Bahama Islands, Syria, Shanghai, Korea, South Africa, Brazil, Argentina, Rica, United States, and Canada. In Canada, it occurs in Newfoundland, Nova Scotia, New Brunswick, Quebec, Ontario, Manitoba, and British Columbia. Other species have been recorded in Italy, Greece (Peloponnese), Denmark, Norway, Sweden, and Vermont, USA.

Diet

Wood; larvae of at least Nacerdes melanura are wood-borers in marine structures. Larval food preferences have been noted for some other but specific details are not well documented.

Behavior

Wood-boring in marine/coastal wooden structures. are likely active on or near their larval substrate.

Ecological Role

Decomposer of wood in coastal marine environments; pest of wooden marine infrastructure.

Human Relevance

Nacerdes melanura is recognized as a pest of wood in marine structures, causing damage to wharves, piers, and other coastal wooden infrastructure. The "wharf borer" directly references this economic impact.

More Details

Species Count Discrepancy

Sources vary on count for this : Wikipedia reports about 13 described species, while other sources suggest approximately 40. This discrepancy may reflect taxonomic revisions or different classification treatments of subgenera.

Taxonomic Subdivision

Some are placed in subgenus Xanthochroa, as seen in Nacerdes (Xanthochroa) carniolica peloponesiaca.

Sources and further reading