Melanotus

click beetles (insect genus), dark-spored mushrooms (fungal genus)

Melanotus is a of ( ) comprising approximately 800 described distributed worldwide. The genus includes several economically significant agricultural pests, particularly species whose damage roots and tubers. Research has identified for some species, enabling development of and management tools. The genus name Melanotus is also applied to a fungal genus in Strophariaceae, but this record addresses the genus.

Melanotus testaceus by no rights reserved, uploaded by Nick Bédard. Used under a CC0 license.

Melanotus similis by (c) jimeckert49, some rights reserved (CC BY). Used under a CC-BY license.

Melanotus opacicollis by (c) Andrew Meeds, some rights reserved (CC BY), uploaded by Andrew Meeds. Used under a CC-BY license.

Pronunciation

How to pronounce Melanotus: //mɛˈlænətəs//

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Images

Distribution

Worldwide distribution with particularly well-studied in Western Eurasia and North America.

Human Relevance

Several Melanotus are significant agricultural pests. () feed on roots and tubers of including potatoes, corn, and other vegetables, causing substantial . Melanotus communis, known as the corn wireworm, is a major pest in North agriculture. Research on for M. piceatus and M. insipiens has enabled development of -based tools. Management strategies include nematodes and chemical control.

Similar Taxa

AgriotesAnother containing economically important pests; distinguished by specific chemistry and morphological characters
LimoniusRelated with similar pest biology; differ in chemical structure (e.g., Limonius uses different ester compounds)
Conoderus with similar larval habits; identification requires examination of morphological features and specificity

More Details

Pheromone chemistry

identified in Melanotus include sesquiterpene esters: (2Z,6E)-farnesyl acetate for M. piceatus and decyl butanoate for M. insipiens. Male show selective electrophysiological response to single components.

Research applications

Cornell University vegetable research (2023-2024) evaluated nematode strains (Steinernema carpocapsae, S. feltiae, Heterorhabditis bacteriophora) for of Melanotus communis in potatoes.

Fungal homonym

The name Melanotus is also used for a fungal in Strophariaceae (Basidiomycota), creating potential nomenclatural confusion. The fungal genus is associated with or potentially synonymized under Deconica.