Epicautini

J.B. Parker & Böving, 1924

Genus Guides

Epicauta(Burning Blister Beetles)
Linsleya

Epicautini is a tribe of blister beetles ( Meloidae) established by Parker & Böving in 1924. The tribe includes the large Epicauta (approximately 400 ), which is distributed nearly worldwide except Australia and Antarctica, with greatest diversity in temperate and semi-arid regions of the Americas. Members are known agricultural pests, with some species causing significant crop damage. The genus Epicauta is particularly diverse in northern Arizona, USA.

Epicauta abadona by no rights reserved, uploaded by Sinaloa Silvestre. Used under a CC0 license.

Epicauta aspera by (c) Tom Kennedy, some rights reserved (CC BY), uploaded by Tom Kennedy. Used under a CC-BY license.

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

Pronunciation

How to pronounce Epicautini: /ˌɛpɪˈkaʊtɪnaɪ/

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

Identification

Epicautini can be distinguished from related tribes in Meloinae by morphological characters used in phylogenetic analysis, including features of the Epicauta maculata group. The tribe contains Epicauta (with subgenera Epicauta and Macrobasis), Linsleya (with subgenera Linsleya and Linsleyina), and related in South America. Species-level identification requires examination of genitalia and other morphological details.

Images

Habitat

Temperate and semi-arid regions; greatest diversity occurs in these zones. Tropical of middle America have historically served as barriers to faunal exchange. Collection records include low-lying roadsides adjacent to grazed areas.

Distribution

Nearly worldwide distribution: North America (particularly diverse in northern Arizona, USA; ranging north to southern edge of Northwest Territories, Canada), South America, and Old World regions including Africa, Europe, and Asia. Absent from Australia and Antarctica. Distribution modeling indicates presence in Nearctic and Neotropical regions with Mexican and South American transition zones.

Behavior

Males of at least some (e.g., Epicauta atomaria) perform three distinct courtship : quiescent period, antennal rubbing, and mounting. Courtship is dominated by quiescent period and antennal rubbing, with mounting occurring less frequently and for shorter duration.

Ecological Role

Some are agricultural pests affecting diverse crops of economic importance, particularly in South America.

Human Relevance

Epicauta are recognized as significant agricultural pests causing damage to crops. The has been subject to extensive taxonomic and phylogenetic study due to its economic importance and large .

Similar Taxa

LyttiniAnother tribe in Meloinae; distinguished by different morphological characters and distribution patterns, with Lyttini showing different biogeographic patterns in the Americas
MeloiniTribe in Meloinae containing oil beetles (Meloe); distinguished by different body form and strategies
EupomphiniNew World tribe in Meloinae with distinct morphological features and more restricted distribution patterns compared to Epicautini

More Details

Taxonomic composition

The tribe includes the Epicauta (subgenera Epicauta and Macrobasis), Linsleya (subgenera Linsleya and Linsleyina), and South American groups. The Epicauta maculata species group has been redefined based on phylogenetic analysis showing South American species form a within it.

Phylogenetic research

Cladistic analysis based on 81 morphological characters has clarified relationships within the Epicauta maculata group, supporting the monophyly of South American within this group and confirming the validity of the Epicauta maculata group with redefined characters.

Climate modeling

Distribution modeling using 12,130 occurrence points and 19 bioclimatic variables indicates that seven bioclimatic variables are most influential in determining current and potential future distribution under changing climate conditions.