An unusual Cretaceous beetle with affinity to Anamorphidae (Coleoptera: Coccinelloidea).

Coccinelloid beetles have a sparse fossil record in the Mesozoic. Here, we describe and illustrate an unusual coccinelloid beetle, gen. et sp.

First Member of 'Higher Endomychidae' (Coleoptera: Coccinelloidea) from the Mid-Cretaceous Amber of Myanmar and New Insights into the Time of Origin of the Handsome Fungus Beetles.

A new genus and species of the family Endomychidae (Coleoptera: Coccinelloidea): Tomaszewska, Szawaryn and Arriaga-Varela are described, diagnosed and illustrated from the mid-Cretaceous amber from northern Myanmar. To test the systematic placement of the new extinct genus and species within the family, a phylogenetic analysis was conducted. A dataset of 38 morphological characters scored for 29 species (including the new fossil taxon), members of Endomychidae and representatives of Coccinelloidea as outgroups were analyzed using maximum parsimony.

Giant water scavenger beetles Hydrophilus subgenus Dibolocelus (Coleoptera: Hydrophilidae) from Mexico with description of two new species.

The Hydrophilus (Dibolocelus) Bedel species from Mexico and adjacent areas are treated on the basis of the study of 142 adult specimens and published data. Two new species are herein recognized and described: H. (D.

Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin.

The Triassic was a crucial period for the early evolution and diversification of insects, including Coleoptera-the most diverse order of organisms on Earth. The study of Triassic beetles, however, relies almost exclusively on flattened fossils with limited character preservation. Using synchrotron microtomography, we investigated a fragmentary Upper Triassic coprolite, which contains a rich record of 3D-preserved minute beetle remains of Triamyxa coprolithica gen.

Two new species of Megarthrus (Coleoptera, Staphylinidae, Proteininae) from Mexican Cloud Forests.

Two new species of Megarthrus are described from cloud forests of the Mexican state of Veracruz: M. cavianae Rodríguez, Navarrete-Heredia Arriaga-Varela sp. nov.

On Neotropical Merophysiinae with descriptions of a new genus and new species (Coleoptera, Endomychidae).

Intensive survey of museum collections and new field collecting resulted in discovery of six new, closely related species of the Neotropical Merophysiinae. A new species of the genus Champion, ., from Bolivia and Brazil, and five new species from Mexico for which a new genus is proposed here as .

A review of the Leach (Coleoptera, Hydrophilidae, Sphaeridiinae) of the Greater Antilles.

The representatives of the genus Leach occurring in the Greater Antilles are reviewed. Ten species are recorded, of which five are described here as new: (Dominican Republic), (Dominican Republic), (Dominican Republic), (Jamaica) and (Dominican Republic). Diagnoses and detailed distributional data are also provided for Horn, 1890 (distributed in southeastern United States of America and Cayman Islands), Chevrolat, 1863 (endemic to the Antilles) (Say, 1825) (widely distributed in the New World incl.

Hylaperdina squamosa, a new species of Neotropical Lycoperdininae (Coleoptera, Endomychidae) from Brazil.

Endomychidae or Handsome Fungus Beetles are a moderately large family of mycophagous beetles distributed worldwide but with the highest diversity in the tropics (Shockley et al. 2009a, b). The concept of the family (e.

Electribius relictus, a new extant species of Artematopodidae (Coleoptera: Elateroidea) from Veracruz, Mexico.

Electribius relictus sp. nov. (Artematopodidae) is described from a cloud forest fragment in central Veracruz, Mexico.

Preliminary review of the genus Stenotarsus Perty (Coleoptera: Endomychidae) from México, Guatemala and Belize, with descriptions of twelve new species.

A preliminary review of the species of Stenotarsus Perty from México, Guatemala and Belize is presented. Twenty-seven species are recorded from the region including 12 new species described here: Stenotarsus cortesi sp. nov.