Species in the genus Toxonotus (Lacordaire, 1866) are described for the first time in Puerto Rico and its jurisdictions. Two new species are described, annotated with digital images, and added to a key to the genus: Toxonotus borboroulous n. sp. from Puerto Rico and Vieques Island and Toxonotus ochrothrixus n. sp. from Mona Island. These species belong to the family Anthribidae, commonly known as Fungus Weevils, which are a group of beetles with some species that feed on fungus. Specimens were described morphologically using comparisons to digitally imaged specimens and published records. Diagnostic characteristics were used to place both species into a new key for the entire genus Toxonotus. Supplemental habitus images and genitalia line drawings were edited digitally. Both new species were nearly identical to described Nearctic species and were differentiated by vestiture and color. Types are stored at the University of Puerto Rico Invertebrate Collection (UPRM INVCOL)....
Se describen por primera vez especies del género Toxonotus (Lacordaire, 1866) en Puerto Rico y sus jurisdicciones. Se describen dos especies nuevas, se anotan con imágenes digitales y se agregan a una clave del género: Toxonotus borboroulous n. sp. de Puerto Rico y la Isla Vieques y Toxonotus ochrothrixus n. sp. de la isla de Mona. Estas especies pertenecen a la familia Anthribidae, comúnmente conocidas como gorgojos del hongo, que son un grupo de escarabajos con especies que se alimentan de hongos. Las muestras se describieron morfológicamente mediante comparaciones con muestras obtenidas con imágenes digitales y registros publicados. Se utilizaron características de diagnóstico para colocar a ambas especies en una nueva clave para todo el género Toxonotus. Se editaron digitalmente imágenes suplementarias de habitus y dibujos de genitales. Ambas especies nuevas eran casi idénticas a las especies neárticas descritas y se diferenciaban por vestiduras y colores. Los tipos se almacenan en la Colección de Invertebrados de la Universidad de Puerto Rico (UPRM INVCOL)....

In this paper we describe the gut microbiome of the Puerto Rican keystone sea urchin Diadema antillarum. We also used next generation sequencing of the cytochrome b region to examine the phylogenetic relationships among ...

Invasive species have brought ecological and economical losses worldwide and are expected to increase with continuing globalization. Ecologically, invasive species pose threats to local fauna through competition and/or ...

The genus "Aristida" (Poaceae) is a varied and well-distributed group of grass within the subfamily Aristidoideae. In Puerto Rico, we count with an endemic species, "Aristida portoricensis", commonly known as "Pelos del ...

The ecology of land snails in Puerto Rico has been studied mainly in events associated with disturbances and in the northwest area of the island. Specifically, many ecological aspects, such as the diet of one of the largest ...

Mangroves are considered complex ecosystems that serve and protect coastlines in tropical environments. But these are constantly exposed to pollutants from motorboats and nearby industries with components such as motor ...

Mountains are model systems for understanding the mechanisms that underlie patterns of biodiversity and ecosystem function. This study disentangles the effects of climatic and edaphic properties on patterns of trait variation ...

Butterflies represent a model taxon in biodiversity and conservation studies; yet few studies have documented changes in butterfly abundance over time in tropical ecosystems, especially in Puerto Rico or the Caribbean where ...

Bacteriophages are ubiquitous viral particles found in most environments, such as oceans, rivers, and soil. This wide distribution makes phages one of the most abundant viral types on the planet. Bacteria are outnumbered ...

The island of Puerto Rico has approximately 1,200 rivers and streams that total 9,187 river kilometers in 46 major drainage basins. The flow of these bodies of fresh water is interrupted by approximately 335 artificial ...