Genomic-resource
Guides
Hetaerina americana
American rubyspot
A damselfly species in the family Calopterygidae, commonly known as the American rubyspot. Males exhibit a lustrous red head and thorax with a brilliant green abdomen; females have a green abdomen with either green or copper thoracic markings. The species occupies riverine habitats in arid and semi-arid regions and demonstrates strong site fidelity, with adults rarely dispersing more than 100 meters from emergence sites. Research indicates sensitivity to urbanization, with documented declines in abundance, body condition, and reproductive success correlated with reduced riparian vegetation and increased wastewater discharge.
Petrolisthes
porcelain crabs
Petrolisthes is a genus of marine porcelain crabs in the family Porcellanidae, containing approximately 50 extant species distributed across temperate and tropical coastal regions of the Pacific Rim and warm Western Atlantic. These small, flattened crabs occupy intertidal and subtidal zones, often forming dense aggregations under rocks and within crevices. Multiple species have been subject to intensive behavioral and ecological study, revealing complex patterns of intraspecific competition, thermal adaptation, and settlement behavior. Two species (P. cinctipes and P. manimaculis) have been sequenced, providing genomic resources for studying physiological responses to climate change.