Blue-beetle
Guides
Altica bimarginata
willow flea beetle
Altica bimarginata is a small, shiny blue flea beetle in the family Chrysomelidae, commonly known as the willow flea beetle. It measures 5–6 mm in length and 2–3 mm in width. The species is distributed across North America and Central America and is frequently associated with willow plants (Salix genus). Three subspecies are recognized: A. b. bimarginata, A. b. labradorensis, and A. b. plicipennis. A neotype was designated for this species due to the loss of the original type specimen.
Azya orbigera
globe-marked lady beetle
Azya orbigera, commonly known as the globe-marked lady beetle, is a small lady beetle species in the family Coccinellidae. It is distinguished by its unusual cobalt blue coloration and dense dorsal pubescence, which contrast sharply with the typical red-and-black pattern of most lady beetles. Adults measure 2.90–4.25 mm in length and possess a yellow head with greenish-black dorsum and a characteristic round discal spot on each elytron. The species has a broad distribution across North America, Oceania, and South America, with two recognized subspecies.
Oxacis caerulea
Oxacis caerulea is a species of beetle in the family Oedemeridae (false blister beetles). The specific epithet 'caerulea' suggests blue coloration, a trait found in some related Oedemeridae species. The genus Oxacis is distributed in the Americas, with most species occurring in Central and South America. Very few observations of this species have been recorded.