Belongs within: Coleopterida.Contains: Stylopiformia. The Strepsiptera are a group of insects that develop as endoparasites of other insects. Adult males are free-living and non-feeding; mature females are larviform and those of Stylopidia remain within the original host. Adult females of Mengenillidae remain free-living though they lack wings (Kathirithamby 1991). Within the Stylopidia, females of Corioxenidae… Continue reading Strepsiptera


Belongs within: Carabidae.Contains: Trechodini, Tasmanorites, Geocharis, Patrobini, Scaritinae, Trechinae, Brachininae, Harpalinae, Amblytelus, Mecyclothorax, Broscinae, Elaphrinae. The Conjunctae are a major clade of carabid ground beetles distinguished primarily by the presence of conjunct mesocoxae, with the coxal cavities surrounded by the mesosternum and metasternum. Members of this clade include the large subfamilies Harpalinae and Trechinae, though… Continue reading Conjunctae


Belongs within: Coleoptera. The Archostemata are a distinctive group of wood-boring beetles with the labrum fused to the head capsule in adults, and a distinctive wing-tucking mechanism where the wing tips are rolled rather than folded under the elytra (Grimaldi & Engel 2005). The most widespread family in the modern fauna is the Cupedidae, members… Continue reading Archostemata


Belongs within: Larrini. Larropsis: letting your prey do the work for you Published 12 June 2024 Keen-eyed wanderers in sandier regions of North America may observe wasps of the family Crabronidae going about their business, visiting flowers and hunting prey with which to stock their nests. Among the members of this family unique to this… Continue reading Larropsis


Belongs within: Meloinae. American hitch-hikers Published 11 June 2024 One of the major sticking points in the classification of the Meloidae, the blister beetles, has been the question of what to make of the Tetraonycini. This distinctive assemblage of blister beetles is unique to the Americas, and exhibits a number of features that stand out… Continue reading Tetraonycini


Belongs within: Lycosinae. High on the Hogna Published 5 June 2024 Because of their wandering habits, larger species of the wolf spider family Lycosidae are among the more commonly encountered large spiders in many parts of the world. Among the largest of all lycosids are some of the species assigned to the genus Hogna. As… Continue reading Hogna


Belongs within: Elateroidea.Contains: Physodactylinae, Agrypninae, Denticollinae, Elaterinae, Thylacosterninae, Lissominae, Cardiophorinae, Negastriinae. The Elateridae are the click beetles, so called for their ability to jump by rapidly bending the thorax (producing a clicking noise). This clicking ability is enabled by a long prosternal process entering a cavity on the mesosternum, causing a build-up of potential energy… Continue reading Elateridae


Belongs within: Bostrichoidea.Contains: Bostrichinae. The Bostrichidae are a group of beetles whose larvae are mostly borers in dead or dry wood. Many have a hooded, denticulate pronotum and/or straight antennae with free club segments. Gular sutures are confluent in members of the subfamilies Polycaoninae, Dinoderinae and Bostrichinae. Polycaoninae have a head that is easily visible… Continue reading Bostrichidae


Belongs within: Cleroidea.Contains: Lemidia, Stigmatium, Eleale, Hydnocerinae, Enopliinae, Epiphloeinae, Clerinae, Necrobia. The Cleridae, checkered beetles, are a family of elongate, hairy beetles, some if which are brightly coloured. Most clerids are predatory on other insects both as adults and larvae. Members of the family have five-segmented tarsi but the fourth tarsomere is concealed within the… Continue reading Cleridae


Belongs within: Falconidae. The Polyborinae includes the caracaras of South and southern North America. Caracaras are relatively long-legged falcons that often feed as scavengers. They have more or less extensive areas of bare reddish skin on the face around the base of the bill. The concerns of caracaras Published 20 May 2024 Falcons are typically… Continue reading Polyborinae