Apocrita
Also known as aculeates
Apocrita is a suborder of insects in the order Hymenoptera. It includes wasps, bees, and ants, and consists of many families. It contains the most advanced hymenopterans and is distinguished from Symphyta by the narrow "waist" (petiole) formed between the first two segments of the actual abdomen; the first abdominal segment is fused to the thorax, and is called the propodeum. Therefore, it is general practice, when discussing the body of an apocritan in a technical sense, to refer to the mesosoma and metasoma (or gaster) rather than the "thorax" and "abdomen", respectively. The evolution of a
AI overview
Apocrita is a major suborder of insects that includes wasps, bees, and ants, distinguished by a characteristic narrow "waist" connecting their body segments. This group represents the most advanced hymenopterans and contains many families that play important ecological roles as pollinators, predators, and social insects.
AI-generated from the Wikipedia summary — may contain errors.
Species
midjesteklar
Suborder
- PhylumArthropoda
- ClassInsecta
- OrderHymenoptera
细腰亚目（学名：Apocrita）是膜翅目中最重要的亚目，包括许多科，相对而言广腰亚目的种类要少得多。这两个目的昆虫大多有透明的翅膀，细腰亚目的昆虫的第1和第2腹环(abdominal ring)之间有一个非常细的部位。这个蜂腰使得细腰亚目的昆虫的腹部非常灵活。
via
Wikidata facts
- Image
- Plectroctena sp ants.jpg
Sources (2)
via Wikidata · CC0
Article
3 sectionsContents
- Extant families and superfamilies
- References
- External links
Apocrita is a suborder of insects in the order Hymenoptera. It includes wasps, bees, and ants, and consists of many families. It contains the most advanced hymenopterans and is distinguished from Symphyta by the narrow "waist" (petiole) formed between the first two segments of the actual abdomen; the first abdominal segment is fused to the thorax, and is called the propodeum. Therefore, it is general practice, when discussing the body of an apocritan in a technical sense, to refer to the mesosoma and metasoma (or gaster) rather than the "thorax" and "abdomen", respectively. The evolution of a constricted waist was an important adaption for the parasitoid lifestyle of the ancestral apocritan, allowing more maneuverability of the female's ovipositor. The ovipositor either extends freely or is retracted, and may be developed into a stinger for both defense and paralyzing prey. Larvae are legless and blind, and either feed inside a host (plant or animal) or in a nest cell provisioned by their mothers.
Apocrita has historically been split into two groups, Parasitica and Aculeata. Aculeata is a clade whose name is in standard use. "Parasitica" is not a clade, as it is paraphyletic: the clade would contain the Aculeata. "Parasitica" is therefore a rankless grouping in many present classifications, if it appears at all.