The
Brachycera
The Brachycera are a suborder of the order Diptera. It is a major suborder consisting of around 120 families. Their most distinguishing characteristic is reduced antenna segmentation.
Description
A summary of the main physical characteristic ...
n infraorder Asilomorpha is a large and diverse group of flies, containing the bulk of the non
muscoid Brachycera. The
larva
A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
Th ...
e of asilomorphs are extremely diverse in habits, as well.
Classification
In most modern classifications, the infraorder Asilomorpha is not recognized, as it is
paraphyletic
In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...
; the
Empidoidea are the
sister taxon
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree.
Definition
The expression is most easily illustrated by a cladogram:
Taxon A and ...
to the
Muscomorpha
The Brachyceran infraorder Muscomorpha is a large and diverse group of flies, containing the bulk of the Brachycera, and, most of the known flies. It includes a number of the most familiar flies, such as the housefly, the fruit fly, and the blo ...
(used here in the same sense as the traditional
Cyclorrhapha
Cyclorrhapha is an unranked taxon within the infraorder Muscomorpha. They are called "Cyclorrhapha" ('circular-seamed flies') with reference to the circular aperture through which the adult escapes the puparium. This is a circumscriptional name t ...
, not following the
Tree of Life Web Project
The Tree of Life Web Project is an Internet project providing information about the diversity and phylogeny of life on Earth.
This collaborative peer reviewed project began in 1995, and is written by biologists from around the world. The site ...
system in this one instance). However, these modern classifications are not Linnaean, and - while relatively easy to visualize on a phylogenetic tree diagram - do not lend themselves to any classification that uses Linnaean ranks (''see''
discussion
Conversation is interactive communication between two or more people. The development of conversational skills and etiquette is an important part of socialization. The development of conversational skills in a new language is a frequent focus ...
''for details''). Also, some classifications place the
Nemestrinoidea within the Tabanomorpha, though this is not widely accepted.
External links
The Tree of Life Web Project: Brachycera
Insect infraorders
{{Asilomorpha-stub