Aparaglossata is a clade of

insects Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of j ...

comprising all modern

holometabolous Holometabolism, also called complete metamorphosis, is a form of insect development which includes four life stages: egg, larva, pupa, and imago (or adult). Holometabolism is a synapomorphic trait of all insects in the superorder Endopterygota. ...

insects except for Hymenoptera. The clade is named for one of its most recognizable synapomorphies, the absence of paraglossae. The clade is also characterized by a modification of the ovipositor and a reduction in number of

Malpighian tubules The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids and tardigrades. The system consists of branching tubules extending from the alimentary canal that absorbs solutes, water ...

. The larval groundplan of Aparaglossata was prognathous, had well-developed

stemmata A simple eye (sometimes called a pigment pit) refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. In this sense "simple eye" is distinct from a multi-l ...

, and an H-shaped tentorium.

Phylogeny

Phylogeny of Aparaglossata

References

Insect taxa Protostome unranked clades {{insect-stub