A

Anterior scutellum:

The anterior, sensory part of the scutellum, separated from the posterior part by a transverse line about level with or well behind the hind margins of the axilla, and usually distinguished by slightly different sculpture

Axilla:

The triangular region lateral to the scutellum

C

Clava:

The enlarged apical joints of a clubbed antenna

D

Denticle:

Tooth-like projection on the surface of the flagellum from which the setae arise

F

Flagellum:

The antenna beyond the pedicel

Funicle:

The antennal articles between the pedicel and club

H

Hypopygium:

The last or posteriormost metasomal sternum

M

Macrochaeta:

The two long, stout, setae on the dorsal surface of the marginal vein - the basal seta is the 'proximal macrochaeta' and the apical seta, at the junction of the marginal and stigma veins, is the 'distal macrochaeta'.

Marginal cilia:

The fringe of setae around the fore and hind wing blades, in the same plane as the blades

Marginal vein:

The fore wing vein extending from the dechitinized area at the apex of the submarginal vein to the distal macrochaeta

Mesosoma:

Thorax + propodeum combined

Metanotum:

The sclerite immediately behind scutellum, usually a very narrow band and often partly fused with propodeum

Metasoma:

All the segments behind the propodeum, starting with and including the petiole

Microchaeta:

The setae on the margin or surfaces of the marginal vein, mostly between the macrochaetae, shorter and finer than the macrochaetae, and lack sockets

O

Occipital suture:

A transverse suture across the occiput between the postfrontal suture and occipital foramen

Ocellus:

One of the three bead-like lenses usually arranged in a triangle near the dorsal surface of the head (plural: ocelli), also known as a simple eye

P

Petiole:

The first segment of the metasoma which connects the mesosoma and the gaster, either constricted or broad and band-like

Phragma:

An internal sclerotised band projecting back towards the gaster from the anterolateral part of the metanotum

Posterior scutellum:

The non-sensory posterior half of the scutellum, separated from the anterior part by a transverse line and usually distinguishable by slightly different sculpture

Propodeum:

The posteriormost section of the mesosoma fused to the thorax, constitutes the first true abdominal segment

S

Scape:

First joint of antenna

Stemmaticum:

A median region on top of the head that bears the ocelli, usually encompassed by grooves; also known as the ocellar area

Sternum:

The middle portion of the under surface of thorax, between the coxal cavities

Stigmal vein:

The fore wing vein extending from the distal macrochaeta to the apex of the group of four placoid sensilla

Submarginal vein:

The forwe wing vein just behind the anterior margin of the wing extending from the apex of the humeral plate to the desclerotized area at the base of the marginal vein