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Particular attention is given to key characters, because it is essential that they be interpreted correctly. You can use additional photographs within the key when you are unsure of the character state discussed in the text. A double click on the character state thumbnail opens the related character state photograph and the mouse cursor will surround the important specific character state.
Overview fore leg prosternum sternites metasternum abdomen metasternum head tergites I-II tergites tergite VIII wings fore wing distal head antennae head tergites pronotum tergite VIII meso- and metanotum fore wing fore leg sternites area of interest
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(antecosta-campaniform sensilla) -> (cilia-craspedum) -> (cross vein-furca) ->(gena-maxillary stylets) ->
(maxillary palps-ocellar setae) -> (ocellar triangle-posteroangular) -> (posteromarginal-setae) ->
(spine-wing retaining setae)

Overview setae sensillum campaniforme sense cone scapus pronotum probasisternum prementum postoccular setae postmentum posteromarginal

POSTEROMARGINAL: (Latin, posterior = latter) behind the midline, caudal, (Latin, margo = edge) narrow part of a surface within the edge, for example: posteromarginal setae = setae inserted on the posterior margin of a sclerite.
 character state
POSTMENTUM: Proximal part of the labium.
POSTOCCULAR SETAE: Setae arising just behind the compound eyes.
PREMENTUM: The distal end of the labium bearing labial palps, glossae and paraglossae.
PROBASISTERNUM (=FERNA): Pair of sclerites on the posterior half of the prosternum, in Phlaeothripids = Ferna, in Thripids previously referred to as probasisternum.
PRONOTUM: Dorsal region of the first thoracic segment.
SCAPUS: 1st segment of the antenna.
SENSE CONE: A circular opening with a bifurcated or single conic process covered by a membrane.
SENSILLUM CAMPANIFORME: A belly formed sense organ that lacks an external process.
SETAE: Hair-like processes with a basal articulation.
Gordh, G & Headrick, D (2001): A dictionary of Entomology. CABI Publishing, Oxon & New York, 1032 pp.
Gullan, PJ & Cranston, PS (1994): The Insects: An Outline of Entomology . Chapman and Hall, London. 491 pp.