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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 wing retaining setae vertex vein valve tibia testes tergite tarsus sternite spinasternum spine

SPINE (Spinula): Median process in some species on the anterior margin of the endofurca on the meso- or/and metathorax.
 character state
SPINASTERNUM: An intersegmental sclerite of the thoracic sterna bearing a spina.
STERNITE: Ventral sclerite of the abdomen.
TARSUS: The leg segment distal to the tibia, comprising 1 or 2 tarsomer segments, apically bearing the pretarsal bladder.
TERGITE: Dorsal sclerite of an abdominal segment.
TESTES: 2 containers produce spermatozoa within tubular follicles.
TIBIA: Leg segment between femur and tarsus.
VALVE: Gonapophysis, forming one of two paired blad- and saw-like structures supporting the oviposition procedure.
VEIN: Terebrantia have 3 longitudinal veins in the forewings, the costa along the front margin, and the first and second vein.
VERTEX: Top of the head between compound eyes, frons and occiput.
WING RETAINING SETAE: S-shaped setae on the tergites mainly of Phlaeothripidae. These setae enmesh with the marginal cilia on the wings when the wings are not in use.
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.