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REMAINING (number with state)
Abdominal apex
Simple, without long filaments, jumping organ or forceps (26)
With 2 long filaments (10)
With a single long filament (6)
With 3 long filaments (4)
With hardened forceps (4)
With a forked jumping organ (1)
Abdominal base
Broadly attached to thorax (31)
Constricted to a narrow waist flexibly hinged to body (2)
Antennae
Segments filiform (27)
Segments moniliform (13)
Minute and bristle-like (5)
Absent (4)
Club-like or clavate (4)
Elbowed or geniculate (1)
Feather-like or plumose (1)
Large segment bearing a bristle or aristate (1)
Body regions
3 body regions (31)
Body segmentation not apparent (5)
Body shape
Not elongate, flattened or laterally compressed (27)
Long, elongate and stick-like (15)
Broad and flattened (8)
Laterally compressed (3)
Cerci
Absent (17)
Short with 1 or 2 segments (14)
Elongate with more than 2 segments (10)
Compound eyes
Separated (27)
Absent (15)
Meeting in midline dorsally (6)
Forelegs
Not modified for siezing prey (30)
Armed with stout spines and modified for seizing prey (6)
Foretarsi with basal segment swollen, containing silk glands (1)
Head shape
Normal, rounded (30)
Drawn into a beak with mouthparts at apex (7)
Bulbous regions between mouthparts and antennae (4)
Hind legs
Normal, not modified for jumping (30)
Enlarged, modified for jumping (4)
Mouthparts
External, with chewing mandibles (22)
Absent (9)
Present but hidden inside head capsule (8)
Forming a straight, cylindrical tube beneath head (4)
Forming a coiled, cylindrical tube beneath head (1)
Mandibles and tubular structure (1)
Palps
Present (29)
Absent (9)
Pretarsus
With claws (30)
With bladder-like swelling (2)
Pronotum shape
Short and not covering head or sides of prothorax (29)
Elongate, length at least 2 times width (6)
With lobes descending over sides of prothorax (5)
Completely or almost completely covering head (2)
Tarsomere number
5 (17)
2 (12)
3 (12)
4 (8)
1 (6)
Wing base
Normal, without fracture line (22)
With fracture line (6)
Wing development
Absent (25)
Well developed, functional (23)
Reduced to small pads that are not suitable for flight (14)
Wing number
4 (21)
Absent (20)
2, fore pair reduced to small clubs (7)
2, hind pair reduced to tiny clubs or absent (7)
Wing shape
Narrow, lacking a fringe of long hairs (21)
Broad, lacking a fringe of long hairs (20)
Narrow, with a fringe of long hairs (7)
Wing texture
Both pairs of wings membranous, of similar texture, covered in microscopic hairs (19)
Forewings leathery, hind wings transparent (10)
Forewings hard, opaque, forming close-fitting covers over abdomen (4)
Wing venation
With many veins and cross veins (20)
With few cross veins and often with fewer longitudinal veins (13)