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Table 1 Descriptors and descriptor codes used for IIKC

From: Development and validation of IIKC: an interactive identification key for Culicoides (Diptera: Ceratopogonidae) females from the Western Palaearctic region

Descriptors code
WING: Pale or dark spots - Presence W01
WING: 2nd rad cell, covered by pale spot, costal-tip part W02
WING: r5 and m1, pale spots, distal part - Presence W03
WING: r5 and m1, pale spots, distal part - Size W04
WING: r5 and m1, pale spots, distal part - Connection W05
WING: r5 and m1, pale spots distal part - Position W06
WING: m2, pale spot, distal part - Presence W07
WING: m1, pale spot, from proximal to median part - Presence W08
WING: m1, pale spot layer and cross the veins M1 and M2 - Presence W09
WING: m2, pale spot/area, from proximal to median part - Presence W10
WING: m2, pale spot over r-m cross vein fused with the m2 spot which layers and crosses vein M2 - Presence W11
WING: m, pale spot/area - Presence W12
WING: r5, 4th pale costal spot (p.c.s.) versus 3rd dark costal spot (d.c.s.) - Size W13
WING: r5, area of 4th p.c.s. bigger than 3rd d.c.s. - Shape of the 3rd d.c.s. W14
WING: anal cell, pale spot in distal part - Presence W15
WING: m4, center spot - Presence and Colour W16
WING: r-m crossvein, dark spot in the corner with M1 vein- Presence W17
WING: arculus, dark spot under arculus - Presence W18
WING: M1, pale spot/band spanning the vein - Presence W19
WING: M1, pale spot in the median part - Position W20
WING: M2, pale spot/band spanning the vein - Presence W21
WING: M1, M2 and M3 + 4, at least 1 pale spot/area, abuts wing margin, apex of veins in distal part - Presence W22
WING: M1, M2 and M3 + 4, pale spots surrounded by dark area, apex of veins - Shape W23
WING: M2, dark spot in proximal part - Shape W24
WING: Pale wing with only 2 dark areas on Cu1 and 2nd rad cell - Presence W25
WING: m and anal cells, macrotrichia abundance - Presence W26
WING: anal cell, dark area abuts wing margin - Presence W27
ABDOMEN: Spermathecae - Number A01
ABDOMEN: Spermathecae, sclerotized ring at the end of the spermathecal duct - Presence A02
ABDOMEN: Spermathecae, sclerotized ring at the end of the spermathecal duct - Shape A03
ABDOMEN: 1 or 2 spermathecae, pigmented neck - Presence A04
ABDOMEN: 1 Spermatheca - Shape A05
ABDOMEN: 1 spermatheca, curved shape - Presence A06
ABDOMEN: 1 spermatheca, spermathecal duct swollen - Presence A07
ABDOMEN: 1 spermatheca, spermathecal duct - Length A08
ABDOMEN: 2 spermathecae - Shape A09
ABDOMEN: Spermathecae, abdominal sclerites - Presence A10
ABDOMEN: Spermathecae, abdominal sclerites - Shape A11
ABDOMEN: 2 spermathecae - Size A12
ABDOMEN: 3 spermathecae - Shape A13
ABDOMEN: 3 spermathecae - Texture A14
EYES: interfacetal hairs - Presence H01
EYES: Inter-ocular space - Shape H02
MANDIBLE/MAXILLE: teeth - Presence H03
CIBARIAL ARMATURE: cibarial armature - Presence H04
PHARYNX POSTERIOR ARMATURE: pharynx posterior armature - Presence H05
PALPUS: 3rd palpal segment - Shape H06
PALPUS: 3rd palpal segment, sensory pits - Number H07
PALPUS: 3rd palpal segment, single sensory pit - Opening versus depth H08
ANTENNA: short segments - Shape H09
ANTENNA: sensilla coeloconica, short segments - Presence H10
ANTENNA: short sensilla trichodea, distal part segments IV to X - Number H11
ANTENNA: long sensilla trichodea, proximal segments III-X - Shape H12
ANTENNA: antennal XI/X ratio, length of segment XI divided by length of segment X - Range H13
ANTENNA: sensilla coeloconica, segments III to VI - Presence H14
ANTENNA: sensilla coeloconica, segments VII to X - Presence H15
ANTENNA: sensilla coeloconica, segments XI à XV - Presence H16
LEG: forelegs, spines on tarsal segments - Presence L01
LEG: middle legs, spines on tarsal segments - Presence L02
LEG: hind legs, spines on tarsal segments - Presence L03
GEOGRAPHICAL G01
  1. Concerning wing descriptors, the lower-case r and m referred to respectively radial and median cells and the upper-case M and Cu to the median and cubital nervures.