Table 1 in The ' red-tailed' Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic

Table 1. Morphometric measurements used in species descriptions and their definitions. Type ‘T’ characters are quantitative and were used in all analyses; type ‘L’ characters are qualitative and were only used in PAM clustering with Gower distance matrix.
MeasurementTypeDefinitionIntertegular distanceTMinimum distance between tegulae.Face length/width ratioTDistance from lower edge of median ocellus to apicalmargin of clypeus including flange, divided by maximumwidth of head including eyes.Clypeal area length/width ratioTLength of clypeus including apical flange (measured in center), divided by lower interocular distance.Supraclypeal area length/width ratioTClypeoantennal distance divided by distance between tentorial pits.F1:pedicel length ratioTMaximum length of F1 divided by maximum length of pedicel.F2:F1 length ratioTMaximum length of F2 divided by maximum length of F1.F2 length/width ratioTMaximum length divided by maximum width of F2.F9 length/width ratio.TMaximum length divided by maximum width of F9.Scutum length/width ratioTMaximum length of scutum divided by intertegulardistance.Scutum:scutellum length ratioTMaximum length of scutum divided by maximum lengthof scutellum.Scutellum:metanotum length ratioTMaximum length of scutellum divided by maximum lengthof metanotum.Metanotum:metapostnotum lengthTMaximum length of metanotum divided by maximumratiolength of metapostnotum in dorsal view. (For species withthe metapostnotum gently rounded onto the posterior faceof the propodeum, the end point was estimated as the pointat which the propodeum drops out of focus.)Frons puncture densityLCrowded (i= 0 pd), dense (i <1 pd), or sparse (i ± 1 pd).Frons puncture sizeLNormal (deep and distinct) or fine (not much bigger than diameter of hair).Frons surface sculptureLShiny or dull.Mesepisternum puncture densityLCrowded (i=0 pd), dense (i <1 pd), sparse (i ± 1 pd), crowded dorsally and dense ventrally, or dense dorsally and sparse ventrally.Mesepisternum puncture sizeLNormal (deep and distinct), fine (not much bigger than diameter of hair), obscure, or diversopunctate.Mesepisternum surface sculptureLSmooth and shiny, smooth and dull, or rugulose.Scutum puncture densityLDense (majority of punctures i <1 pd) or sparse (majority of punctures i ± 1 pd).Scutum surface sculptureLShiny, dull anteromedially, or completely dull.Propodeum lateral surface sculptureLSmooth and dull or rugulose.T1 anterior surface sculptureLShiny, weakly coriarious, or strongly coriarious.Metasoma tomentumLPresent/absent.Scutum hair plumosityLMostly thin and simple or mostly densely plumose.Number of submarginal cellsL2, 3, or 2 in one wing and 3 in the other.