A new species of Abacarus (Acari: Prostigmata: Eriophyidae) damaging sugarcane, Sacharrum officinarum L., from Costa Rica — the first eriophyoid mite described with a tibial seta on leg II Author Navia, Denise Author Flechtmann, Carlos H. W. Author Lindquist, Evert E. Author Aguilar, Hugo text Zootaxa 2011 3025 51 58 journal article 46352 10.5281/zenodo.278697 fbd7bc7e-56bb-43b4-abb6-16f3e1451228 1175-5326 278697 Key to adult females in the genus Abacarus Keifer from sugarcane, Saccharum spp. 1. Tibia of leg II with a seta; seta sc (6–8 µm) reaching at most to 3rd dorsal annulus; epigynum with two rows of transverse lines basally............................................................................ Abacarus doctus n. sp. - Tibia of leg II without a seta; seta sc longer, reaching at least to 4th dorsal annulus; epigynum with longitudinal lines and/or basal rows of microtubercles............................................................................ 2 2. Prodorsal shield with median line complete, sparsely granular................... Abacarus delhiensis ChannaBasavanna - Prodorsal shield without or short median line, smooth......................................................... 3 3. Scapular seta s c (11–15 µm) reaching 4th dorsal annulus; empodium 6-rayed.......................................................................................... Abacarus queenslandiensis Ozman-Sullivan, Amrine & Walter - Scapular seta s c (18 µm) extending beyond 7th dorsal annulus; empodium 7-rayed.... Abacarus sacchari ChannaBasavanna