Revision and phylogeny of the genus Andocaeculus (Acari: Caeculidae) I: the A. weyrauchi species group Author Porta, Andrés O. 0000-0002-9533-4139 hugporta@yahoo.com.ar Author Pizarro-Araya, Jaime 0000-0002-1595-6924 japizarro@userena.cl Author Ramírez, Martín J. 0000-0002-9533-4139 hugporta@yahoo.com.ar text Zootaxa 2021 2021-03-17 4945 1 1 78 journal article 7391 10.11646/zootaxa.4945.1.1 b8016461-1f19-4933-ba48-4cda6241c7a8 1175-5326 4614242 41A5A9DC-E193-4099-81D6-0619795ED0A3 Andocaeculus weyrauchi species group Diagnosis. Small to medium-sized Andocaeculu s presenting the following combination of characters: adults with palpal femur-genu with only two setae ( Figs. 14B , 15A , 29B , 30 , 36A , 47A ); only one Po seta, very long, observable in dorsal view from larval stage ( Figs. 4 , 5D , 6 , 16 , 19 , 20 , 21A, C , 32 , 33 , 34A, C , 35A , 48 , 49A , 50–52 ); setae a2 , Pa , Pm regressive; Pp absent ( Figs. 3 , 4 , 5A–C , 19 , 20 , 21 A–B , 32 , 33 , 34 A–C ), only one seta on series l’ on trochanter I ( Figs. 8A , 9A , 24A , 25A , 39A , 41A ), v’ of basifemur and telofemur of leg I pedunculated, not pointed and relatively short for genus, RBaf and RTef at most 0.75 ( Figs. 8A , 9B , 24A , 25B , 39A , 41B ); setae of series d of the leg segments regressive ( Figs. 6a–d , 8a–d , 10a–d , 12a–d ); only some distal setae of tarsi of legs I and II eupathidial: l1” , er’ and (st) ; claws ol ’ and ol” of each leg of remarkably different size ( Figs. 9G–J , 10G–H , 12E , 13F , 25H–I , 28E , 42C, G , 43E , 45C, E , 46E , 56 , 57F , 58D ); solenidia φ present on tibia IV of some species ( Figs. 13 B–C , 46F–G ), ω solenidia cavity simple, without internal constrictions ( Figs. 14A, C , 29A , 40 ).