A revision of the Heatherellidae (Parasitiformes: Mesostigmata) with a new genus and two new species from Australasia Author Seeman, Owen D. Author Minor, Maria Author Baker, Michelle R. Author Walter, David Evans text Zootaxa 2018 2018-06-18 4434 3 441 465 journal article 29875 10.11646/zootaxa.4434.3.3 3ebb3cb7-3b8f-4c4d-8858-d37185292c28 1175-5326 1292189 8B95D692-E8F7-402B-8485-3D3AE20111E8 Key to genera and species of Heatherellidae (adults) 1. Peritremes absent ( Figs 1 , 36 ); female with setae st3–4 on common shield or st 3 in soft cuticle; dorsal shields sexually dimorphic: female ( Figs 2 , 15 ) with podonotal-mesonotal shield; males ( Fig. 13 ) with podonotal shield and three mesonotal shields (one medial, two lateral); female latinotal shield undivided; ventral seta JF3 reduced, on anal rim ( Fig. 1 ); male st5 on separate shield from st1–4 ( Fig. 12 ) ... Heatherella ................................................................. 2 - Peritremes present, short ( Figs 16 , 37 ); female with st3 and st4 on separate platelets; dorsal shields monomorphic: both sexes with podonotal-mesonotal shield ( Fig. 17 ); latinotal shield divided into podonotal and mesonotal regions; ventral seta JF3 normal, removed from anus ( Fig. 16 ); male st5 on intercoxal shield ( Fig. 24 )........................... Aheatherella mira 2. Dorsal setae somewhat thickened, barbed, without ciliate crests, dissimilar to marginal ( r -R ) setae ( Fig. 15 ); seta z2 absent; marginal setae duplicated (22 pairs); anterior opisthogastric setae simple; 8–9 pairs of submarginal protuberances (always lacking protuberance P -s6 , between s6 and S1 ); protuberance posterior to seta s5 a raised pustule, different from other protuberances............................................................................................. 3 - Dorsal setae bifurcate, with ciliate crests, similar to marginal ( r -R) setae ( Fig. 2 ); seta z2 present; marginal setae highly hypertrichous (> 24 pairs); opisthogastric setae all short, bulbous and barbed; ten pairs of submarginal protuberances (with protuberance P -s6 between s6 and S1 ); protuberance posterior to seta s5 not obviously different from other protuberances................................................................................................ Heatherella osleri 3. Adult sternal shield (bearing st2 ) rounded anteriorly in both sexes, without endopodal elements; dorsum lacking protuberance P -s4 between setae z4 and s4 ; seta z6 posterior to s6 , seta Z1 posterior to S1 ; seta z5 placed obliquely to seta j5 ; male with seta av1 on genu II unmodified............................................... Heatherella acanthocharis Walter, 1997 - Adult sternal shield (bearing st2 ) angular anterior corners in both sexes, endopodal elements fused to shield; dorsum with protuberance P -s4 ( Fig. 15 ); seta z6 anterior to s6 , seta Z1 anterior to S1 ; seta z5 almost transversely aligned with seta j5 ; male with seta av1 on genu II modified into small blunt spur........................... Heatherella callimaulos Walter, 1997