A New Genus And Species Of Eriophyoid Mites (Acari: Eriophyoidea: Diptilomiopidae) On Phyllostachys Iridescens (Poaceae) From Hungary
Author
Ripka, Géza
Author
Kontschán, Jenő
Author
Neményi, András
text
Acta Zoologica Academiae Scientiarum Hungaricae
2015
2015-04-30
61
1
47
56
http://dx.doi.org/10.17109/azh.61.1.47.2015
journal article
10.17109/AZH.61.1.47.2015
2064-2474
Mucotergum
Ripkagen.
n.
Diagnosis. Rhyncaphytoptinemiteswithopisthosomaspindleformand withsubequal, microtuberculatedorsalandventralsemiannuli. Tubercles of scapular setae
sc
and setae
sc
absent; prodorsal shield with a short and roundedfrontallobe. Prodorsalshieldanddorsalsemiannulicoveredbymucus- likelayer. Gnathosomawithsetae
ep
and
d
present. CoxisternaeIandII, andlegsIandIIwithallusualsetae, includingbasiventralfemoralseta
bv
present. Femalegenitalianotappressedtocoxae, genitalcoverflapdivided intwoparts, withdifferentornamentation. Empodiumundivided. Caudal lobesnormalinsize, coneshapedandornamentedwithlongitudinalridges ventrallyandlaterally.
Type
species.
Mucotergum nigrum
Ripka
sp. n.
Etymology. Thegenericname,
Mucotergum
, isacontractionoftheLatin‘
mucus
’, meaningsecretion, mucusanddischarge, andLatin‘
tergum
’, back, shield, bodyandsur- face, whichrelatestotheexceptionallayeronthedorsalidiosoma. Thegenderisneuter.
Differentialdiagnosis. Thenewgenus
Mucotergum
issimilarto
Asetacus
Keifer. Itclearlydiffersfrom
Asetacus
mainlybyhavingallusualsetae, includingbasiventralfemoralseta
bv
onbothlegpairs, themucus- likecoveronthe prodorsalshieldanddorsalopisthosoma, theuncommonlydarkcolour, and lackoftuberclesofscapularsetae
sc
. Thesuiteofcharacteristicsusedtodifferentiate
Mucotergum
appeartobesignificantatgenericlevelbut, likesome othertaxaintheEriophyoidea, thegenericconceptsandseparationofseveral taxaassignedtosubfamilyRhyncaphytoptinaearethoughttobeweakand notbasedonnaturalgroupings (
LINdquIST & AMRINE 1996
). Sofar, onlytwo eriophyoidmitesareknown, whichproduceclearliquidsecretionontheir body:
Hoderusglobulus
(Mohanasundaram, 1981) and
Hyborhinuskallarensis
Mohanasundaram, 1986 (cit.
MANSON & GERSON 1996
). Bothdiptilomiopid speciesweredescribedfromIndia, andbothhavetuberclesofscapularsetae
sc
andsetae
sc
. Themucus- likesecretiononprodorsalshieldanddorsalsemi- annuliisanunusualfeatureineriophyoidmites.