title: CLSM anatomy of internal genitalia of Mackiella reclinata n. sp. and systematic remarks on eriophyoid mites from the tribe Mackiellini Keifer, 1946 (Eriophyoidea: Phytoptidae).
abstract: A new mackielline mite, Mackiella reclinata n. sp., from a South African indigenous palm-tree, Phoenix reclinata, is described in detail using different microscopy techniques. A CSLM study of M. reclinata n. sp. internal genitalia shows that mites of this genus possess teardrop shaped spermathecae, sausage-like spermathecal tubes directed anteriad and a subtrapezoidal anterior genital apodeme with a peculiar apical plate, orthogonal to the anterior-posterior body axis. Pairwise angles between the spermatheca, spermathecal tube and the longitudinal bridge of M. reclinata n. sp. females were measured. The angle between the spermathecal tube and longitudinal bridge is a quite stable morphometric character and thus is considered to be appropriate for comparison of different eriophyoid taxa. LTSEM and CLSM study shows that M. reclinata n. sp. possesses a unique, broadened frontal lobe of the prodorsal shield comprised of apical and basal parts entirely covering the dorsal palpcoxae. The incompletely described mite species Mackiella borasis Mohanasundaram, 1981 does not conform to the diagnosis of Mackiella and herein is transferred to the subfamily Phytoptinae incertae sedis.
authors.affiliation: Department of Invertebrate Zoology, Saint-Petersburg State University, Universitetskaya nab., 7/9, 199034, St. Petersburg, Russia Zoological Institute, Russian Academy of Sciences, Universitetskaya Embankment 1, 199034 St. Petersburg, Russia; Email: p.chetverikov@bio.spbu.ru.
authors.forename: Philipp E
authors.initials: PE
authors.lastname: Chetverikov
authors.affiliation: ARC-Plant Protection Research Institute, P/Bag X134, Pretoria Queenswood, 0121 South Africa; Email: unknown.
authors.forename: Charnie
authors.initials: C
authors.lastname: Craemer
authors.affiliation: Department of Invertebrate Zoology, Saint-Petersburg State University, Universitetskaya nab., 7/9, 199034, St. Petersburg, Russia; Email: unknown.
authors.forename: Andrey E
authors.initials: AE
authors.lastname: Vishnyakov
authors.affiliation: Department of Invertebrate Zoology, Saint-Petersburg State University, Universitetskaya nab., 7/9, 199034, St. Petersburg, Russia; Email: unknown.
authors.forename: Sogdiana I
authors.initials: SI
authors.lastname: Sukhareva
mesh_terms: D063147:Animal Distribution; D000818:Animals; D049628:Body Size; D017753:Ecosystem; D005260:Female; D005835:Genitalia / Q000033:anatomy & histology / Q000254:growth & development; D008297:Male; D008925:Mites / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size