TY - JOUR

T1 - New phytoptids (Eriophyoidea, Phytoptidae) from southern African endemic dicotyledons

T2 - Description of two new species of Solenocristus n. g. and updated key to world genera of the tribe Sierraphytoptini

AU - Chetverikov, Philipp E.

AU - Craemer, Charnie

AU - Neser, Stefan

AU - Zukoff, Sarah

N1 - Funding Information: The field survey to collect eriophyoid mites in the Eastern Cape and Western Cape provinces and part of the study were funded by the South African Department of Science and Technology and Agricultural Research Council in South Africa. We acknowledge the collecting permits provided to collect eriophyoid mites in the above areas, including the collecting permit provided by the Western Cape Nature Conservation Board. Funding Information: This study was partly supported by Russian Foundation for Basic research (16-04-01292) and research project of ZIN RAS (АААА-А17-117030310209-7) to the first author. LM investigation of the phytoptid mites was carried out using the equipment at the Development of Molecular and Cellular Technologies Resource Center at St. Petersburg State University, Russia (project 109-9164). LT-SEM studies were performed at the Laboratory for Microscopy and Microanalysis, University of Pretoria, South Africa. We thank Drs Chantelle and Eudri Venter for assistance with cryopreparation for LT-SEM. We thank Ms Tshidi Makutoane for slide-mounting some specimens. Publisher Copyright: © Systematic & Applied Acarology Society. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2018/7

Y1 - 2018/7

N2 - A new phytoptid genus and two new species, Solenocristus karooensis n. g. & n. sp. and S. searsius n. sp. (Phytoptidae, Sierraphytoptinae, Sierraphytoptini), were collected in the Eastern and Western Cape provinces of South Africa, from southern African endemic dicotyledonous trees Schotia afra (Fabaceae) and Searsia lucida (Anacardiaceae) respectively. They are described and illustrated with the aid of conventional light microscopy and low temperature scanning electron microscopy. Females of both new species possess a distinct pregenital plate divided into two parts by a subcuticular medial ridge. Additionally, in S. karooensis n. sp. the movable digit of the male chelicerae varies in length: among six observed males, three males had a movable digit (md) twice shorter than the fixed digit (fd), in one male it was slightly shorter than fd and in the remaining two males md and fd were of the same length. An updated key to the world genera of the tribe Sierraphytoptini is given. The key incorporates data on seven sierraphytoptine genera including three genera (Neoprothrix Reis & Navia, Solenoplatilobus Chetverikov & Craemer and Solenocristus n. g.) which were described since the last generic key of Eriophyoidea by Amrine et al. (2003) was published.

AB - A new phytoptid genus and two new species, Solenocristus karooensis n. g. & n. sp. and S. searsius n. sp. (Phytoptidae, Sierraphytoptinae, Sierraphytoptini), were collected in the Eastern and Western Cape provinces of South Africa, from southern African endemic dicotyledonous trees Schotia afra (Fabaceae) and Searsia lucida (Anacardiaceae) respectively. They are described and illustrated with the aid of conventional light microscopy and low temperature scanning electron microscopy. Females of both new species possess a distinct pregenital plate divided into two parts by a subcuticular medial ridge. Additionally, in S. karooensis n. sp. the movable digit of the male chelicerae varies in length: among six observed males, three males had a movable digit (md) twice shorter than the fixed digit (fd), in one male it was slightly shorter than fd and in the remaining two males md and fd were of the same length. An updated key to the world genera of the tribe Sierraphytoptini is given. The key incorporates data on seven sierraphytoptine genera including three genera (Neoprothrix Reis & Navia, Solenoplatilobus Chetverikov & Craemer and Solenocristus n. g.) which were described since the last generic key of Eriophyoidea by Amrine et al. (2003) was published.

KW - African endemics

KW - Eriophyoid mites

KW - Fixed digit

KW - LT-SEM

KW - Movable digi

KW - Schotia

KW - Searsia

UR - http://www.scopus.com/inward/record.url?scp=85049562527&partnerID=8YFLogxK

U2 - 10.11158/saa.23.7.7

DO - 10.11158/saa.23.7.7

M3 - Article

AN - SCOPUS:85049562527

VL - 23

SP - 1290

EP - 1312

JO - Systematic and Applied Acarology

JF - Systematic and Applied Acarology

SN - 1362-1971

IS - 7

ER -