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The genus    Cavariella    is distinguished from other   Macrosiphini   genera (  Aphididae  ,   Aphidinae  ) because it has a supra-caudal process on abdominal tergite VIII which possesses two setae distally. It is Holarctic in distribution, and half of its species are Asian. The Chinese fauna of this genus, 17 species, have been restudied, morphologically and through DNA barcodes. As a result:    Cavariella   hidaensis    Takahashi is transferred to    Elatobium   ;    Cavariella   sculptura    Qiao &amp; Xu,  sp. nov.  is described from specimens collected on    Torilis    and    Cryptotaenia    (  Apiaceae  );    Cavariella   cessana    Zhang, Chen, Zhong &amp; Li,  syn. nov.  and    Cavariella   largispiracula    Zhang, Chen, Zhong &amp; Li,  syn. nov.  are respectively junior synonyms of    Cavariella   aquatica    (Gillette &amp; Bragg) and    Cavariella   sapporoensis    Takahashi;    Cavariella   gilgiana    Zhang, Chen, Zhong &amp; Li and    Cavariella   lhasana    Zhang are confirmed as valid species and complete descriptions are provided;    Cavariella   bhutanensis    Chakrabarti &amp; Das,    Cavariella   nigra    Basu,    Cavariella   pastinacae    (Linnaeus), and    Cavariella   pustula    Essig are recorded for the first time from China. Additionally, keys for species of    Cavariella    known in China are provided and modifications to the key by Blackman and Eastop of aphid species on    Angelica    (Aphids on World’s Plants) are presented.

﻿ Cavariella Del Guercio ( Hemiptera , Aphidinae , Macrosiphini ) in China, with a new species, new synonymies, and first country records

Cavariella Del Guercio ( Hemiptera , Aphidinae , Macrosiphini ) in China, with a new species, new synonymies, and first country records