Table 1 in The genus Saissetia (Hemiptera, Coccomorpha, Coccidae) in China, with description of a new species

Table 1. Morphological features that can be used to separate S. kunmingensis sp. nov. and S. coffeae. VTDs = ventral tubular ducts. Morphological featuresS. kunmingensis sp. nov.S. coffeaeType I VTDsPresent submarginally in a broad band around body, mediolaterally on posterior abdominal segmentsAbsentType II VTDsPresent submarginally and mediolaterally on posterior abdominal segments, sparse, few and discrete between 2 spiracular pore bands and headPresent on inner submarginal area around body and medial thorax (Tang 1991; Choi and Lee 2017)Type III VTDsPresent submarginally and inner submarginally on posterior abdominal segments, rarely present on submarginal area of headPresent on outer submarginal area around body (Tang 1991; Choi and Lee 2017)Type IV VTDsAbsentPresent on medial submarginal area around body (Tang 1991; Choi and Lee 2017)Distribution of VTDsDistributed irregularly, type I and type II ventral tubular ducts mixed mediolaterally on posterior abdominal segments, and in a broad band around body, type III ducts mixed with them submarginally on posterior abdominal segmentsDistributed regularly (Tang 1991; Choi and Lee 2017)Dorsal setaeThick and long, 20.1-28.9 μm long including basal socket, 14.2-21.0 μm long without a basal socketRather short, 6.0-9.0 μm long (Choi and Lee 2017)表1 可用于区分昆明链霉菌新种（*S. kunmingensis* sp. nov.）与咖啡链霉菌（*S. coffeae*）的形态特征。VTDs为腹管孔（ventral tubular ducts）。 形态特征：昆明链霉菌新种；咖啡链霉菌 I型腹管孔：于体周形成宽亚缘带，且在腹节后侧区中外侧分布；无 II型腹管孔：分布于腹节后侧区的亚缘区及中外侧，在2条气门孔带与头部之间呈稀疏、零散分布状态；分布于体周内侧亚缘区及胸部中区（Tang 1991; Choi and Lee 2017） III型腹管孔：分布于腹节后侧区的亚缘区及内侧亚缘区，头部亚缘区极少存在；分布于体周外侧亚缘区（Tang 1991; Choi and Lee 2017） IV型腹管孔：无；分布于体周内侧亚缘区（Tang 1991; Choi and Lee 2017） 腹管孔分布模式：分布不规则，I型与II型腹管孔在腹节后侧区中外侧及体周宽带上混合分布，III型管孔与它们在腹节后侧区亚缘区混合存在；分布规则（Tang 1991; Choi and Lee 2017） 背刚毛：粗壮修长，带基节窝时长20.1~28.9 μm，无基节窝时长14.2~21.0 μm；相对短小，长6.0~9.0 μm（Choi and Lee 2017）