Glyphochaitophorus, a new genus of Chaitophorini (Hemiptera: Aphididae: Chaitophorinae) from China

The Chaitophorini is a tribe of the aphid family Aphididae (subfamily Chaitophorinae) comprising 7 genera and 154 species (Favret, 2020), and mainly distributed in Eurasia and North America (Blackman and Eastop, 2020). Chaitophorini species are primarily associated with Populus and Salix (Salicaceae), Acer (Aceraceae), Aesculus (Hippocastanaceae), and Koelreuteria (Sapindaceae). They are distinguished by the following morphological characters: body dorsal setae well-developed with pointed, bifurcate, blunt or expanded apices, and sometimes with distinctly tuberculate bases; siphunculi truncated, with reticulations, or with smooth or spinulose striae; cauda short, knob-shaped or slightly constricted at base, or semi-circular; anal plate entire, rounded at apex; first tarsal segments with 5-7 setae. In China there are species of six genera of Chaitophorini: Chaitogenophorus Zhang, Qiao & Chen, 1999, Chai