Notes on the genus Allotrichosiphum (Hemiptera: Aphididae: Greenideinae), with the description of one new species from Hong Kong, China Author Qiao, Gexia Author Jiang, Liyun Author Martin, Jon H. text Zootaxa 2006 1225 57 68 journal article 10.5281/zenodo.172659 bea40a81-12ec-4d8d-a4ed-7ec5b188c435 1175­5326 172659 Allotrichosiphum Takahashi Allotrichosiphum Takahashi, 1962 : 70 . Type species Trichosiphum kashicola Kurisaki, 1920 , by original designation. Allotrichosiphum Takahashi : Raychaudhuri, Ghosh, Banerjee & Ghosh, 1973 : 54 ; Ghosh & Agarwala, 1993 : 61 ; Qiao, 2000 : 307 . Type species. Trichosiphum kashicola Kurisaki, 1920 , by original designation. Diagnosis Body narrow, not strongly sclerotized, pale, without spinules on lateral areas of venter of abdomen. Dorsal setae not numerous, distinctly capitate or multi­forked, spatulate, and somewhat dilated at tip. Median frontal tubercle distinct. Antennae much shorter than body, 5 or 6 segmented, with some long capitate setae; processus terminalis as long as, or a little longer than basal part of last segment. Siphunculi very long, slender, not reticulated, with spinules on apical and basal parts and many long setae. Cauda rounded at apex. Abdominal segments III–VI fused together. Hind tibiae with spinules scattered on distal part, without ridges. First tarsal segment chaetotaxy: 7, 7, 7. Distribution China , Japan and India .