H. sandakanensis Zhang & Webb sp. nov. Figs. 1R, 8E–H Description. Body length (including tegmina), male: 5.3mm; female: 5.6mm. Colour as in H. brunnifacialis. Male genitalia similar to H. brunnifacialis but aedeagus with very long basal apodeme; shaft abruptly tapered subapically in lateral view with two pairs of closely appressed processes, gonopore arising subapically on ventral surface. Female pregenital sternite with posterior margin produced medially. Material examined. Holotype: ♂, Borneo, Sandakan, Baker (NMNH). Paratype: 1♀, same data as holotype (NMNH). Etymology. This species is named after the type locality. Remarks. This species can be distinguished from other H. quadripicta group species by the two pairs of closely appressed apical aedeagal processes.

Published as part of Xu, Deliang, Webb, Michael D., Shang, Suqin & Zhang, Yalin, 2021, Review of the Pacific leafhopper genus Hecaloidella (Hemiptera: Cicadellidae Deltocephalinae: Selenocephalini) with description of sixteen new species, pp. 381-403 in Zootaxa 4948 (3) on page 399, DOI: 10.11646/zootaxa.4948.3.4, http://zenodo.org/record/4629100