2.2.1. Frischianus laticollis subgroup of F. laticollis species group

Diagnosis: Separated from F. rufulus subgroup (chapter 3.2.2.2.) as follows: Submedial labral denticles pointed, usually longer than pointed, rarely obtuse, sublateral labral denticles (Figs 10–12, 14). Abdominal sternite VIII of ♂ with medioposterior incision narrow (e.g. Figs 199– 205). Aedeagus (Figs 61–156) with apical lobe present and ventral process absent; apical lobe more or less, often strongly, shifted sinistrad and curved dextrad; endophallic sclerite variable in size and shape, small to enlarged with various modifications, with foramen indiscernible or moderately developed. Gonocoxal plate of ♀ (unknown in eight of 22 species included) with posterior margin widely, but moderately deeply emarginate (Figs 248–256, 258–262).

Classification: The Frischianus laticollis subgroup of the F. laticollis species group is widely distributed in Southeast Asia. It currently comprises 22 species, which can be assigned to four species lineages. They are diagnosed below and the species included described.