General morphology of Callistomorphus: 1 C. farinosus Perr., head and rostrum, dorsal view 2 C. malleus sp. n., head and rostrum ventral view 3 C. fundatus sp. n., ventral view of eye with magnification of setae between ommatidia (a C. fundatus sp. n., b C. gibbus sp. n.) 4 C. farinosus Perr., apical part of rostrum with antennal insertion, dorsal view 5 C. turbidus sp. n., mouth parts 6 C. gibbus sp. n., head and pronotum, frontodorsal view; a medial tubercles on pronotum, b thickened front “wall” of pronotum (greened) 7 C. rutai sp. n., fore coxae 8 C. gibbus sp. n., hind femur, dorsal view 9 C. fundatus sp. n., abdomen a C. torosus sp. n. b C. fundatus sp. n., apical setae on last ventrite 10 C. malleus sp. n., hind leg, lateral view 11 C. turbidus sp. n., hind tarsus 12 C. rutai sp. n., tarsal claws.