acinose

Among the Doryctinae, the genus Heredius is distinguished by the coriaceous or acinose frons and vertex (Marsh, 2002).

Head: face mostly acinose with central area slightly swollen and rugose; frons acinose and carinate near toruli, vertex and temple acinose (Figure 2); oral opening small, diameter about 0.7 times the malar space; malar space 0.56 times eye height (Figure 3); frons slightly excavated; occipital carina meeting hypostomal carina; ocello-ocular distance about 4.0 times diameter of the lateral ocellus (Figure 4); 32 antennomeres.