Humeralis: coleopteran; when the elytral has an angulated projecting margin at base.
A coleopteran struck me in the eye—one of the hydrophilidae family!
Heteromera: coleopteran in which the anterior and middle tarsi are 5- jointed and the posterior are 4-jointed.
Frontal ridge: in coleopteran; a sharp ridge on the dorsal margin of the eye, extending forward.
Intercoxal process: in coleopteran; a median protrusion of the basal segment of abdomen between the hind coxae.
Grub: an insect larva: a term loosely applied, but more specifically to larvae of coleopteran and Hymenoptera.