Synonyms and other taxonomic changes
Hoplia debilis LeConte
Black with sparse white hairs. Similar to H. trifasciata
e. US south to GA and west to IL & TX(1)
on vegetation/flowers, young pines, hickories; under boards, rocks, near water
March-May, sometimes June, July (Carolinas).
Described for Hoplia callipyge: Larva is C-shaped grub, feeds on roots of forbs, grasses. Overwinters as late-stage larva. Pupates in soil in spring.
In Durham North Carolina, seen in spring (April) climbing stems of grasses (Broomsedge, Andropogon) in old field habitat, adjacent to mixed pine deciduous woods. These (males?) spread antennal plates and then flew off, perhaps searching for females.
Type specimen images for H. debilis (=trivialis)
from the Harvard MCZ (Museum of Comparative Zoology).