Milkweed Beetle. The milkweed beetle is a beautiful dark cobalt blue in colour. Hartman 1977 though an isolated population in a disturbed site in illinois was reported on a.
Milkweed asclepias spp esp. Costa rica represents this insect s southern limit. It is distributed throughout north america it ranges from central america through mexico and the caribbean to southern areas in canada.
Costa rica represents this insect s southern limit.
The red milkweed beetle tetraopes tetrophthalmus specializes in eating milkweeds. Verticillata where the adults may suffer reduced fitness price willson 1976. The antennal base actually bisects the eye. Tetraopes tetrophthalmus feeds on asclepias syriaca throughout its range farrell 1991.