Cedar Creek
Ecosystem Science Reserve


Insects of Cedar Creek

Order COLEOPTERA

Family COCCINELLIDAE

(Ladybird Beetles)

(Table of Species)

More than 30 species of Lady Bird Beetles (399 NA spp) have been collected at Cedar Creek. This family is predaceous on aphids and other soft-bodied insects and is familiar to everyone. They will be discussed by Tribe.

HYPERASPINI
Three genera and perhaps nine species have been collected. These include: Brachyacantha 2 spp (albifrons, ursina), Hyperaspis 6 spp (binotata, proba, 4-vittata, undulata, fimbriolata, dissoluta), and Hyperaspidius sp. Most are not very common. H. binotata and H. proba are encountered on foliage in woodlands; the remaining species are more routinely taken in old fields. H. undulatus and H. 4-vittata are the most common.

COCCINELLINI
This Tribe includes the most commonly encountered Coccinellids. Eleven genera and 18 species have been collected. Genera containing the most abundant species found in old fields are: Coccinella (4 spp--novemnotata, perplexa, septempunctata, transversoguttata) and Hippodamia (4 spp--convergens, glacialis, parenthesis, 13-punctata). Of these C. septempunctata and H. parenthesis are the most abundant. Cycloneda munda is also fairly common in old fields.The two most common species of woodland are Anisosticta bitriangularis and Psyllobora 20-maculata. Coleomegilla maculata? is common in marshy environs.

The remaining species are less frequently collected. They include: Adalia bipunctata, the 2-spotted ladybird, collected primarily in the fall when it is searching for hibernation sites; Anatis15-punctata and A. ocellata are large species of woodland; Calvia 14-guttata a rare? species of cedar swamp; Cleis picta and Neomysia pullata? occur on pines.

Harmonia axyridis, the Multicolored Asian Lady Beetle, was noted in western Wisconsin in 1998, and during the past two years it has become exceedingly abundant around Cedar Creek and Minnesota homes in the fall while seeking hibernation sites.

CHILOCHORINI
This Tribe is represented by Chilocorus bivulnerus, an uncommon black species with red spot on each elytra, found in woodland.

SCYMNINI

This Tribe of small dark hairy coccinellids occurs in woodland. Perhaps five species in the genus Scymnus have been collected.


webmaster@cedarcreek.umn.edu Last updated May, 2000