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Common Name: Satyr/Wood nymph
Order: Lepidoptera
Family: Satyridae
Pest Status: Satyrs are not considered pests. The caterpillars feed
on a range of grasses.
Appearance: Satyrs are small- to medium-sized butterflies,
usually brown or grayish in color. They usually have eyelike spots
on their wings.
Life Cycle: Eggs are laid during late summer, and after three or
four weeks the caterpillars emerge and begin to feed on grasses.
The young caterpillars overwinter, then pupate in early summer of
the following year. The chrysalis is attached to the grass blades.
Adults emerge in July.
Where to Collect: Satyr butterflies are typically found in living in
grassland or woodland environments. They may easily be collected
by netting them as they fly about shrubs and hedgerows.
Photo Credit: John Obermeyer, Purdue University
Common Name: Sawfly
Order: Hymenoptera
Family: Tenthredinidae
Photo Credit: John Obermeyer, Purdue University
Pest Status: Sawfly larvae can become very destructive as they
consume leaves or needles of trees and bushes.
Appearance: Sawfly larvae are often confused with caterpillars,
but sawfly adults are very wasp-like. They are distinguishable from
other wasps by the broad connection between the abdomen and
the thorax. Their common name comes from the appearance of the
ovipositor, which looks much like the blade of a saw.
Life Cycle: Sawflies overwinter as eggs. The larvae begin feeding
in late spring and continue through the summer. After feeding, the
larvae pupate in the soil or on trees and adults begin appearing in
the fall. There is one generation per year.
Where to Collect: Most sawflies are host-specific, so they can
be found near their individual hosts, (pines, evergreens, and some
deciduous trees).
Common Name: Sawtoothed grain beetle
Order: Coleoptera
Family: Silvanidae
Pest Status: Sawtoothed grain beetles are common pests of stored
cereal products, both commercial and in the home.
Appearance: These beetles are flattened, red-brown, and about
1
⁄10-inch long. The common name comes from the six sawtooth-like
projections on each side of the thorax. The sawtoothed grain beetle
has exposed eyes and the head is triangular in shape.
Life Cycle: Eggs are laid singly or in small groups in the food
material where the life cycle is completed. The eggs hatch in about
one week; the larvae mature within a month; and the pupae mature
in two months. Adults emerge in the spring and can live six to
ten months.
Where to Collect: The sawtoothed grain beetle can be found in
cereal-based products.
Photo Credit: John Obermeyer, Purdue Umiversity