4-H CLUB INSECT MANUAL oF, 
shown here is Brachymeria ovata, which lives as a parasite inside the 
pupae of various moths. It is about three-sixteenths of an inch long. 
It overwinters possibly as an adult, or perhaps within its host as a 
full-grown larva. Some species of. chalcids, however, live in seeds. 
These may be controlled by cultural practices. 
Sawflies.—In the order Hymenoptera 
is another group of insects, the sawflies, 
whose larvae very much resemble cater- 
pillars. Adult sawflies rest with their 
wings folded flatwise over their backs. 
The adult shown here is about three- 
elghths of an inch long. The wings 
have been spread to show the structure. 
This is the imported currant worm 
(Pteronidea ribesii). The larva chews 
holes in the leaves of currants and 
gooseberries. It has complete life changes and overwinters as either 
a full-grown larva or a pupa in a silken case in trash on the ground 
near where the larva feeds. It can be controlled with any good 
stomach poison. 
FIGURE 93.—Sawfly. 
MISCELLANEOUS GROUPS 
Lacewings.—Very few clusters of aphids 
or plant lice appear without the presence 
of small cream-colored lizardlike insects. 
These active little insects, which are the 
larvae of lacewing flies, have long, sickle- 
shaped jaws in addition to antennae, or 
feelers. The parent as pictured here is pale 
green in color; some species have black and 
red markings ‘about the head. This insect 
is approximately half an inch long. It has chewing mouth parts, 
four lacelike wings, and can either crawl or fly. The larvae have a 
combination of chewing and sucking mouth parts; that is, the sickle- 
like projections referred to earlier are hollow, and after the larvae 
have pierced the bodies of weaker insects they suck the body fluids 
of their prey through the hollow, hooked mouth parts. Lacewing 
flies have a complete metamorphosis. 
They belong to the order Neuroptera. 
The full-grown larvae or adults over- @ 
winter under bark, in fallen leaves, _ 
ete. These insects are beneficial in 
helping to control pests. The species 
shown here is Chrysopa oculata. 
Dragonflies—Every boy or girl 
who has wandered along a stream has 
seen the insect which in some sections 
is called a snake feeder, or snake Figure 95.—Dragonfiy. 
doctor, but as a matter of "fact it is a 
dragonfly and has no connection with snakes. The adults have four thin 
glossy wings, some with smaller or larger darker patches and numer- 
ous veins. The adults have chewing mouth parts and catch insects 
while in flight. The nymphs are carnivorous and live in water, where 
they feed on insects and other small aquatic animals. Dragonflies 
FIGURE 94.—Lacewing. 
