Lacewings

the South. Adults, less than 1 in., are predaceous. Larvae are parasitic in egg sacs of ground spiders.

PLEASING LACEWINGS Family Dilaridae Not illus.

Identification: Superficially resemble small moths, since wings are rather hairy and at rest are often held outspread. Antennae of & pectinate. 9 with an ovipositor as long as body. Costal cross veins not forked. FW more or less triangular and 3.0-5.5 mm.

Only 2 species occur in N. America, and they are quite rare.

GIANT LACEWINGS Family Polystoechotidae Not illus.

Identification: Wingspread 13^-2>2 in. Humeral vein in FW recurved and branched. 1st r-m cross vein in HW longitudinal.

Only 2 species of giant lacewings occur in N. America, and they are quite rare.

ITHONID LACEWINGS Family Ithonidae Not illus.

Identification: Similar to Polystoechotidae, but FW with Sc and Ri not fused distally and Rs with only a few branches, and 1st r-m in HW short and oblique.

A single very rare member of this group, Oliarces clara Banks, has been reported from s. California. It has a wingspread of about in.

BEADED LACEWINGS Family Berothidae Not illus.

Identification: Some costal cross veins forked. Vertex flattened. Outer margin of FW sometimes indented behind apex. Over 8-mm.

Berothids resemble caddisflies, and are often attracted to lights. The group is small, its members quite rare.

GREEN LACEWINGS Family Chrysopidae Identification: Wings usually greenish, eyes golden or copper-colored. FW with apparently 1 radial sector, Sc and Ri not fused at wing tip, and costal cross veins not forked.

Green lace wings are very common insects, found on grass, weeds, and shrubs, usually in relatively open areas. They often give off an unpleasant odor when handled. Adults and larvae feed principally on aphids and are important agents in the control of these insects. Eggs are laid at ends of tiny stalks, usually on foliage; the larvae, which have long sickle-shaped mandibles, pupate in small pea-shaped silken cocoons.

BROWN LACEWINGS Family Hemerobiidae Identification: Similar to Chrysopidae but brownish and generally much smaller. FW with apparently 2 or more radial sectors. Some costal cross veins forked.

Brown lacewings are less common than green lacewings, and are most likely to be encountered in wooded areas. They are widely distributed. Adults and larvae are predaceous.

SPONGILLAFLIES Family Sisyridae Identification: Lacewinglike, 6-8 mm. Costal cross veins not forked. Sc and Ri fused near wing tip. Vertex convex.

Sisyrids resemble small brownish lacewings, and are found near water. Larvae feed on freshwater sponges.

Antlions and Owlflies: Superfamily Myrmeleontoidea

Large insects resembling damselflies or dragonflies but with longer antennae that are clubbed.

ANTLIONS Family Myrmeleontidae

Identification: Damselflylike, the antennae about as long as head and thorax together. An elongate cell behind point of fusion of Sc and Ri.

Antlions resemble damselflies but are softer-bodied and have conspicuous knobbed antennae. Larvae (sometimes called doodlebugs) have long sicklelike jaws and usually live at the bottom of a conical pit in dry sandy or dusty areas. They feed on ants and other insects that fall into this pit.

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