Neuroptera of the Amazon Basin Part 7 - Corydalidae 0)

The two genera and eight species of Corydalidae (Neuroptera: Megaloptera) known from the Amazon Basin are described and keys are provided to their identification.


INTRODUCTION
listed 7 genera and 45 species, although Glorioso (1981) has since synonomized the genus Doeringia, and Flint (1973) has described two more species from Chile, and reduced one form to subspecies rank.

Studies of the North American species
Corydalus cornutus (Linnaeus) and Corydalus cognatus (Hagen) indicate that females oviposit only two or three masses of eggs at the beginning of "Summer", in shaded areas or dark substrates over the water, like fallen tree trunks or under bridges. Each mass of eggs contains between 1000 and 3000 eggs, and are covered with a brilliant white pro tective material secreted by a gland at the end of the female's abdomen (Brown & Fitzpatrick, 1978J . The eggs hatch afte 1about 13 days and larvae emerge from the eggs aided by a toothed egg burster (Evans, 1972) . Larvae fall or crawl into the water and pass through 11 larval stages that last three years in colder regions (Evans, 1972) or two years in warm temperate areas (Brown & Fitzpatrick, 1978) .
Larvae feed on a wide variety of small aquatic animals, including other corydalids. The mature larvae crawl out of the water and pupate under stone and plant debris. Females require some days to mature and produce eggs after emergence, and feed on fruit juices and sugar water in the laboratory. Males appear not to feed, or feed on fruit juices (Brown & Fitzpa trick, 1978) . Mature males secrete a strong odor from a pair of eversible glands located anterior to the ninth abdominal segment.
Mating occurs on a vertical surface and lasts less than a minute. The femaic dies soon after depositing her two or three egg masses ( 1 J -The first part of this series covered the following groups: part 1 -Sisyridae, part 2 -Dilaridae, part 3 -Ascalaphidae, part 4 -Sialidae, part 5 -Coniopterygidae, part 6 -Mantispidae. (2) -Instituto Nacional de Pesquisas da Amazonia, Manaus. species, of which only Chloronia hieroglyphica (Rambur) is found within the Amazon Basin.

Ccrydalus
is a larger genus, with Penny (1977) reporting 27 named species from the Neotropical Region, although a? Glorioso (1981) states "only about a dozen appear valid". The two included genera can be separated by use of the following key: This genus is known from 35 described names, but much synonomy is present (Glorioso, 1981 flagellomeres.

Legs:
Femur and basal part of tibia brown changing to pale yellow on apical part of tibia and tarsi. Antennae entirely dark brown to black; basal flagellomeres longer than wide; with 53-60 flagellomeres.

Forewings
Thorax: Pronotum pale brown with longitudinal stripe along lateral margin dark brown to black.

Wings:
Coloration of membrane pale brown, with longitudinal veins yellowish and crossveins black. Lacking white spots in cells.
Hindwing pale yellow without dark markings, or white spots.

Relationships:
The genitalia appear to be similar to C cephalotes, but the wings lack the pterostigmal incision and apical narrowing of this latter species.