. Cooperative economic insect report. Beneficial insects; Insect pests. 506 - Life History and Habits: As far as known, nothing has been published regarding the biology of C. slgnatlcollls except for the field observations made lil Australia. In the Sydney area, larval feeding and damage to vegetation are con- fined to the autumn and early winter months, there being no resumption of activity In the spring. Larval development Is very rapid and most of the larvae complete their feeding by late fall. The adult flight period Is from late November to early January, with peak flights occurring In la
. Cooperative economic insect report. Beneficial insects; Insect pests. 506 - Life History and Habits: As far as known, nothing has been published regarding the biology of C. slgnatlcollls except for the field observations made lil Australia. In the Sydney area, larval feeding and damage to vegetation are con- fined to the autumn and early winter months, there being no resumption of activity In the spring. Larval development Is very rapid and most of the larvae complete their feeding by late fall. The adult flight period Is from late November to early January, with peak flights occurring In late December. The adults first appear In flight at dusk, becoming strongly attracted to lights after dark; males outnumber females. Copulation occurs on the ground and the females burrow Into the soil Immediately. The larvae seem to prefer high soil moisture requirements, because the greatest numbers can be found In shaded or otherwise naturally damp situations at the end of May. The average annual rainfall In Sydney (48 Inches) Is appreciably greater than Buenos Aires (37 inches), but the temperature regime of Sydney is very similar to that of Buenos Aires. Description: ADULT - Length to cm. Dorsally glabrous; color light brown to brownish-beige, with the pronotum somewhat darker than the elytra. Elytra and pronotum with complex, bilaterally symmetrical, dark brown markings and shallow irregular punctation; elytral markings obsolete in some specimens, but always pre- sent on pronotum. Head dark brownish-black; clypeus dull reddish-brown. Abdomen, legs and coxae light brown, the latter with erect golden hairs. Pygidium lightly and irregularly punctate, glabrous except for central tuft of yellowish hairs on posterior margin. Anterior claws of female equal and simple, and tarsal segments equal in length. Anterior claws much larger in male, strongly asymmetrical, the larger claw with a fine subapical spine externally; last tarsal segment greatly enlarged to support claws
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Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect
