Cycloneda

Crotch, 1871

Spotless Lady Beetles

Species Guides

4

Cycloneda is a of lady beetles in the Coccinellidae, commonly known as spotless lady beetles. The genus contains approximately 18–20 described distributed primarily in the Americas. Members of this genus are recognized by their typically unmarked, polished lacking the spots characteristic of many other coccinellids. They are predatory beetles that feed on soft-bodied insects, particularly aphids and spider mites, and are valued as agents in agricultural and garden settings.

Cycloneda sanguinea by (c) Helio Lourencini, some rights reserved (CC BY), uploaded by Helio Lourencini. Used under a CC-BY license.Cycloneda by (c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY), uploaded by Jan Ebr & Ivana Ebrová. Used under a CC-BY license.Cycloneda by no rights reserved, uploaded by brabuleta. Used under a CC0 license.

Pronunciation

How to pronounce Cycloneda: /sɪkloʊˈnɛdə/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Spotless or minimally marked distinguish Cycloneda from most other lady beetle , which typically bear conspicuous spots or patterns. The pronotum often displays distinctive white or pale markings that vary among . Species-level identification requires examination of pronotal pattern, body size, and in some cases, male genitalia. Cycloneda sanguinea, one of the most widespread species, is recognized by its polished reddish-orange elytra and white pronotal markings with dark borders.

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Habitat

Found in diverse terrestrial including gardens, agricultural fields, meadows, and natural vegetation. Often associated with plants hosting colonies or spider mite .

Distribution

Primarily distributed in the Americas, with ranging from North America through Central America to South America. Specific distribution varies by species; Cycloneda sanguinea occurs from the United States to South America.

Diet

Predatory; feeds on soft-bodied arthropods including aphids and spider mites. Cycloneda sanguinea has been documented as a of the two-spotted spider mite (Tetranychus urticae).

Life Cycle

Complete with , larval, pupal, and stages. For Cycloneda sanguinea reared on Tetranychus urticae: egg stage averages 3.06 days, four larval instars average 5.50 days total, and pupal stage averages 3.20 days. Larvae are elongate, somewhat alligator-like in form, and actively mobile. Both larvae and adults are predatory.

Behavior

and larvae actively hunt soft-bodied prey. Searching is influenced by odor signals; olfactory cues from prey or their honeydew may enhance foraging . Adults may feed on pollen and nectar when prey is scarce.

Ecological Role

of phytophagous insects and mites, particularly aphids and spider mites that are agricultural pests. Contributes to natural in gardens, agricultural systems, and natural .

Human Relevance

Valued as agents for aphids and spider mites in gardens and agriculture. Larvae are sometimes mistaken for pests and killed by uninformed gardeners. occasionally bite humans, apparently to obtain salt rather than defensively.

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