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Cephisus siccifolius

Cephisus siccifolius

Chicharrita de la Espuma

Family: Aphrophoridae
Order: Hemiptera
Class: Insecta
Phylum / Division: Arthropoda
Kingdom: Animalia

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Description


Belongs to a specialized group of sap-sucking hemipteran insects characterized by the unique protective mechanism employed during their immature stages. Adults of this taxon exhibit a robust, stout body shape, measuring approximately 12 to 15 millimeters in length. Their general coloration is highly cryptic, consisting of mottled shades of grayish-brown, ochre, and dark charcoal, which allows them to blend seamlessly with dry twigs, bark, and dead leaves. The head is broad, featuring prominent compound eyes and short, bristle-like antennae. The forewings, known as tegmina, are leathery, textured, and held roof-like over the abdomen when at rest. The most diagnostic and fascinating feature occurs in the nymphal stage, which produces a dense, bright white, frothy foam mass. This substance is generated by mixing liquid excrement, mucilaginous secretions from specialized abdominal glands, and air pumped through specialized ventral breathing tubes, effectively cloaking the nymph in what resembles human saliva.

Geographical distribution: Occurs widely across the Neotropical region. Its geographical range spans a significant portion of South America, including countries such as Brazil (with dense populations in the Cerrado and Atlantic Forest biomes), Argentina (northern and central provinces), Paraguay, Uruguay, Bolivia, and northern Andean regions of Colombia and Venezuela. It demonstrates a remarkable ecological adaptability across different elevations and thermal regimes.

Habitat: Colonizes a diverse array of environments, ranging from dry forests and shrubby savannas to agricultural borders, urban parks, and domestic gardens. It shows a strong affinity for areas with a high density of woody host plants and shrubs, adjusting easily to disturbed or anthropogenic landscapes provided there is an abundance of suitable vegetation for feeding and egg-laying.

Feeding: Is a strictly phytophagous insect that feeds on plant fluids. Equipped with specialized piercing-sucking mouthparts, both nymphs and adults penetrate plant tissues to access the xylem vessels, drawing up large volumes of sap. Because xylem fluid is nutrient-poor, the insect must process immense quantities of liquid, extracting amino acids and minerals while expelling the excess water, which is then utilized by the nymphs to form their characteristic frothy shelters. Preferred hosts include trees and shrubs of the family Fabaceae (such as Acacia, Erythrina, and Mimosa species) as well as Myrtaceae and various ornamental woody plants.

Behavior: Exhibits highly gregarious tendencies during the nymphal stages, with multiple individuals often sharing a single large mass of foam to prevent desiccation and deter predators like birds, ants, and parasitic wasps. Adults are solitary and highly mobile, possessing powerful hind legs adapted for jumping explosive distances when threatened. They are competent flyers, though they primarily rely on visual crypsis to escape detection, remaining completely motionless on branches for extended periods during daylight hours.

Reproduction: Begins during the warmer, high-humidity months of spring and summer, when mating occurs on the branches of host plants. Females use a sharp, saw-like ovipositor to insert eggs endophitically into slits in the soft bark, petioles, or leaf tissues. Upon hatching, the young nymphs immediately migrate to tender stems to begin feeding and generating their protective spittle mass. The nymphs progress through five distinct instars, shedding their exoskeletons inside the protective foam before emerging as fully winged, sexually mature adults.

Conservation status: Has not been evaluated by the International Union for Conservation of Nature (IUCN) and does not currently hold any formal conservation status. It is considered a common and highly resilient species, sometimes viewed as a minor agricultural or horticultural pest due to the aesthetic damage and localized branch dieback caused by heavy feeding aggregations.



Compilation and publication: EcoRegistros – 19/09/2026




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Foto
Photography ID: 131097
  Adult

Santa Fe
Santa Fe
Argentina
12/04/2011
Gustavo Fernando Durán



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
166398929/10/2022ArgentinaSanta FeReserva Ecológica Ciudad Universitaria UNL (RECU), Santa Fe1Gustavo Fernando Durán
166349724/10/2022ArgentinaSanta FeParque del Sur "General Manuel Belgrano", Santa FeGustavo Fernando Durán
151087904/12/2021ArgentinaSanta FeParque del Sur "General Manuel Belgrano", Santa Fe1Gustavo Fernando Durán
131444622/11/2020ArgentinaSanta FeEduardo TesaireGustavo Fernando Durán
117142017/01/2020ArgentinaCiudad Autónoma de Buenos AiresAvenida Intendente Hernan M. Giralt 80, Reserva Ecológica Costanera Sur (RECS)Gustavo Fernando Durán
113578121/11/2019ArgentinaCiudad Autónoma de Buenos AiresCamino de los Lagartos, Reserva Ecológica Costanera Sur (RECS)Gustavo Fernando Durán
113401617/11/2019ArgentinaSanta FeEduardo TesaireGustavo Fernando Durán
50618423/11/2016ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)2Gustavo Fernando Durán
34623414/10/2015ArgentinaSanta FeReserva Ecológica Ciudad Universitaria UNL (RECU), Santa Fe3Gustavo Fernando Durán
38108604/12/2011ArgentinaSanta FeReserva Ecológica Ciudad Universitaria UNL (RECU), Santa FeGustavo Fernando Durán
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Cephisus siccifolius – Species account. Accessed from www.ecoregistros.org on 27/09/2026.