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Orange Head Roach (Eublaberus posticus)

Eublaberus posticus

The Eublaberus posticus (Orange Head Roach). It is a spectacular South American roach (about 1.6 inches), famous for its chromatic 'Aposematism': both nymphs and adults exhibit an extraordinary large spot (pronotum) of a bright Pumpkin Orange/Red set between raven black wings or burgundy bodies. Unlike the shy Dubia, Orange Heads are opportunistic carnivores, fierce detritivores, insatiable devourers of carcasses and excrement (bat guano in nature). They have a monstrous protein appetite (if undernourished they rapidly become cannibals devouring molting companions). They move much faster than Dubias and males are excellent flyers who love to dive from the top of perches. They require a substrate to dig in (being partly burrowers) and suffocating heat to thrive. A fantastic 'premium' feeder insect, very active and stimulating for predatory reptiles.

Taxonomy
Class:Insecta
Order:Blattodea
Family:Blaberidae
Genus:Eublaberus
Species:Eublaberus posticus

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Environment

Terrestrial

Humidity

50 - 70 %

Day temperature

24 - 32 °C

Night temperature

20 - 24 °C

UVB

None

Species description

Origin and Habitat: The cited taxonomic record does not provide a locality-level habitat account for Eublaberus posticus.
Taxonomy and Genetics: GBIF Backbone Taxonomy records Eublaberus posticus (Erichson, 1848) in Eublaberus, Blaberidae, Blattodea.
Behaviour and Habits: The cited record does not document behavioural observations.
Morphology and Sexual Dimorphism: The cited record does not provide a morphological diagnosis or sex-specific comparison.

Care, breeding and tankmates

Terrarium Setup: The cited taxonomic record identifies Eublaberus posticus as a blaberid cockroach. It does not establish enclosure dimensions, substrate, furnishings or captive setup parameters.
Lighting and Heating: The cited record provides no captive lighting or temperature protocol; none is inferred here.
Humidity and Hydration: The cited record provides no captive humidity or hydration target; none is inferred here.
Feeding and Supplementation: The cited record provides no captive diet, frequency or supplementation protocol; none is inferred here.
Compatibility and Coexistence: The cited record does not establish cohabitation criteria.
Health and Common Diseases: The cited record provides no veterinary or disease-management guidance.

Geographic Origin and Distribution

This species originates from: Sud e Centro America (Grotte per pipistrelli e tronchi marcescenti in Amazzonia, Brasile, Costa Rica).

Origin

Amazon, Orinoco, and GuianasCentral America and Caribbean

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
5.2 cm
The catalog's scalar value is 5.2 cm. The Roach Crossing — Eublaberus posticus source reports a maximum adult measurement of 5.2 cm for this species, recorded as total length (TL). The taxonomic record consulted is Eublaberus posticus. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Venom level
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 08/10/2026