Madagascar hissing cockroach
Gromphadorhina portentosa
ok. 60 mmAdult male
Body length
Body length
głowa i tułów z odwłokiem, bez czułków i odnóżyMeasurement: side
Madagascar hissing cockroach — size comparison
The Madagascar hissing cockroach feeds mainly at night among litter and decaying wood. It eats primarily dead plant material, including fallen fruit, helping br
Silhouette comparison
Length
głowa i tułów z odwłokiem, bez czułków i odnóżyScale for the stated dimensions · each animal is labelled
Measurement comparisonScale in cm
0246810
approx. 60 mm
8.56 cm
The scale compares the named dimensions. View direction and measurement points are given for each animal.
Madagascar hissing cockroach — size comparison — facts and sources
The Madagascar hissing cockroach feeds mainly at night among litter and decaying wood. It eats primarily dead plant material, including fallen fruit, helping break it down. It avoids light and therefore usually stays hidden by day.
It produces hisses by rapidly expelling air through abdominal spiracles. Signals occur in different situations: danger, courtship and male competition. Sound therefore also matters in interactions between individuals.
Adult males occupy small territories. In contests they push one another and use raised projections on the pronotum. These projections, rather than the spiracles responsible for hissing, are more developed in males.
Długość ciała: głowa i tułów z odwłokiem, bez czułków i odnóży. Przykład 6 cm długości ciała z zakresu 5,1–10,2 cm dorosłych w ADW. Punkt dotyczy opisanego przykładu lub zakresu źródłowego; nie stanowi normy dla wszystkich osobników. Długość jest osobno skalibrowana w boku i ujęciu z góry. Ilustracja zapałki ma długość 4 cm.