Pyrgomorphids
The family Pyrgomorphidae belongs to the order Orthoptera and includes a group of insects commonly known as gaudy grasshoppers. They are easily identified by their specialized head shape and often vivid, warning color patterns, which signal their chemical defense mechanisms to potential predators.
What the section contains
Atractomorpha
Atractomorpha
Atractomorpha aberrans
Atractomorpha aberrans
Atractomorpha acutipennis
Atractomorpha acutipennis
Atractomorpha crenaticeps
Atractomorpha crenaticeps
Atractomorpha crenulata
Atractomorpha crenulata
Atractomorpha lata
Atractomorpha lata
Atractomorpha psittacina
Atractomorpha psittacina
Chinese conehead grasshopper
Atractomorpha sinensis
Elegant grasshopper
Zonocerus elegans
Mexican grasshopper
Sphenarium mexicanum
Painted grasshopper
Poekilocerus pictus
Poekilocerus
Poekilocerus
Pyrgomorpha
Pyrgomorpha
Pyrgomorpha cognata
Pyrgomorpha cognata
Pyrgomorpha conica
Pyrgomorpha conica
Pyrgomorpha vignaudii
Pyrgomorpha vignaudii
Sphenarium
Sphenarium
Sphenarium purpurascens
Sphenarium purpurascens
Tenuitarsus
Tenuitarsus
Tenuitarsus sudanicus
Tenuitarsus sudanicus
Toad grasshopper
Poekilocerus bufonius
Variegated grasshopper
Zonocerus variegatus
Zonocerus
Zonocerus
Pyrgomorphids
These pests pose a significant threat to various agricultural crops, including cereals, legumes, vegetables, and ornamental plants. Their polyphagous nature allows them to thrive in diverse environments, causing substantial economic losses when their populations reach epidemic levels in agricultural regions.
The biological cycle of these insects consists of three main stages: egg, nymph, and adult. They are particularly well-adapted to arid environments. Unlike many other grasshopper species, they possess glands that secrete defensive fluids, making them unpalatable to many natural predators and complicating biological control efforts.
Damage to plants is characterized by the intense defoliation of leaves and stems. As active feeders, they consume both tender young tissues and tougher plant parts. This feeding behavior severely impacts the crop's vitality, leading to reduced photosynthetic capacity, poor fruit development, and significant yield reduction.
Effective management strategies for controlling Pyrgomorphidae include:
- Cultural practices such as deep tillage to destroy egg pods deposited in the soil.
- Targeted application of insecticides to control nymph populations before they reach maturity.
- Regular field monitoring to detect early infestation hotspots.
- Application of biological control agents, including specific entomopathogenic fungi, to reduce pest density.