Genus
dsDNA Viruses

Genus: Deltaentomopoxvirus

Subfamily: Entomopoxvirinae

Genus: Deltaentomopoxvirus

 

Distinguishing features

The genus Deltaentomopxvirus includes a single species, Melanoplus sanguinipes entomopoxvirus, that includes Melanoplus sanguinipes entomopoxvirus 'O' (MSEV), which infects the North American migratory grasshopper and other related orthopteran hosts. Infection is through the midgut, with the fat body being the major target organ for virus replication. Disease develops slowly, is highly debilitating and results in high mortality.

Genus
dsDNA Viruses

Genus: Betaentomopoxvirus

Subfamily: Entomopoxvirinae

Genus: Betaentomopoxvirus

 

Distinguishing features

The genus includes poxviruses that infect insects of the order Lepidoptera. The genus includes 16 species. Mature virions are occluded within spheroids after cell disintegration and are thought to be important for dissemination. Disease signs include; re-organisation of the host cell cytoskeleton, arrested moulting of the larvae, larval paralysis, loss of coordination and lethargy.

Genus
dsDNA Viruses

Genus: Alphaentomopoxvirus

Subfamily: Entomopoxvirinae

Genus: Alphaentomopoxvirus

 

Distinguishing features

The genus includes poxviruses that infect insects from the order Coleoptera and have been detected worldwide. The genus includes 7 virus species. Disease is characterised by whitening and flaccidity of larval stages.

Virion

Virions are ovoid, about 400–450 × 220–250 nm in size, with one lateral body and a unilateral concave core. Surface globular units give the virion a mulberry-like appearance and are 22 nm in diameter .

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