The genus Gammaentomopoxviruses includes six species whose members infect Diptera. Mature viruses are occluded within ellipsoidal and spindle-shaped inclusion bodies. Disease signs include the accumulation of white patches under the cuticle and liquefaction of fourth-instar larvae.
Virions are brick-shaped, about 320×230×110 nm in size, with two lateral bodies and a biconcave core
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.
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.
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.
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 .
