Physetica longstaffi

Species of moth endemic to New Zealand

Physetica longstaffi is a species of moth of the family Noctuidae. It is endemic to New Zealand and found in the North and South Islands. This species lives in open habitats and shrublands, at altitudes ranging from the low alpine zone down to sea-level. As at 2017 the biology of this species is in need of further investigation as there is no published description of the larvae of this species nor have larval specimens been preserved in collections. There is also confusion over the possible larval host plants for this species. This species is on the wing from February to May. There is also a record from the North Cape in December. The adults of this species is attracted to light. P. longstaffi might possibly be confused with P. sequens or P. phricias. However unlike both P. sequens and P. phricias, P. longstaffi has a large oval mark near the centre of the forewing. Other distinguishing features include further differences in the colouration of the forewings of P. longstaffi as well as differences in the third labial palp segment of the male and differences in the shape of the male genitalia.

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