''Phthorimaea involuta'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family

Gelechiidae The Gelechiidae are a family of moths commonly referred to as twirler moths or gelechiid moths. They are the namesake family of the huge and little-studied superfamily Gelechioidea, and the family's taxonomy has been subject to considerable dis ...

. It was described by

Edward Meyrick Edward Meyrick (25 November 1854, in Ramsbury – 31 March 1938, at Thornhanger, Marlborough) was an English schoolmaster and amateur entomologist. He was an expert on microlepidoptera and some consider him one of the founders of modern micr ...

in 1917. It is found in

Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 9–11 mm. The forewings are grey whitish or whitish grey, irrorated (sprinkled) with black and with a narrow oblique blackish bar from the costa near the base and a broader one at one-third, both terminated by small yellow-ochreous spots on the fold edged beneath by black marks, the second spot representing the plical stigma. The discal stigmata are yellow ochreous, edged above and below by black spots, the first obliquely beyond the plical stigma, its margin separated by an ochreous mark from a small blackish spot on the costa above it, the margin of the second usually absorbed in a subquadrate blackish blotch on the costa above it, its lower margin sometimes forming a considerable spot. There is also a well-defined blackish apical blotch. The hindwings are dark grey, sub

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

(almost glass like) in the disc anteriorly and towards the dorsum.''Transactions of the Entomological Society of London''. 1917 (1): 47.

References

Phthorimaea Moths described in 1917 {{Gnorimoschemini-stub