''Pseudacteon'' is a genus of flies in the family
Phoridae. There are over 70 described species of ''Pseudacteon'' fly. They are also known as ant-decapitating flies due to their parasitic larval stage. An egg is injected by the female fly into the shoulder joint of an ant worker. Soon after, the egg undergoes rapid inflation as it appears to absorb ant hemolymph. This first instar larva migrates into the ant head and consumes the jaw muscle and other tissues, leaving the mandibles hanging and preparing a future exit space. After about two weeks, the ant worker is termed a "zombie" because the fly larva has effectively taken control. The worker leaves the nest and dies in the leaf litter or in a crack in the soil. As it dies, the ant's head falls off, apparently because the fly larva releases an enzyme that dissolves the membrane attaching the ant's head to its body.
The fly pupates in the detached head capsule, requiring a further two weeks before emerging through the ant's mouth.
In tropical, subtropical areas the flies are active all year round, but in temperate regions they are active during all months except the winter months. Several ''Pseudacteon'' species were deliberately introduced to the United States to combat via
biological control the invasive fire ant species ''
Solenopsis invicta''.
Species
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P. aduncus''
Borgmeier, 1969
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P. affinis''
Borgmeier, 1962
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P. antiguensis''
( Malloch, 1912)
*''
P. arcuatus''
Borgmeier, 1969
*''
P. australis''
Borgmeier, 1962
*''
P. bifidus''
Brown & Morrison, 1999
*''
P. bispinosus''
Borgmeier & Prado, 1975
*''
P. borgmeieri''
Schmitz, 1923
*''
P. borgmeieri''
Schmitz, 1923
*''
P. botulpalpatus''
Disney & Mikhailovskaya, 2000
*''
P. brevicauda''
Schmitz, 1925
*''
P. browni''
Disney, 1991
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P. bulbosus''
Brown, Folgarait & Gilbert, 2003
*''
P. calderensis''
Calcaterra, 2007
*''
P. californiensis''
Disney, 1982
*''
P. caudalis''
Borgmeier, 1923
*''
P. claridgei''
Disney, 2000
*''
P. comatus''
Borgmeier, 1925
*''
P. conicornis''
Borgmeier, 1962
*''
P. convexicauda''
Borgmeier, 1962
*''
P. crawfordi''
Coquillett
Daniel William Coquillett (23 January 1856, Pleasant Valley, Ill. – 7 July 1911 Atlantic City, New Jersey) was an American entomologist who specialised in Diptera. He wrote a revision of the dipterous family Therevidae and many other scientifi ...
, 1907
*''
P. crinifer''
Beyer, 1966
*''
P. cultellatus''
Borgmeier, 1925
*''
P. curriei''
( Malloch, 1912)
*''
P. curvatus''
Borgmeier, 1925
*''
P. dentiger''
Borgmeier, 1962
*''
P. disneyi''
Pesquero, 2000
*''
P. dorymyrmecis''
Borgmeier, 1925
*''
P. fennicus''
Schmitz, 1927
*''
P. formicarum''
( Verrall, 1877)
*''
P. fowleri''
Pesquero, 2000
*''
P. furvicolor''
(Beyer, 1959)
*''
P. genebrae''
Mattos & Orr, 2002
*''
P. grandis''
Greene, 1940
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P. hexasetalis''
Liu & Cai, 2013
*''
P. javensis''
( Brues, 1915)
*''
P. lenkoi''
Borgmeier & Prado, 1975
*''
P. litoralis''
Borgmeier, 1925
*''
P. lonicauda''
Borgmeier & Prado, 1975
*''
P. lontrae''
Mattos & Orr, 2002
*''
P. lundbecki''
Schmitz, 1924
*''
P. lusitanus''
Schmitz, 1938
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P. nocens''
Borgmeier, 1926
*''
P. nudicornis''
Borgmeier, 1925
*''
P. obtusatus''
Liu & Cai, 2013
*''
P. obtusus''
Borgmeier, 1925
*''
P. onyx''
Steyskal, 1944
*''
P. palpatus''
Schmitz, 1938
*''
P. pradei''
Borgmeier, 1925
*''
P. pullum''
Mikhailovskaya, 1995
*''
P. pusillus''
Borgmeier, 1938
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P. quadrisetalis''
Liu & Cai, 2013
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P. rudisetosus''
Disney & Mikhailovskaya, 2000
*''
P. setipalpatus''
Disney & Mikhailovskaya, 2000
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P. setosus''
Disney & Mikhailovskaya, 2000
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P. simplex''
Borgmeier, 1969
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P. solenopsidis''
(Schmitz, 1914)
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P. spatulata''
( Malloch, 1912)
*''
P. tricuspis''
Borgmeier, 1925
*''
P. tubiceroides''
Disney, 2000
*''
P. wasmanni''
(Schmitz, 1914)
References
{{Taxonbar, from=Q4047517
Phoridae
Platypezoidea genera