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n.1.(Zool.) Any one of numerous species of sand wasps of the genus Sphex and allied genera. These wasps have the abdomen attached to the thorax by a slender pedicel. See Illust. of Sand wasp, under Sand.
Sphex fly
(Zool.) any one of numerous species of small dipterous flies of the genus Conops and allied genera. The form of the body is similar to that of a sphex.
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Fabre has lately shown good reason for believing that although the Tachytes nigra generally makes its own burrow and stores it with paralysed prey for its own larvae to feed on, yet that when this insect finds a burrow already made and stored by another sphex, it takes advantage of the prize, and becomes for the occasion parasitic.
Hutton has described a sphex with similar habits in India, in the "Journal of the Asiatic Society," vol.
Though it flies around quite haphazardly, the Sphex lives a very routine life.
R(1) Prionyx atratus R(5) (Lepeletier) Prionyx parkeri C(13) Bohart and Menke Sphex ichneumoneus C(17) (L.
Especie tipo: Sphex spirifex Linnaeus, 1758, designada por Bingham, 1897:235.
This he does largely through an analysis of the detailed workings of the sphex wasp, whose complex behavior reveals a patterned and intelligible series of acts in light of the goal-directed explanation that Okrent proposes.
Burdett goes on to cite Daniel Dennett in describing the Sphex wasp as essentially a complex biological robot with no free will, while at the same time maintaining that humans have free will.