aculeus


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  • noun

Words related to aculeus

a stiff sharp-pointed plant process

a sharp-pointed process especially a sting of a hymenopterous insect

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References in periodicals archive ?
The aculeus showed variations among populations for just 2 (total length and width) of the 11 variables studied.
Female terminalia: Oviscape: Tergal-oviscapal measure about 3; oviscape orange-yellow (black in discoloured specimens), subshiny, with dense brown setulae; aculeus elongate (ca 11x as long as wide) (Figs 18, 19).
Direct observations show that just prior to intromission, if the female raises her ovipositor and extends it so that the apical portion of the aculeus is exposed from the eversible membrane, the male can grasp it with his genitalic surstyli.
For example: "Aculeus is the modified ovipositor or sting of certain hymenopterous insects."
and Marinogammarus spp.), and other small gastropods (notably Onoba aculeus) were also common.
Pyrgotidae Schiner, 1868 are medium to large-sized (4-18 mm) acalyptrate flies, which usually can be recognized by a rather slender (often wasp-like) body, pictured or hyaline wings with short lobate cell bcu, oblique face, genal groove prolongated postero-dorsally to the middle of occiput height, and stiletto-like aculeus that is much shorter than the oviscape.
Elapsed time from first contact of the probe with the scorpion's body to the moment when the scorpion's aculeus (stinger) touched the target was recorded as sting latency.
Telson smooth with a moderately long and moderately curved aculeus; subaculear tooth strong and spinoid.
suspensa is performed using adult morphology, and confirmation can require examination of the female aculeus (White & Elson-Harris 1992; Norrbom et al.
Of course, Neosilba species have a less sclerotized aculeus in comparation to that of Anastrepha and Ceratitis species (tephritids), but further studies are needed to clarify if the females of Neosilba species are able to use muscular power to insert their eggs inside the fruit pulp or if the newly-hatched larvae are able to bore the fruit peel to reach and feed inside the fruits.