Dryocoetoides truncatellus
Wood, 2007: This species is xylomycetophagous and inbreeds polygynous. They breed mostly in unthrifty, injured, or cut stems larger than 3 cm and apparently smaller than 10 cm in diameter.
Wood, 2007: This species is xylomycetophagous and inbreeds polygynous. They breed mostly in unthrifty, injured, or cut stems larger than 3 cm and apparently smaller than 10 cm in diameter.
Wood (1982) distinguishes the species from T. falvipes (F.) by the more broadly, less deeply excavated elytral declivity, with the denticles on the lateral margins smaller and stouter, by the larger strial punctures on the declivity face, and by the larger size.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/257 |
Wood (1982) diagnoses the species from T. varians (F.) by the smaller average size, by the steeper elytral declivity, and by the flatter lower half of the declivity with its ventrolateral margin subacutely elevated and its face irregular and closely, coarsely punctured.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/256 |
Wood (1982) reports the biology as similar to Xyleborus perebeae (Ferrari), a synonym of Taurodemus flavipes (F.). The female usually attacks cut or broken branches and tree seedlings 2-7 cm in diameter. The entrance tunnel extends directly into the wood to a depth of about 1 cm, then bifurcates and follows a growth ring both to the right and the left, on the same transverse plane, and often meeting and joining on the opposite side of the branch. Masses of eggs are deposited in the tunnels. The larvae feed in congress upon the ambrosial fungus and, evidently, also upon the woody tissues (xylomycetophagy), thus expanding the original gallery along the grain of the wood to form a large tabular chamber barely large enough to accommodate the mass of growing larvae. As many as 30-50 larvae may be produced by one female. Males are rare.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/259 |
Wood (1982) reports the biology as similar to Xyleborus perebeae (Ferrari), a synonym of Taurodemus flavipes (F.). The female usually attacks cut or broken branches and tree seedlings 2-7 cm in diameter. The entrance tunnel extends directly into the wood to a depth of about 1 cm, then bifurcates and follows a growth ring both to the right and the left, on the same transverse plane, and often meeting and joining on the opposite side of the branch. Masses of eggs are deposited in the tunnels. The larvae feed in congress upon the ambrosial fungus and, evidently, also upon the woody tissues (xylomycetophagy), thus expanding the original gallery along the grain of the wood to form a large tabular chamber barely large enough to accommodate the mass of growing larvae. As many as 30-50 larvae may be produced by one female. Males are rare. Wood, 1982: The female usually attacks cut or broken branches and tree seedlings 2-7 cm in diameter. The entrance tunnel extends directly into the wood to a depth of about 1 cm, then bifurcates and follows a growth ring both to the right and to the left, on the same transverse plane, and often meeting and joining on the opposite side of the branch. Masses of eggs are deposited in the tunnels. The larvae feed in congress upon the ambrosial fungus and, evidently, also upon the woody tissues, thus expanding the original gallery along the grain of the wood to form a large tabular chamber barely large enough to accommodate the mass of growing larvae. As many as 30-50 larvae may be produced by one female. Males are rare.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/258 |
The species apparently exceedingly rare (Wood 1982).
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/257 |
Wood (1982) reports the biology as similar to Xyleborus perebeae (Ferrari), a synonym of Taurodemus flavipes (F.). The female usually attacks cut or broken branches and tree seedlings 2-7 cm in diameter. The entrance tunnel extends directly into the wood to a depth of about 1 cm, then bifurcates and follows a growth ring both to the right and the left, on the same transverse plane, and often meeting and joining on the opposite side of the branch. Masses of eggs are deposited in the tunnels. The larvae feed in congress upon the ambrosial fungus and, evidently, also upon the woody tissues (xylomycetophagy), thus expanding the original gallery along the grain of the wood to form a large tabular chamber barely large enough to accommodate the mass of growing larvae. As many as 30-50 larvae may be produced by one female. Males are rare. Wood, 1982: The female usually attacks cut or broken branches and tree seedlings 2-7 cm in diameter. The entrance tunnel extends directly into the wood to a depth of about 1 cm, then bifurcates and follows a growth ring both to the right and to the left, on the same transverse plane, and often meeting and joining on the opposite side of the branch. Masses of eggs are deposited in the tunnels. The larvae feed in congress upon the ambrosial fungus and, evidently, also upon the woody tissues, thus expanding the original gallery along the grain of the wood to form a large tabular chamber barely large enough to accommodate the mass of growing larvae. As many as 30-50 larvae may be produced by one female. Males are rare. It is a common species in agricultural and other disturbed areas.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/256 |
Wood (1982) distinguishes this species from T. lenis (Wood) by the face of the elytral declivity that is densely and rather deeply punctured by minute impressed points.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/259 |
Wood (1982) distinguishes the species from T. sharpi (Blandford) by the much lower position of the major declivital spines on the elytral declivity, by the larger size and more slender, pointed form of the major declivital spine, by the arrangement of minor declivital denticles, and by the rufescent pronotum, with black elytra.
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Rights holder/Author | hulcr, Xyleborini Ambrosia Beetles |
Source | http://xyleborini.myspecies.info/node/258 |