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| Dicranophorus luetkeni var. |
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| Dicranophorus luetkeni: morphotype with conspicuous birefringent crystals in the large retrocerebral sac (1) |
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| Dicranophorus luetkeni: forcipate trophi in dorsoventral view; the arrowheads show two epipharyngeal structures which are different from the ones in D. luetkeni Bergendahl (1892) (1) |
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