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The morphology of juvenile stages and ontogeny of Heterozetes palustris (Willmann, 1917) and Zetomimus furcatus (Pearce & Warburton, 1906) are redescribed and illustrated. The juveniles of the former species have most prodorsal and gastronotal setae long, and smooth integument with microtuberculate cerotegument, while those of the latter species have most prodorsal and gastronotal setae short,...
The morphology of juvenile stages of Parachipteria bella (Sellnick, 1928) and P. willmanni Hammen, 1952 is described and both these and adults are illustrated. The respective juvenile stages of P. bella are smaller than those of P. willmanni. In P. bella the anterior region of the prodorsum is distinctly reticulated, but that of P. willmanni is not. In P. bella the gastronotal setae, especially those...
Trhypochthonius semovitusi sp. nov. is described from Poland. The main character of the species is different shape of the prodorsal and notogastral setae. Notogastral setae are short, smoth, with characteristic blunt; all prodorsal setae are barbed, thick, distinctly longer and more solid than notogastral setae.
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