Dyspnoi
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publication ID |
https://doi.org/10.1093/zoolinnean/zlz016 |
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persistent identifier |
https://treatment.plazi.org/id/03A2D537-5E53-FFF9-D229-F9E4FD3FB81F |
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treatment provided by |
Plazi |
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scientific name |
Dyspnoi |
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The three species of Dyspnoi studied show three sensilla aligned along the sagittal axis in a corresponding position as Laniatores , on the distalmost tarsomeres of legs I and II. The three sensilla differ from the surrounding sensilla chaetica and trichomes by having a flat articulation membrane ( Figs 7 View Figure 7 , 8 View Figure 8 ). The proximal two sensilla are short and conical, being also termed sensilla basiconica. The distal sensillum has a very similar morphology to the hooded sensillum in Laniatores and, therefore, we refer to it using the same name.
The hooded sensillum is longer than both sensilla basiconica ( Figs 7A, C View Figure 7 , 8A, D View Figure 8 ). The shaft has longitudinal ridges and gradually tapers into a fine tip ( Figs 7C View Figure 7 , 8A View Figure 8 ). The apical portion has two pore-like structures in a region without ridges, but shows no subterminal swelling (see Ps in Figs 7D View Figure 7 , 8D View Figure 8 ). The distal pore-like structure is smaller than the proximal ( Fig. 7D View Figure 7 ). The side opposite to the pore-like structures is similar to the rest of the shaft, with ridges.
The sensilla basiconica are thin pegs, being the shortest sensilla in the tarsomere ( Figs 7A, B View Figure 7 , 8A–C View Figure 8 ). The proximal sensillum in Anelasmocephalus sp. ( Trogulidae ) is shorter than the mid sensillum, both being shorter than the distal-hooded sensillum ( Fig. 8A View Figure 8 ), but in the other species we could not access their relative length. The shaft is bent forward in its mid portion, in an angle of almost 90º ( Figs 7B View Figure 7 , 8A– C View Figure 8 ). Apically, it bears a subterminal pore with a short slit, which faces down in Nemastoma bimaculatum Fabricius, 1775 ( Nemastomatidae ) ( Fig. 7A, B View Figure 7 ) or up in Anelasmocephalus sp. ( Fig. 8A–C View Figure 8 ). The slit apparently does not divide the shaft into two flaps as in Laniatores . We observed no articulation membrane fusion between the three sensilla and three shafts are more interspaced than in Laniatores ( Figs 7A View Figure 7 , 8A View Figure 8 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.