Meropathina, Perkins, 1997
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publication ID |
https://doi.org/ 10.11646/zootaxa.4444.4.3 |
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publication LSID |
lsid:zoobank.org:pub:BAA1719D-6322-4627-8A9E-2DD05A60C581 |
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DOI |
https://doi.org/10.5281/zenodo.5971390 |
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persistent identifier |
https://treatment.plazi.org/id/F279EE4B-FFBE-F40E-FF1B-F8F448A6CDCF |
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treatment provided by |
Plazi |
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scientific name |
Meropathina |
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Subtribe Meropathina View in CoL Perkins
Perkins 1997: 143.
The many morphological differences betWeen the genera of Meropathina are discussed and illustrated by Perkins (1997, 2004). Some of these differences are summarized beloW and presented in the key to genera that folloWs.
Recent unpublished DNA sequence data (I. Ribera, pers. com.) has corroborated the sister group relationships of the Ochthebiina and Meropathina , Which Were proposed by Perkins (1997) on the basis of the hypomeral antennal pocket morphology, and differences in the exocrine secretion delivery systems, among other morphological characters.
The antennal club of all members of Meropathina have sensilla interspersed With the hydrofuge setae. These sensilla are usually located near the distal end of the club articles. In members of Meropathus ( Fig. 12 View FIGURES 10–13 ) and Tympanogaster they are not organized into groups, Whereas in Tympallopatrum the sensilla form distinct clusters ( Figs. 15, 16 View FIGURES 14–19 ). The antennae of Prototympanogaster are similar to those of Tympanogaster .
The maxilla in members of Tympanogaster provide distinctive, derived features ( Figs. 25–28 View FIGURES 23–28 ). The lacinia has a large, scoop-like, apical tooth in Tympanogaster ; in the presumed ancestral condition of the Ochthebiini this structure has a tooth-like shape With a bifid apex (see Perkins 1980: 297). The galea has several closely spaced, flat teeth that together form a palmate shape; this is unique in the family. There is some variation in the length and proportions of the maxillary palpi. This variation, like the variation in leg length, is related to the microhabitat: the strictly aquatic members having longer legs and palpi, and the moss dWelling or humicolous species having shorter legs and palpi. The maxillae of Prototympanogaster ( Fig. 21 View FIGURES 21–22 ) are similar in morphology to that of Tympanogaster , and the legs are moderately long.
The mentum of Prototympanogaster lordhowensis and Meropathus chuni are different in shape and especially chaetotaxy ( Figs. 21, 22 View FIGURES 21–22 ).
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.