Nigrobaetis Novikova & Kluge, 1987
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publication ID |
https://dx.doi.org/10.3897/zookeys.1139.94586 |
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publication LSID |
lsid:zoobank.org:pub:57CDA884-15C5-42A3-9CF7-89DBC60150C4 |
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persistent identifier |
https://treatment.plazi.org/id/6017C9A8-89FB-59F4-B135-7237C9298FAC |
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treatment provided by |
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scientific name |
Nigrobaetis Novikova & Kluge, 1987 |
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8. Nigrobaetis Novikova & Kluge, 1987 View in CoL View at ENA
Diagnosis.
1) Antennae located close together with a well-developed carina in between; 2) mouthparts in a hypognathous position giving to the body a curved posture in lateral view; 3) right mandible with a simple robust prostheca; 4) paraproct without protuberance.
Remarks.
The position of the antenna and the general posture in lateral view easily separate Alainites and Nigrobaetis from other genera in Maghreb. Contrary to Alainites , Nigrobaetis presents unmodified paraproct (Fig. 2J View Figure 2 ) and prostheca (Fig. 2B View Figure 2 ).
Two species of Nigrobaetis are reported in the Maghreb: Nigrobaetis numidicus ( Soldán & Thomas, 1983) (Fig. 5A View Figure 5 ) and Nigrobaetis rhithralis ( Soldán & Thomas, 1983) (Fig. 5B View Figure 5 ). Nigrobaetis rhithralis is widely distributed through the Maghreb from Tunisia to Morocco but is rather restricted and never abundant ( El Alami et al. 2000; Godunko et al. 2018).
Nigrobaetis numidicus was originally described from Oued Chiffa, close to Alger at an altitude of 200m. It was most certainly a very rare species there, as only four specimens were collected ( Soldán and Thomas 1983b). Despite being easily recognizable by the smooth distal margin of abdominal tergites and its peculiar tergal pattern (Fig. 5A View Figure 5 ), this species was never reported from Algeria since its original description; in Morocco it seems to only occur in a few localities of the Middle Atlas and Rif ( Zerrouk et al. 2021; El Alami et al. 2022a).
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