Labiobaetis petersorum (Lugo-Ortiz & McCafferty, 1999)

Kaltenbach, Thomas, Vuataz, Laurent & Gattolliat, Jean-Luc, 2023, New species of Labiobaetis Novikova & Kluge from New Guinea (Ephemeroptera, Baetidae): a never-ending story of diversity, Alpine Entomology 7, pp. 83-134 : 83

1. Labiobaetis petersorum (Lugo-Ortiz & McCafferty, 1999)

Pseudocloeon petersorum : Lugo-Ortiz et al. 1999.

Labiobaetis petersorum : Kaltenbach and Gattolliat 2018: fig. 16a-d.

Remarks to morphology.

Larva. Based on the original description and the figures in Lugo-Ortiz et al. 1999, most of the diagnostic characters of group Labiobaetis petersorum are present. Exceptions are: the presence of dots on the flagellum; two additional distolateral tufts of setae on hypopharynx; stout setae on posterior apex of fore and middle legs; anal margin of the tergalii with both short and long setae. These characters remain unknown until reexamination of type material. Subapical setae are also not described for this species.

Labiobaetis cf. petersorum : we studied specimens morphologically very similar to L. petersorum , but collected in a location far away from the type locality of L. petersorum (Fig. 38a, b ). Unfortunately, we cannot compare COI sequences, because of the lack of a sequence from the type locality or nearby. Because of the geographical distance, we prefer to remain prudent and denominate these specimens as "cf. Labiobaetis petersorum ". Interestingly, they have all characters of the group Labiobaetis petersorum , except subapical setae.

Material examined

( L. cf. petersorum ). INDONESIA • 7 larvae; Papua Barat, Tamrau, Mts N of Kebar, sandy sunny riverbank; 00°47'02"S, 133°04'20"E; 758 m; 07.xi.2013; leg. M. Balke; (BH032); 1 on slide; GBIFCH00763702; 6 in alcohol; GBIFCH00975710; MZL .

Figures

Figure 38. Distribution of species treated in this study: a. Species of group Labiobaetis petersorum and L. kokoda sp. nov.; b. MOTUs of group Labiobaetis petersorum, not described in this study.