Labiobaetis janae Kaltenbach & Gattolliat, 2018

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

4. Labiobaetis janae Kaltenbach & Gattolliat, 2018

Labiobaetis janae : Kaltenbach and Gattolliat 2018.

Additional description.

Larva. Re-examination of type material confirmed that the species has most of the diagnostic characters of the group Labiobaetis petersorum as listed above. This includes characters not or not correctly described or illustrated in the original description ( Kaltenbach and Gattolliat 2018: figs 19-20): hypopharynx distolaterally with two additional tufts of setae (as Fig. 3a ); anal margin of tergalii with both short and long, fine setae (as Fig. 6e ); claw with very slightly convex ventral margin; claw with subapical seta (as Fig. 5l ); femur posterior apex with stout setae on fore and middle legs, not on hind leg (as Fig. 5e ). The flagellum has no brown dots, as it is usually the case in the group Labiobaetis petersorum .

Material examined.

Paratypes. INDONESIA • Papua Prov., Lake Habemma , stream; 04°07'46"S, 138°40'46"E; 3200 m; 19.x.2011; leg. M. Balke; (PAP07); on slide; GBIFCH00465182; MZL .

Figures

Figure 3. Labiobaetis amber sp. nov., larva morphology: a. Hypopharynx and superlinguae; b. Maxilla; c. Maxillary palp; d. Section of maxilla. Scale bars: 50 µm.

Figure 5. Labiobaetis amber sp. nov., larva morphology: a. Fore leg; b. Fore femur, dorsal margin; c. Fore femur, apex; d. Fore femur, ventral margin; e. Fore femur, apex, posterior side; f. Fore tibia, dorsal margin; g. Fore tibia, ventral margin; h. Fore tibia, posterior surface; i. Fore tarsus, dorsal margin; j. Fore tarsus, ventral margin; k. Fore claw; l. Tip of fore claw. Scale bars: 50 µm.

Figure 6. Labiobaetis amber sp. nov., larva morphology: a. Base of antenna; b. Antenna; c. Abdominal tergum IV; d. Tergalius IV; e. Anal margin of tergalius IV; f. Paraproct; g. Larval protogonostylus (II, III: segments II and III). Scale bars: 50 µm.