Ethra marginata, Gray, 1832

Silveira, Luiz F L, Khattar, Gabriel, Vaz, Stephanie, Wilson, Vinicius A., Souto, Paula M., Mermudes, José R. M., Stanger-Hall, Kathrin F., Macedo, Margarete V. & Monteiro, Ricardo F., 2020, Natural history of the fireflies of the Serra dos Órgãos mountain range (Brazil: Rio de Janeiro) - one of the ‘ hottest’ firefly spots on Earth, with a key to genera (Coleoptera: Lampyridae), Journal of Natural History 54 (5 - 6), pp. 275-308 : 293

E. marginata Gray, 1832 ( Figure 3 M )

Differential diagnosis. Overall brown, except for two longitudinal pale yellow stripes along the outer margin of the elytron, extending to the suture; flabellum of antennomere III projecting; anterior margin of the pronotum acute, lateral margins straight and as wide as humeral width.

Figures

Figure 3. Diversity of fireflies of the Serra dos Órgãos, including Amydetinae, Psilocladinae, Lampyrinae, and Incertae sedis taxa. A – Amydetes fastigiata, B – Magnoculus obscurus, C – Cladodes pauper, D – Cladodes illigeri, E – Cladodes stellata, F – Vesta thoracica, G – Araucariocladus hiems (modified from Silveira and Mermudes 2017), H – Psilocladus grandis, I – Psilocladus sigillatus, J – Psilocladus pulcher, K – Scissicauda disjuncta (modified from Silveira et al. 2016a), L – Ethra axillaris, M – Ethra marginata, N – Ethra addita, O – Ethra inculta. Scale bar: 2 mm.