New Neotropical species of Marilia Müller (Trichoptera: Odontoceridae)

Abstract

Five new species of the caddisfly genus Marilia Müller 1880 are described from the Neotropics, Marilia cabocla sp. nov., Marilia caipira sp. nov., Marilia cunhaporanga sp. nov., Marilia manicorei sp. nov., and Marilia muelleri sp. nov. Larvae and pupae of new species are also described, in addition to the immature stages of M. fasiculata Banks 1913 and M. huamantincoae Dumas & Nessimian 2009; an updated description of M. siolii Marlier 1964 male is provided. This work raises the number of species of this genus from 46 to 51 for the Neotropical Region.

Hexapoda Yearbook (Arthropoda: Mandibulata: Pancrustacea) Brazil 2020: the first annual production survey of new Brazilian species

“…A total of 680 new Brazilian species of Hexapoda were described in 2020, which are distributed among 245 genera, 112 families and 18 orders. These new species were published in a total of 219 papers (alencar & aZevedo 2020;almeida et al 2020aalvarado 2020;alveS et al 2020;ament et al 2020;amorim et al 2020;antuneS & takiya 2020;araujo & bravo 2020;Ávila Júnior et al 2020;baker & Haraty 2020;barboSa et al 2020;barbut 2020;barroS et al 2020abravo et al 2020;bellini et al 2020abenetti et al 2020abevilaqua & fonSeca 2020;biffi 2020biffi , biffi & GeiSer 2020braGa & ferreira-jr 2020;brown et al 2020;buSanello et al 2020;camacHo et al 2020;camarGo et al 2020;camarGoS et al 2020;camPaner & will 2020;camPoS et al 2020;caron et al 2020;carvalHo et al 2020;caSadei-ferreira et al 2020;caStro-HuertaS et al 2020;caStro-SouZa et al 2020acaterino & tiSHecHkin 2020;ceGolin et al 2020;cHaul 2020;ciPola et al 2020;clarkSon et al 2020;conStantini et al 2020;coSta et al 2020;curletti 2020;…”

Four New Caddisfly Species of Marilia Müller, 1880 (Trichoptera: Odontoceridae) from a Tailings Dam Disaster Area, Rio Doce basin, Brazil

“…Members of the family Odontoceridae are considered highly sensitive to environmental disturbances [57,58]. Marilia species prefer slow-moving river pools with sand and pebbles, where they may dig in the sandy substrate, which they also utilize to create their cases [7][8][9]. Therefore, they appear to rely strongly on the refuges of the hyporheic interstitial zone, so the fine tailing sediments seem to be inappropriate for their biology.…”

“…Species identifications were carried out with the aid of a stereomicroscope, with a magnification of 50×, and an optical microscope, with a magnification of 400×; the observed specimens were compared with the species described in the taxonomic literature, e.g., [3,9,[13][14][15]18,19,29].…”

“…Marilia larvae favor slow-flowing areas or depositional zones; however, they can be found in a variety of freshwater environments [7][8][9]. Odontocerid larvae are omnivorous, feeding on organic detritus, vascular plants, algae and aquatic arthropods [8,9]. Larval cases are formed of sand grains or bigger mineral particles and are extremely tough to crush [8,9].…”

“…Odontocerid larvae are omnivorous, feeding on organic detritus, vascular plants, algae and aquatic arthropods [8,9]. Larval cases are formed of sand grains or bigger mineral particles and are extremely tough to crush [8,9]. The presence of a sexual dimorphism in the eyes, which are very large in males, distinguishes Marilia adults from other Neotropical Odontoceridae [7,[10][11][12].…”