A new name for the Oriental genus Nyssomyia Hull, 1962 (Diptera: Asilidae) is proposed. Homonymy exists between this Oriental robber fly genus and the more senior Neotropical phlebotomine sand fly genus Nyssomyia Barretto, 1962 (sensu Galati 2003) (Diptera: Psychodidae), and the following replacement name is proposed: Ekkentronomyia nom. nov. for Nyssomyia Hull (nec Barretto 1962). Accordingly,...

Morphology of three species of the cladoceran genus Camptocercus Baird, 1843 (Anomopoda: Chydoridae), North Asian C. streletskayae Smirnov, 1998, Australian C. australis Sars, 1896 and Neotropical C. dadayi Stingelin, 1913, is investigated. Revealed data confirm a high level of morphological diversity within the genus. C. australis and C. dadayi belong to the uncinatus-clade of the genus, while...

(1) The dimension of the pluricanonical series, h(C,mK), grows linearly with m for curves of genus at least two. (2) The canonical/cotangent bundle of a curve of genus at least two is ample. (3) A curve of genus at least two admits a hyperbolic metric with constant negative curvature. (4) Curves of genus at least two are uniformized by the unit disc, hence they do not admit any non-constant hol...

We report a small advance on a question raised by Robertson, Schweitzer, andWagon in [RSW02]. They constructed a genus-13 polyhedron built from bricks without corners, and asked whether every genus-0 such polyhedron must have a corner. A brick is a parallelopiped, and a corner is a brick of degree three or less in the brick graph. We describe a genus-3 polyhedron built from bricks with no corne...

The Kinnaridae genus Potiguara was established by Hoch & Ferreira (2013) with the type species Potiguara troglobia Hoch et Ferreira, 2013 from Brazil. So far, this genus includes only the type species. Nevertheless, the name Potiguara is preoccupied and it was initially introduced by Machado et Brito, 2006 for an extinct genus of the fish family Pycnodontidae (with the type species Coelodus ros...

Unicellular maps are a natural generalisation of plane trees to higher genus surfaces. In this article we study covered maps, which are maps together with a distinguished unicellular spanning submap. We prove that the covered maps of genus g with n edges are in bijection with pairs made of a plane tree with n edges and a bipartite unicellular map of genus g with n +1 edges. This generalises to ...