Collective dynamics of active dumbbells near a circular obstacle.

In this article, we present the collective dynamics of active dumbbells in the presence of a static circular obstacle using Brownian dynamics simulation. The active dumbbells aggregate on the surface of a circular obstacle beyond a critical radius. The aggregation is non-uniform along the circumference, and the aggregate size increases with the activity (Pe) and the curvature radius ().

The Orchestra Nocturne: Description For Six New Katydid Species From India (Orthoptera: Tettigoniidae).

The paper describes six new species from three genera of Tettigoniidae. The paper evaluates the status of Hexacentrus Serville 1831, Phyllomimus Stl 1873 and Euconocephalus Karny 1907. Diagnostic characters for new members of each genus are described along with additional information about the ecology and distribution of species.

Description of two new species of the Genus Ducetia Stål 1874 (Orthoptera: Tettigoniidae: Phaneropterinae) from India.

In the present paper the genus Ducetia Stål 1874 in India is reviewed. The diagnostic characters for two new species of Ducetia Stål 1874, D. assamica sp.