Location: Makunda Christian Hospital, Karimganj District, Assam
Date: 4th June 2014
Equipment: Nikon D800 with Nikkor 300mm f2.8 + 2x TC
From James L. Castner's "Amazon Insects: A Photo Guide", this seems to be genus Eumastax, but that genus is not (yet) in iNaturalist's database.
Eumastacidae are a family of grasshoppers sometimes known as monkey- or matchstick grasshoppers. They usually have thin legs that are held folded at right angles to the body, sometimes close to the horizontal plane. Many species are wingless and the head is at an angle with the top of the head often jutting above the line of the thorax and abdomen. They have three segmented tarsi and have a short antenna with a knobby organ at...