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.
This looks a lot like Aspioscelis bulbosa, pictured in Castner's "Amazon Insects". iNaturalist's database doesn't have that species or even that genus (even searching external providers).
Location: Makunda Christian Hospital, Karimganj District, Assam
Date: 13th March 2013
Equipment: Nikon D300s with Micro-Nikkor 105mm
Location: Makunda Christian Hospital campus, Karimganj District, Assam
Date: 11th November 2012
Equipment: Nikon D300s with Nikkor AF 28-105mm lens
Eumastacoidea is a superfamily within the order Orthoptera. The family has a mainly tropical distribution. Some of the characters of the members of the superfamily are the lack of an abdominal tympanum, wings if present wident towards the tip, the antennae are short in some groups the hindlegs are spread out laterally at rest. The overall classification based on genitalic characters and the geographic distribution of the groups are as follows: