Terrestrial social insects build architecturally complex nests despite their limited sensors, minimal individual intelligence and the lack of a central control system. [3] Many of the nest structures emerge as a response of the individual insects to pheremones, which the insects themselves can emit.[2] The work in [4] extrapolated from social insect building behavior to a system where the behavior of homogenous swarms of virtual agents could be designed to build simple structures. Like termites, these agents have no memory and limited sensors, and the macroscopic structure emerges from their interactions with their immediate environments. This paper presents Stigcode, a swarm programming language that permits more complex structures to be more conveniently specified. A StigCode program is a description of a target structure that is compiled into a set of reactions to pheremone concentrations for the swarm agents. Though not Turing-Universal, StigCode provides a syntax for defining re-usable, composable design elements. In keeping with the entomorphic theme, In the manner of ant and termite nests, StigCode architectures can do limited self-repair