You will need to do "Mine Enemy" twice, each time choosing one of the two needed components. Then just take both the hatchling and the schematic to Memory Alpha to craft (or have them in your personal bank).
You will also need 180 points in crafting and the following data samples:
40 Mineral Samples
20 Alien Artifacts
20 Radiation Samples
There are also some better Horta available in the C-Store, no crafting required for them.