Pogonomyrmex rugosus Species Introduction

Species Introduction Claustral: a single, newly-mated queen seals herself in a chamber and raises her first workers entirely on stored nutrients and metabolized wing muscles. Native to the southwestern United States. Inhabits a variety of habitats, including desert, scrubland, and grasslands. Strictly diurnal and will seal up the nest at night. Mature colonies are large, dominant, and impressive. Can aggressively defend their colony when provoked using a powerful sting. Some of the most reliable harvester ants, P. rugosus are great for beginners. Provide them with a very warm section of their nest, ensure water access, and replenish seeds frequently. Formicarium Substratum nest highly recommended, originally created as a nest for harvester ants. Alternative formicaria can struggle to maintain humidity at the high temperatures these ants require. Very warm. Ideally the nest will have a gradient of 75–95°F. A heated foraging area will cause the ants to be more active (they're strictly diurnal in the wild) but that's not strictly required for them. 1/2" Red plate cover for nest recommended. Foraging arena can be brightly lit during the daytime. Water & Humidity Harvester ants require humid sections of the nest for their sensitive brood stages and to soften their seeds for processing. A moisture gradient is recommended. They will store seeds in warm, dry chambers called granaries. Recommended to use TrapJaw Labs PVA sponges for founding due to improved humidity. Water-only liquid feeder in outworld useful. Carbohydrates P. rugosus will benefit from sliced, organic fruits with sugar, but they primarily consume insect protein and seeds. You are welcome to supplement the rest of their diet with honey or sugar water, but it's not necessary. Optional — they won't use it heavily. Protein P. rugosus benefit from insect protein. We suggest supplying pre-killed feeder insects 2–3 times a week. TrapJaw Labs feeds our P. rugosus colonies with pre-killed Drosophila melanogaster and D. hydei fruit flies, cockroach nymphs, and sliced mealworms. They will also accept sliced crickets. Two to three times per week. Increase amounts to scale with brood development. Seeds P. rugosus occasionally store collected seeds in humid areas, which can lead to germinating in the nest. If this is something you want to avoid, use the TJL Premium Seed Mix. This species prefers a wide variety of native grass seeds. The TJL Seed Mix is a good place to start if unsure of what kind to offer. Seeds can be stored in a cool, dry place or in a freezer. Once per week Maintenance Weeks 1-3: Very humid, warm, dark, undisturbed. Weeks 4–6: First workers appear. Aggressive protein schedule + first seeds. Months 2+: Colony is beginning to grow. Maintain humidity and heat constantly, their growth pattern does not tolerate fluctuating conditions. Diapause may be required for this species. Care Summary Humidity gradient + very high heat — Substratum nest strongly recommended Protein 2–3x/week (their primary diet) Variety of seeds (use TrapJaw seed mix to avoid germination) Hot gradient 80–95°F Three times a week: Pre-killed protein, clear leftovers in 24h Once per week: Add varied seed mix Two to three times per week: Top up nest water reservoir