DoctorPhenomenon
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SCP-XXXX:

Object Class: Euclid

Special Containment Procedures: SCP-XXXX is to be directly observed at least once a week for physical changes and to be under video surveillance at all times in the event of a behavioral change. One cow is to is to be dropped into the pit every two days to feed SCP-XXXX. D-class personnel are to be used when data collections necessitates a person to enter the pit. Only Researchers with Level 3 clearance and above are allowed to order expeditions into the pit. The researcher must monitor the expedition from the rim of the pit until all members of the expedition are out of the pit.

If SCP-XXXX is observed to begin to leave the pit, the area is to be evacuated and SCP-XXXX is to be observed by Foundation aircraft until it begins digging a new pit. Once SCP-XXXX has completed it's pit and ceased movement, research personnel may resume activities near the new pit. SCP-XXXX is to be neutralized by air-to-ground missiles only if it endangers a large inhabited area.

Description: SCP-XXXX is an ant-lion (myrmeleon formicarius) larvae, colloquially known as a, "doodlebug". SCP-XXXX is anomalous due to the fact that it is approximately 20 meters long. Apart from its large size, SCP-XXXX behaves in a manner consistent with its species, using its flat lower body to launch earth while digging a cone shaped pit, burying itself inside the center of the pit with only its jaws exposed, and launching earth at any prey that falls into its pit, causing the prey to slide towards the center. Any prey that that falls into the center of the pit is impaled on the mandibles of SCP-XXXX and consumed. If SCP-XXXX goes to long without feeding, it has been observed to enlarge its pit. The pit is currently 100 meters in depth. The Foundation has decided to feed SCP-XXXX cows rather than risk it relocating to find food. Generally SCP-XXXX ceases activity after being fed and the pit can be entered safely.

Discovery: SCP-XXXX was found in the state of ██████ in the United States in a remote desert location on July 7, 20██ due to information from the civilians involved in the recovery of SCP-████. Foundation officials set up a perimeter and began observation. Initially labeled SCP-████-A, SCP-XXXX was reclassified as a distinct SCP due to its unique needs and characteristics. A small research building was added to house researchers and monitoring equipment.

Addendum A: If SCP-XXXX begins to form a cocoon, Foundation Headquarters are to be notified immediately.

Ant-lion larvae mature into larger, winged, insects. It would be far more difficult to contain SCP-XXXX if it develops in this manner. - Dr. Phenomenon