Key to known larvae of Navasoleon Banks
1. Head capsule (Fig. 65–67) with abundant white setae laterally, longer than antennae, extending apically to distal tooth; middle tooth a little longer than distal tooth; metathoracic scolus-like processes doubled, followed by double pair on abdominal segment I, followed by size decreasing single scolus-like process to abdominal segment 7; terminal abdominal segment with small brown setae, elsewhere without stout setae............ Navasoleon lithophilus Miller
— Head capsule (Fig. 68–69) with lateral white setae shorter than antenna; mandible without dense white setae, middle tooth about as long as distal tooth; metathoracic scolus-like processes double followed by single pair scolus-like process on abdominal segment 1, which is smaller and more slender than next scolus-like process, followed by single scolus-like processes decreasing in length through abdominal segments 2-8 which has smallest scolus-like process; terminal abdominal segment with about ten well developed dark brown setae posteriorly, elsewhere with relatively stout setae........................ Navasoleon venezolanus Stange