Bezzia chilensis Spinelli & Ronderos, 2001, fourth instar larva (SEM) a Head chaetotaxy, ventrolateral view b Head chaetotaxy, dorsolateral view c Head capsule detail, oblique anteroventral view d Head capsule detail, ventral view e Mouthpart, ventral view f Hypostoma and mouthparts, ventral view. Antennae (AN); collar (CO); fossa mandibularis (MF); galeolacinea (GL); hypostoma (HY); labrum (LB); lacinial sclerite 1 (LC1); lacinial sclerite 2 (LC2); mandible (MD); messors (MS); maxilla (MX); maxillary palpus (MP); palatal bar (PB); palatum (PL); sensilla campaniformia (SCa); sensilla styloconica (SS); sensilla trichoidea (ST); Head capsule chaetotaxy: o, parahypostomal setae; p, posterior perifrontal setae; q, postfrontal setae; s, anteroperifrontal setae; t, prefrontal setae; u, mesolateral setae; v, posterolateral setae; w, anterolateral setae; x, parantennal setae; y, ventral setae.