Figure 2 in Morphology of immature stages of Bittacus choui (Mecoptera: Bittacidae) with notes on its biology

Figure 2. Bittacus choui, head of first instar. (A) Front view. (B) Lateral view. (C) Caudal view. a9, posterior mandibular condyle; a0, cranial articulations of maxilla; Ant, antenna; at, anterior tentorial pits; Bu, egg burster; cas, cardo-stipes; Clp, cylpeus; cs, coronal suture; c, anterior mandibular acetabulum; cvpl, cervical plate; Cvx, cervix; E, compound eye; For, occipital foramen; Fr, frons; fs, frontal sutures; Ge, gena; gl, galea; Lb, labium; Lm, labrum; Lbp, labial palpus; Md, mandible; mt, mentum; Mx, maxilla; Mxp, maxillary palpus; occ, occipital condyle; O, ocellus; Plst, plerostoma; pmt, postmentum; pt, posterior tentorial pit; sgs, subgenal suture; sm, submentum; Vx, vertex; Head setae were named as A1, Lm1, Lm2, Cl1, Cl2, F1, F2, Vx1, Vx2, Vx3, G1, G2, G3, G4 and G5 respectively.