embryonic hypopharynx & epidermis
embryonic labial segment & embryonic epidermis
embryonic labral segment & embryonic epidermis
embryonic maxillary segment & embryonic epidermis
Weak embryonic neurogenic phenotype. Main defects are in the cephalic region up to the prothoracic segment, head cuticle being reduced to some derivatives of the clypeolabrum, labium, hypopharynx and maxilla. Dorsal cuticle is normal.