Embryonic development of Cranopygia sp. (Pygidicranidae), DAPI staining, UV-excitation, fluorescence microscopy. Lateral view, anterior to the top, ventral to the left. A Stage 2. B Early Stage 3. C Middle Stage 3. D Late Stage 3. E Stage 4. F Early Stage 5. G Late Stage 5. H Early Stage 6. I Late Stage 6. J Middle Stage 7. K Late Stage 7. L Early Stage 8. M Middle Stage 8. N Late Stage 8. O Stage 9. – Abbreviations: Ab – abdominal region / abdomen; Am – amnion; An – antenna; Bd – blastoderm; CE – compound eye; Ce – cercus; DDC – definitive dorsal closure; EA – embryonic area; EEA – extraembryonic area; Em – embryo; Gn – gnathal region; HC – head capsule; HL – head lobe; LP – lateral plate; Mx – maxilla; MxP – maxillary palp; Pce – protocephalon; Pco – protocorm; PDC – provisional dorsal closure; SDO – secondary dorsal organ; Se – serosa; SYN – secondary yolk nucleus; Th – thoracic region / thorax; Th2 – 2nd thoracic segment; Th1L, 3L – 1st and 3rd thoracic legs; I–XI – 1st to 11th abdominal segments. – Symbols: black arrowhead – anterior end of embryo; white arrowhead – posterior end of embryo. – Scale bar: 500 μm.