Fig. 11 in Comparative analysis of worker head anatomy of Formica and Brachyponera (Hymenoptera: Formicidae)

Fig. 11. Volume renderings of heads of Formica rufa (CASENT0790267: A,C – E) and Brachyponera luteipes (CASENT0709409: B,F – H). A,B: Frontal view of head capsule. C,F: Dorsal view of cephalic digestive tract with glands and parts of the musculature, 0lb2, and the central nervous system. D,G: Ventral view of cephalic digestive tract including glands, and the central nervous system. E,H: Sagittal view of cephalic digestive tract including glands, musculature and buccal cavity, and the central nervous system. — Abbreviations: 0bu1 – M. clypeobuccalis; 0bu2 – M. frontobuccalis anterior; 0bu3 – M. frontobuccalis posterior; 0bu5 – M. tentoriobuccalis posterior; 0ci1a – M. clypeopalatalis, unpaired portion; 0ci1b – M. clypeopalatalis, paired portion; 0hy1 – M. frontooralis; 0hy2 – M. tentoriooralis; 0hy9 – M. oralis transversalis; 0lb2 – M. frontoepipharyngalis; 0ph2 – M. tentoriopharyngalis; ala – atalar acetabulum; amo – anatomical mouth opening; ata – anterior tentorial arm; atp – anterior tentorial pit; br – brain; bt – buccal tube; clf – ventral clypeal projection / flange; cc – cardinal condyle; dhy – distal hypopharynx; dta – dorsal tentorial arm; dma – dorsal mandibular articulation; ep – epipharynx; epk – epipharyngeal keel; fc – frontal commissure; fg – frontal ganglion; fmo – functional mouth opening; frc – frontal carina; hyc – hypostomal cavity; hysc – hypostomal carina; hysp – hypostomal process; ibp – infrabuccal pouch; lb – labium; lbr – labrum; mped – M. pharyngoepipharyngalis, dorsal portion; mpel – M. pharyngoepipharyngalis, lateral portion; nan – antennal nerve; no – optical nerve; oa – oral arm; ocn – ocellar nerve; opl – optic lobes; pgr – postgenal ridge; ph – pharynx; phg – pharyngeal gland; pph – prepharynx; pphg – prepharyngeal gland; pta – posterior tentorial arm; sog – suboesophageal ganglion; tb – tentorial bridge; to – torulus; tol – torular lobe; trl – lateral torular arch; vma – ventral mandibular articulation. — Colors: beige / brown – mouthparts; green – cephalic digestive tract (prepharynx and pharynx); grey – cuticle; orange / red – muscles; purple – glands; yellow – nervous system. — Symbols: white arrowhead – hypostomal hump contacting mandibular groove; * – anterior surface of triangular hypostomal process receiving lateral stipital margin.