FIGURE 5 in Tonsuritermes, a new soldierless termite genus and two new species from South America (Blattaria: Isoptera: Termitidae: Apicotermitinae)

FIGURE 5. Tonsuritermes tucki sp. nov., structure of the frontal gland in worker type 1, A—Sagittal section of the head of Tonsuritermes tucki sp. nov. worker. The frontal gland is stretched in-between the two arrows. B—Transition between the head cuticle and highly modified glandular cuticle overlying the secretory cells. C—Remains of secretory cell ultrastructures. Abbreviations: br, brain (supraoesophageal ganglium); cl, clypeus; gc1, inner glandular cuticle; gc2, outer glandular cuticle; hc, head cuticle; hp, hypopharynx; lb, labrum; m, mitochondria; mm, mandibular muscles; n, nucleus; ph, pharynx; sc, remains of a secretory cell; sv, secretory vesicle.Published as part of Constantini, Joice P., Carrijo, Tiago Fernandes, Palma-Onetto, Valeria, Scheffrahn, Rudolf, Carnohan, Lucas Paul, Šobotník, Jan & Cancello, Eliana M., 2018, Tonsuritermes, a new soldierless termite genus and two new species from South America (Blattaria: Isoptera: Termitidae: Apicotermitinae), pp. 383-394 in Zootaxa 4531 (3) on page 391, DOI: 10.11646/zootaxa.4531.3.4, http://zenodo.org/record/261474