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FIGURE 17 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 17. Eurhopalothrix circumcapillum holotype worker (Nicaragua, CASENT0639417). Scale bars: face view = 0.2 mm, lateral view = 0.5 mm.

FIGURE 16 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 16. Eurhopalothrix cimu holotype worker (Cuba, CASENT0639338). Scale bars: face view = 0.2 mm, lateral view = 0.5 mm.

FIGURE 15 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 15. Eurhopalothrix bolaui worker (Costa Rica, INBIOCRI001222540). Scale bars: face view = 0.2 mm, lateral view = 0.5 mm.

FIGURE 13. A. Eurhopalothrix ortizae, showing narrow gastral setae. B. E in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 13. A. Eurhopalothrix ortizae, showing narrow gastral setae. B. E. schmidti, showing more spatulate setae.

FIGURE 11. A in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 11. A. Eurhopalothrix guadeloupensis, lateral view of petiole. B. E. gravis, lateral view of petiole. C. E. guadeloupensis, face view. D. E. gravis, face view.

FIGURE 9. A in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 9. A. Eurhopalothrix mabuya, showing narrow setae on face. B. E. guadeloupensis, showing more spatulate setae on face.

FIGURE 31 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 31. Eurhopalothrix sepultura holotype worker (Mexico, CASENT0603545). Images from AntWeb (Erin Prado).

FIGURE 21 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 21. Eurhopalothrix hunhau holotype worker (Guatemala, CASENT0614549). Scale bars: face view = 0.2 mm, lateral view = 0.5 mm.

FIGURE 34 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 34. Eurhopalothrix zipacna holotype worker (Honduras, CASENT0617561). Scale bars: face view = 0.2 mm, lateral view = 0.5 mm.

FIGURE 7. A. Eurhopalothrix pilulifera, showing expanded infradental lamella. B. E in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 7. A. Eurhopalothrix pilulifera, showing expanded infradental lamella. B. E. xibalba, showing narrow infradental lamella.

FIGURE 6. A in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 6. A. Eurhopalothrix gravis, showing full complement of 18 specialized setae that are strongly differentiated from ground pilosity. B. E. semicapillum, showing full complement of 14 specialized setae that are not highly differentiated from ground pilosity. C. E. sepultura, showing full complement of 8 specialized setae.

FIGURE 5. A. Eurhopalothrix cimu, showing transverse facial arc. B. E in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 5. A. Eurhopalothrix cimu, showing transverse facial arc. B. E. clypeata, showing clypeal carina (from Kempf and Brown, 1960).

FIGURE 4 in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 4. Eurhopalothrix bruchi, face and lateral views (Paraguay, CASENT0173970). Images from AntWeb (April Nobile).

FIGURE 2. Eurhopalothrix labra. A. E in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 2. Eurhopalothrix labra. A. E. bolaui (Nicaragua, CASENT0619922). B. E. semicapillum (Costa Rica, CASENT0639342). C. E. ortizae (Costa Rica, LACM ENT 143281). D. E. gravis (Costa Rica, INB0003212299). E. E. sepultura (Mexico, CASENT0639334). F. E. mabuya (Cuba, CASENT0630193). G. E. xibalba (Costa Rica, INB0003698926). H. E. floridana (USA, LACM ENT 143276). I. E. cimu (Cuba, CASENT0639337). A–H are dissected labra imaged in fluid. I is dry-mounted specimen, basal portion is not visible, and maxilla are visible in background. With the exception of E. cimu, specimen codes are for dry-mounted specimens from the same series, not the dissected specimen. Images are not to scale.

FIGURE 1. Eurhopalothrix mandibles, showing simple versus double tooth row. A in A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species

FIGURE 1. Eurhopalothrix mandibles, showing simple versus double tooth row. A. Dorsal face of mandible, E. oscillum. Teeth are numbered from 1 at the base to 11 at the apex. B. Dorsal face of mandible, E. floridana, with 10 teeth in outer row. C. Interior face of mandible, E. floridana. Lines point to inner tooth row. For species with an inner tooth row, note common condition in which outer tooth 1 is somewhat broadened, tooth 2 is long and sharp like inner teeth, teeth 3–6 are shorter and not as sharp, teeth 7–10 are slightly developed as an apical fork, with outer teeth long and inner teeth short.

FIGURE 15 in Redescription of Eurhopalothrix reichenspergeri (Santschi, 1923) stat. rev. (Hymenoptera: Formicidae), a Brazilian Atlantic Forest endemic species

FIGURE 15. Comparison of full-face view of head (A and D), mesosoma profile (B and E) and propodeum, petiole and postpetiole (C and F) between males of Eurhopalothrix reichenspergeri and Eurhopalothrix ufv-01. A–C, E. reichenspergeri (UFV-LABECOL-010764); D–F, Eurhopalothrix ufv-01 (ANTWEB1038061). Scale bars are 0.1 mm. Arrowheads indicate characters which differ between the species (see discussion under Eurhopalothrix ufv-01 comments).

FIGURE 14. Eurhopalothrix ufv-01 in Redescription of Eurhopalothrix reichenspergeri (Santschi, 1923) stat. rev. (Hymenoptera: Formicidae), a Brazilian Atlantic Forest endemic species

FIGURE 14. Eurhopalothrix ufv-01 (ANTWEB1038061), the putative male of E. spectabilis. A, profile view of body; B, dorsal view of the body; C, detail of mandibles in anterodorsal view; D, mesothorax in dorsal view. Scale bars are 0.1 mm. Abbreviations (according to Boudinot, 2015): pl, parapsidal line; tscl, transcutal line; sss, scutoscutellar suture.

FIGURE 12 in Redescription of Eurhopalothrix reichenspergeri (Santschi, 1923) stat. rev. (Hymenoptera: Formicidae), a Brazilian Atlantic Forest endemic species

FIGURE 12. Eurhopalothrix reichenspergeri male (UFV-LABECOL-010764). A, profile view of body; B, dorsal view of the body; C, detail of mandibles in full-face view; D, mesothorax in dorsal view. Scale bars are 0.1 mm. Abbreviations (according to Boudinot, 2015): pl, parapsidal line; tscl, transcutal line; sss, scutoscutellar suture.

FIGURE 10. Eurhopalothrix rechenspergeri worker. A in Redescription of Eurhopalothrix reichenspergeri (Santschi, 1923) stat. rev. (Hymenoptera: Formicidae), a Brazilian Atlantic Forest endemic species

FIGURE 10. Eurhopalothrix rechenspergeri worker. A, full-face view of head; B, profile view of body; C, dorsum of labrum, slide mounted; D, anterolateral and slightly dorsal view labrum in situ (right mandible removed, apical half of labrum is dorsally flexed); E, dorsal view of body; F, dorsal view of metasoma. Scale bars are 0.1 mm. White arrow head in B indicates diagonal carina on lower mesopleuron and in F, the posterior mediolateral tumulus of the postpetiole. Abbreviations: lbl, labral lobes; lbas, labral apical setae. Images A, B, E and F of specimen UFV-LABECOL-010765; image C of UFV-LABECOL-000721; and image D of UFV-LABECOL-008633.

FIGURE 11 in Redescription of Eurhopalothrix reichenspergeri (Santschi, 1923) stat. rev. (Hymenoptera: Formicidae), a Brazilian Atlantic Forest endemic species

FIGURE 11. Eurhopalothrix reichenspergeri queen (UFV-LABECOL-010767). A, Full-face view; B, profile view of body; C, dorsal view of body; D, dorsal view of mesothorax. Abbreviations (according to Boudinot, 2015): pl, parapsidal line; tscl, transcutal line; sss, scutoscutellar suture. Scale bars are 0.1 mm.