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FIGURE 4 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 4. Worker of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Forewing (arrow indicates termination of radius on leading edge of wing). B. Outer surface of metatibia and metatarsus. C. Inner surface of metatibia and metatarsus.

FIGURE 3 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 3. Worker of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Dorsal detail of head and mesosoma. B. Facial view. C. Integumental sculpture of mesosomal dorsum.

FIGURE 17 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 17. Nest of Melipona favosa (Fabricius) in the base of a large Libidibia coriaria (Jacq.) Schltdl. (Fabaceae: Caesalpinioideae), in La Guajira, Colombia (photographs by M.S. Engel). A. Worker at entrance made of mud in a radiating pattern. B. Detail of guard at nest entrance. C. Worker departing nest entrance.

FIGURE 1 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 1. Map of La Guajira Department and neighboring areas in northern Colombia, with inset showing location of map within Colombia (rectangle). Pink outline defines the territory of the Wayuú, the dots the location where nests of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species, were found, with the green dot representing the type locality. Map produced using the SimpleMappr tool (Shorthouse, 2010).

FIGURE 6 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 6. Queen of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Facial view. B. Dorsal detail of head and mesosoma. C. Outer surface of metatibia and metatarsus.

FIGURE 9 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 9. Male terminalia of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Sternum VI. B. Sternum VII. C. Genital capsule (left half is dorsal, right half is ventral).

FIGURE 2 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 2. Worker of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Lateral habitus. B. Dorsal habitus.

FIGURE 5 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 5. Queen of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Lateral habitus. B. Dorsal habitus.

FIGURE 8 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 8. Drone of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species. A. Facial view. B. Outer surface of metatibia and metatarsus. C. Ventral view of metasomal apex. D. Ventral oblique aspect of metasomal apex, showing length and angulation of setae on sternal brushes.

FIGURE 16 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 16. Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species, from La Guajira, Colombia. A. Diagrammatic outline of sagittal section of nest and contents (note that nest entrance was removed and would be facing outward toward the viewer), B. Photograph of medial section of brood cells. C. Photograph of honey pots and brood cells.

FIGURE 13 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 13. Nest of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species, in La Guajira, Colombia (photographs by M.S. Engel). A. Location of nest in the side of a divi-divi tree (Libidibia coriaria (Jacq.) Schltdl.) (Fabaceae: Caesalpinioideae) (arrow shows position of nest entrance). B. Detail of nest entrance.

FIGURE 11 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 11. Diagram of entire mature larva of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species, lateral view, head toward left, showing distribution of paired segmental dorsolateral body tubercles and small size of larva.

FIGURE 15 in Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

FIGURE 15. Sampled nest of Trigonisca (Trigonisca) mepecheu Engel and Gonzalez, new species, from La Guajira, Colombia (photographs by M.S. Engel). A. Section of Libidibia coriaria (Jacq.) Schltdl. (Fabaceae: Caesalpinioideae), with side removed to expose nest within. B. Detail of brood cells in situ. C. Detail of brood cells in situ.

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FIG. 6 in A new genus and species of barnacle (Cirripedia, Verrucomorpha) associated with vents of the Lau Back-Arc Basin: its gross morphology, inferred first juvenile stage and affinities

FIG. 6. — Comparison between the primordial plates of the earliest juvenile stages of the principal suborders of thoracic Cirripedia; A, Lepadomorpha, Lepas (from Newman et al. 1979: fig. 87); B, Scalpellomorpha, composite of Neolepas and Pollicipes (respectively from Newman, in prep. and Broch 1922); C, Neoverruca (reconstructed from Newman 1989); D, x-juvenile (Høeg & Newman 1997 & herein); E, F, Verruca and Semibalanus (respectively from Runnström, 1925, 1927). Abbreviations: S, scutum; T, tergum; C, carina).

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FIG. 2 in A new genus and species of barnacle (Cirripedia, Verrucomorpha) associated with vents of the Lau Back-Arc Basin: its gross morphology, inferred first juvenile stage and affinities

FIG. 2. — Plates of Imbricaverruca yamaguchii gen. et n. sp. (paratype, MNHN Ci2711); A, B, viewed from above and from the rostral end, respectively; A, note the operculum, comprising the plates of the right side (MS-L-MT), includes a large median latus; B, note the slightly open aperture to the mantle cavity between the occludent margins of the movable (MS & MT) and the fixed (FS & FT) scutum and tergum, respectively; C-M, variously disarticulated hard parts; C, interior view of wall (R-C-FS-FT) and operculum (MS-L-MT) with all of the imbricating plates, except the uppermost of the three principle lateral tiers of the right side (rl1-l1-cl1), stripped away [an approximation of the rostrum (R), which did not survive dissection, is indicated by the dashed line]; D, E, movable scutum (MS); external and internal views respectively; scutal adductor muscle, inserting from just below to up under the apical concavity in Fig. 2E, extends to its origin on the fixed scutum (FS, Fig. 2G; the relationship of MS to FS can be seen in Fig 2C); F, G, fixed scutum (FS); basal and internal views, respectively. Dashed line in G indicates origin of scutal adductor muscle but no scar is evident. The relationship of the two protuberances (best seen near the tergal margin in Fig. 2G) to the fixed tergum (FT, Fig. 2J, K), was not resolved; H, I, movable tergum (MT); external and internal views respectively (external corrosion in bleach and cleaning inadvertently obliterated growth line ornamentation in H); J, K, fixed tergum (FT); external and internal views respectively; L, M, carina from below and above respectively (the rostrum did not survive dissection and cleaning). Abbreviations: C, carina; cl1-4, l1-4, rl1-4, carinolateral, lateral and rostrolateral plates forming three tiers each four plates high, respectively; FS, FT, fixed scutum and tergum; L, median latus; MS, MT, movable scutum and tergum; R, rostrum. Scale bars: 1 mm.

FIG. 10 in The megalopa stage of the hydrothermal vent crab genus Bythograea (Crustacea, Decapoda, Bythograeidae)

FIG. 10. — Colour photograph of a relatively large (carapace width estimated as between 7 and 8 mm) live megalopa stage of Bythograea thermydron Williams, 1980 collected from the East Pacific Rise (C. Epifanio and A. Dittel collection).

FIG. 9 in The megalopa stage of the hydrothermal vent crab genus Bythograea (Crustacea, Decapoda, Bythograeidae)

FIG. 9. — Megalopa stage of Bythograea, first and second antennae and sternal region: A, first antenna (antennule); B, second antenna; C, sternal region, anterior toward top of figure, with pereiopodal coxae indicated by dashed lines. Scale bars: 1 mm.

FIG. 8 in The megalopa stage of the hydrothermal vent crab genus Bythograea (Crustacea, Decapoda, Bythograeidae)

FIG. 8. — Megalopa stage of Bythograea, miscellaneous images: A, anterolateral region of carapace in dorsal view, white arrow indicating peritrichous ciliate (one of several found on carapace); B, higher magnification of ciliate marked by arrow in A; C, ventral view of left eyestalk and base of antenna; D, tip of endopod of second pleopod showing curved, interlocking serrate spines (cincinulli), disassociated in this view for clarity. Scale bars: A, 200 µm; B, 20 µm; C, 500 µm; D, 50 µm.

FIG. 6 in The megalopa stage of the hydrothermal vent crab genus Bythograea (Crustacea, Decapoda, Bythograeidae)

FIG. 6. — Megalopa stage of Bythograea, same individual as in Figure 1, selected appendages, abdomen, and telson: A, right cheliped, external view; B, dactylus of third pereopod,dorsal view; C, first pleopod, anterior view; D, fourth pleopod, anterior view; E, posterior two abdominal somites, telson, and uropods, dorsal view; F, ventral view of same region shown in E. Scale bars: A, 5 mm; B-F, 2 mm.